Qualification and Performance of Eletrical

8/9/2019 Qualification and Performance of Eletrical

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IPC CC 8308

wit

Amendment

1

Qualif ication and

Performance of

Electrical

lnsulating

Compound

for

Printed Wiring

Assemblies

ilil PETROBR S ETM·

CORP ST DTl

CÓPIA

CONTROLADA

NR

~ 1 4

Á R E

-@f/5T[@I I-

J i ~ . l f ,

D T :

f j ~

A REPRODUÇAO

TORNA

A CÓPIA

NAO CONTROLADA

October 2008

Supersedes IPC CC 8308

August2002

A standard developed by /PC

Anoci tion onnecting

Electronics

lndustrits

e ç · ~ W I I ~ . . . . . . . . , _

~ l l r i H I ... IIJIC

~ · ~ ~





uperse es

IPC-CC-8308 - Augusl

2002

IPC..CC-830A with

Amendment

1

July

1999

IPC·CC-83 A - October

1998

IPC.CC-830 - January 1984

IPC CC 8308 with Amendment 1

Qualification and

erformance of Electrical

lnsulating Compound

for

Printed Wiring Assemblies

Developed by

lhe

Conformai Coating Task Group 5-33a)

oi

lhe

Cleanlng

and Coating Comminee 5-30)

Users oi this publication

are

encouraged

to

particlpate In

lhe

development oi futura revisions.

Contact:

IP

3000

Lakeslde

Drive

u ~ e 309S

Bannockbum, lllinols

60015 1249

Tel847 615.7100

Fax

8 7

615.7105



IPC

·

OC-8306 wlth

Amendmool

1

Octobor

2006

cknowledgment

Any document invol•ing a complex tc:chnology draws material from a

•ast

number of sourc:es. While lhe principal members

of

lhe

Confonnal Coaling

nst

Group (5·33a)

of

lhe

Cleaning

anel

Coaling Committee (5·30)

are

shown

below, it

os

not

poss

ible to include ali

of

tbose who assiJtcd

in

thc evolution

of

this standard.

To

cach

of

thcm, llle members

of

thc

IPC

cxtend lheir gratiludc.

Cl ing and Coatlng

Committee

Chair

Douglas

O.

Plluls

Rock

weJI

Collins

Vice Chair

Debora

1 . . Obil>.

Trace uboratorics • East

ConforTMI Coatlng

Taak

Group

David Adams, Rockwell Collins

Greg Alexander, Asccntech, I . I . C

Gustavo Arredondo, Pura Tcch

Coating Inc.

Paul Berry, Dow Coming

Corporation

Gcrald l,.,eslic Boecn, Bechtel Plant

Machinery, Inc .

Calette Chamness. U.S. Anny

Av iation Missile Co onmand

David Corhett, Defcnsc Su pply

Ccntcr Columbus

Rudigcr Dietrich, l,.,ackwerkc Pctcrs

GmbH

: o KG

Mahendra Gandhi, Nonhrop

Grumman Space Technology

ll

ue

Gr

ee

n, Lockhced Manin Space

Systems Company

Michacl Green, Lockhoed Manin

Space Systems Company

Amy Hagnaucr, Rayllleon Company

Steve Hcnly,

Ac:ota

Limited

~ J i

c . ~

...................

~ ...... . _.... ...._

Conformai

Coatl

ng

Taak

Group

Chair

John P.

Waryold

llum•Scal Division

or

Chasc Corporation

Vice Chair

Debora 1 . . Obitz

Tr: cc uboratories - East

Chnstopher

u n ~

National Physical

l,.,aboratory

Joscph Kane,

BAE

Systems Plolfonn

SoluLions

Joson Keeping, Cclcstica

lntemational Inc.

William Kenyon, Global Ccntte

Consulling

Phol Kinncr, HumiSeal Division of

Chase Corporation

Svcn Kramer. Lackwcrkc Pctcrs

GmbH

Co

KG

Richard

KraS>.ewski,

Plcxus

Coop.

Vijay Kumar, Lockheed Manin

Missilc

:

Fire Contml

Kenncht Manning, Raytheon

Company

Rcnoo Michalk

iewic>.,

l rnce

L.aboratories - East

Roeer Miedico. Raytheon Company

Graham Naisbitt, Gcn3 Systems

Limiled

Dav

id Nelson, Raylheon Company

---

T

echnlcal Ll

alsona

of

-

I

PC oard of

Directora

l eler Bigclow

IMI Inc.

Sammy

Yi

Acxtronics lntemational

Lynn Nonnan, Continental

Automoti•c Systems

US,

Inc.

Victor Powell, L-3 Communications

Av

iotion R

ecord

ers

Barry Ritchic, Dow Coming

Corponuion

John Rohl6ng. Dclphi Elccttonoes

and Safcty

Henry

Sanftlehen, Delphi Electmnics

and Safcty

Jeffrcy Surgcrun

Hu miSea

l

l,.,owell Shennan, Defense Supply

Center Columbus

Gordon

Sullivan, tluntsman

Advanced Technology Ccnlcr

Manfred Suppa.

uckwerke

Petcrs

GmbH

Co KG

Cryslnl Vundcrpan,

Underwritcrs

ubo

ratories Inc.

David Vaugllan, Taiyo America Inc.

Fonda

Wu.

Raytbeon Company

,.,amar Young, Speciahy

Coatin&

Systcms Inc.

: ~ • f l 1 t O I I I I I . . . . . c J I f i C

llfa.QIM

O t iWOO t i M

•

.. ....._,.......,._,.ure



IPC CC 8XB Wdh

AlliBI

da a t 1

Table of Contents

1 SCOPE

..

..................

..

..

..

.......

.. ..

................................. I

1. 1 Scope ................................................... ............ .... .. I

1.2 Purpose .. .............................. ........ ........ .... .... .... ...... I

1

.3 Classilication .........................................................

I

1.3.1 Types ....................... ..

..

......

..

......

..

......

..

..

..

..............

I

1.3.2

Classes ..................................

..

...

..

..........................

I

1.4 lntcrprehtion .........................................................

I

2 APPUC.t.BLE OOCUMENTS .................................... I

2.1

2.2

2.3

2.4

2.5

2.6

PC

......................................................................... I

Govemment ........................................................... 2

Amcrican Socicty for Testing

of

Materia

is

..........

2

Underwrilel 5 laboratorics .....

..

.............................

2

AN 1 ........................

..

............................................ 2

ISO ........ ................................................................ 2

3

REQUIREMENTS ..................... .................... ............. 2

3. 1

3.1.1

3.1.2

3

.2

3.2. 1

3.2.2

3.

2.3

3.2.4

3.3

Gcncr tl Rcquircmen ts ................... ..................... ... 2

·

e

ams

and Defini

tions .......................................... . 2

ConHic1 ................................ ............ ...................... 2

lnspection and Testing RequiremeniS ...................

2

Qualificalion lnspection and Tcsting .................... 2

Qualification Retcnlion lnspection and Tcsling ...

2

Qual•ty Confonnance lnspeclion Tcsting ............. 3

Additiooal Tcsting ................................................. 3

Molerials RequircmcoiS ........................................ 3

3.3.1 Moleriols ................................................................ 3

3

.3.

2 Shclf

Life ..............................................................

3

3.3.3 Cure

.............. .... ....... ............ ........ ........ ............ ......

3

3.4 Chemical Requiremenl< ...... ........ ............ .............. 3

3.4.1

Fourier Transform lnfrared Spectrosc

opy

Tesl

(FTIR) .......................

..

..............

..

................ ... 3

3.5 Physical Requircmcnls .

..

..

..

..

..

..

..

..

..

..

..

................... 4

3.5.1 Viscosily ................................................................ 4

3.5.2 Appearancc ............................................................ 4

3.

5.3 Fluorcsccocc ......................... ................................. 4

3.5.4 Fungus R

es

isunce ................................................. 4

3.

5.5 Fledbilily .............................................................. 4

3.5.6 I'Wnmabilily ......................................................... 4

3.6 Electrical RequiremcniS ........................................4

3.6.1 Oiele<:tric Withstanding

Vo

lm

ge

(DWV) ............. 4

3.7 Environmcnlal Requirements ........ ........................ 4

3

7

1

Moi

sturc and Jnsulalion Rc

sislance ...................... 4

3.7.2 Tbermal Shock .. ...................................... ...... ........

4

3.7.3 Temperature ond llumidily Aging

(Hydrolytic Stobilily) .................... ........................ 4

3.8 Special Requiremcnts ...........

..

..

..

......

.. ..

..

..

..........

..

. 5

4 QUAUTY ASSURANCE PROVISION ......................

5

4.1 Responsibilily for lnspection ................................ 5

4.2 Categories of lnspection and Frequency .............. 5

4.2. 1 Qualificarion lnspeclion ........................................ 5

4.2.2 Qualification Retention lnspectioo ....................... 5

4.2.3 Quali1y Confonna.nce lnspectJon .......................... 5

4.3 Prodoct Change .....................................................

5

4.4

Tcst Equipmenl and lnspeclion Facilities ............ 5

4.4. 1

Standard Loboratory Condilion• ...........................

5

4.4.2 Pcrmissible Tempera1ure Variation

in

Environmcnlal Chnmbers ................................ ...... 6

4.4.3 Refcrcncc Conditions

.. ..

................................

..

...... 6

4.5 lnspection Rouline ................................................ 6

4.6

lnspection

Samp

ling .............................................. 6

4.6.1

Test Vehicles ......... ................................................ 6

4.6.2 Sample Size ........................................................... 6

4.6.3 Prepar.uion

Prior

10 Coating .................................

6

4.6.4

Coating ..................................................................

7

4.7 Failures .................................................................. 7

4.8 lnspection Reponing ............................................. 7

4.

8.1 Qualification Reponing .........................................

7

4.8.2 Qualification Relenlion Rcponing ........................

4.8.3 Quality Conformance Reporting .......................... 7

5 PREPARATION FOR DELIVERY ...... .... .......... .. ........ 7

5. 1 Co

nminers .................. .............. ..............................

7

5.2 Packaging ..........

..

............................................

..

.... 8

5.3 Marking . ............. .. ................ .. .................... ........... 8

6 NOTES ......

..

..

..

...................................................

..

..... 8

6. 1 Order Da1.1 ............................................................. 8

6.2 Formulation Change .............................................. 8

6.3 Conditioning .......................................................... 8

6.4 Cleanline55 ............................................................8

6.5 Adhcsion ................................................................ 8

6.6 Solvent Compatibilily ........................................... 8

6.7 ldentilication

of

Solvent Sen1itive

Conforma Coaling,> .............................................. 8

C C W ' W i t ~ ~ o - - . , . . , _

0

to\llftlr

iii

~ '

***

I'C

~ ..

I H O l i A A t S. .

JOO I71

10(M.51)• at eONE :: w:t I

t C AA

COM M .

. . . 201.......V U f C



IPC-CC-8JOB

wfth Al rle.

K I i lt 1

Appendlx A Example

oi

Quallllcatlon lnspection

Report ............ ......................................... 9

Appendlx

B

Example of Quallflcatlon Retention

lnspection Raport ................................ I O

Appendix

C

Eumple of

Ouality

Conformance

lnspectlon Raport ............................... . I I

Flgureo

Agu

re

4· 1 IPC-B-25A ..............................

..

.................. ...... 7

Agu

re

4·2 Tes1 Coupon wllh Y Shape Panem ........ ....... 7

Tablao

_. .. 3 1

Requirements

lo< Ouaiflcalion Quaillcalion

Retenlion

and

Ouality

Conlotmance

oi

Conlonnal

Coeting

........ _ ......_ . . 3

lllble

4-1

Teol

Veh(jes and

Sample

Saeo ......................... 6

lllble

4·2 Thid<ness Requlr.,.,...1s on Test Vehlcle ........... 7

October

2 8

---

ET IIOIIAAaaap m

MIOIMII NONt:IICIIW:

.

OU

M 0

~

Ç I W I I t l

.



Octoller 2008

Qualification and Performance of Electrical lnsulating

Compound

for

Printed

Wiring Assemblies

1 8COPI

1.1

Scope

This standard estabiishes qualifocntion and

confonnaoce requhements for clectrical insuloting com-

pounds (conformai coatings). lt has been designed and con·

structed wilh lhe intent of obtaining muimum confidcncc

in the materiais v.ith minimum test redund.ancy. This stan·

danl covm:

• The quahficllion and qualificarion n:tention of he confor

mai coating malerial (Table 3-1, Column A and 8).

•

The

quality

conformaoce

of conformai coating matenal

propcrties (Table

3-

1, Column C).

For lhe purpose of lhis standard, lhe tcrm confomoai coat

ing is used herein when referring to a typc of protcctive

couling for use Oll printed wiring a.« mbiies.

The

confor

mai

coating is intended to provide protection

rrom

mo isturc

and contnmination and provide electrical insulation:

not as

a

sole

source o f mcchanical support.

For the purposc of lhis standard. inspections are pcrfomled

011

Standardi7..ed le.St

vehiclcs instcad of reaJ produclion

asscmblies. A standardized test vchicle refcn. to the test

vchicle SpcCified per

test mcthod

indicated, coated with lhe

conformai coating under inspccrion.

1 .2

. . . . . ._ Witb slllndardized testing on standardol.Cd

test vehiclcs undcr tcst cooditioos specified on tcst

melhods

lostcd herein, this standard enables

a

manufacturer to

quaiify his conformai coating product and express lhe

qualificalion it possessos. This standard also cnabics the

manufacturcr to attcst lhe conformance of thc quality of

production to the qualification of ench product.

1.3 .1 T'fpeo Conformai coatings

sh a

ll

bc

categorit.ed

imo typcs by lhe cured chemistry of lhe ooating.

Thc

typc

for multifunctiooal materiais

shall

bc based on

lhe

chemis

try typc which

is the

higbesl pcrcentagc by weight.

Conformai coatings shaD bc of lhe following typcs:

1}'pc AR - Acrylic

1} pe ER - Epoxy

1}'pc SR - Silicone

1}'pe U R - Poiyurethane

1}'pc XY- Par:u.yiyiene

1.

www lpc,org

1.3.2 Clasoeo

Allhough previOtl5 vcrsions of IPC-CC-

830 madc rcfcrence to Ciass

A nnd

Ciass

8

coating classi

fications. thesc c lassifications hove bccn removed. To

bc

quaiified

lO

lhis specifica

t.i

on, a coating must bc hydrolyti

cally stable (formerly Class

8).

Non-hydrolytically stable

coatings (formerly Class A)

no

loogcr mcct lhe require

mcnts of tltis specification and usagc will only bc

As

Agreed 8etwttn

Uscr and

Suppher

(AABUS). Coatings

tbat

meet the

requirements ofClass

8

coaliogs in previous

document revisioos meet the requirements of tltis revisioo.

Note: Ea.rlier \•ersions of lhis spcclfication. as well as

other IPC documents. madc n:fcn:ncc to

C

iass 1,

Ciass

2,'' and Ciass 3 inspection and tesling requirements for

thesc classes that were not directiy correiated to tbc previ

ous Class A and B requi remcnts.

1 .4 lnterpretatlon ..ShaU, lhe impcr.uive fo

rm

of

lhe

verb.

is

uscd th roughout this standard whenever a require

mcnt is intended to express a provision that is mandatory.

Dcviation from a

s

hall" requiremcnt may bc considcrcd i f

sufficient data

is

suppiied to justify the cxce)ltion.

1bc words

should

and

may

tn: uscd whencver it is

noccssary

to

cxpress noomandatory provisoons.

W.U

is

uscd to express a dcclaratioo of purposc.

To assist lhe render, lhe word

sh

all" IS prescnted in bold

charactcrs.

2 APPUC

AB

LE DOCUMEHTS

Thc

following documents of

lhe

issuc currently in effect

form a part of lhis s tnndnrd to the cx tcnt spccificd hcrein.

2.1 IPC•

IPC.B·2SA Mu ltipurpose 1\lst Board

tPC-T·SO

Tenns

and Dcfinitions for lnterconnecting and

Packaging Elcctronic Circuits

T ~ S O Tcst Mclhods Manual'

2.4.5.1

2.5.7.1

2.6.1.1

2.6.3.4

Aexibitity

Oielectric Withstandon& Voltage - Polymeric

Conformai Coating

Fungus Rcsistancc- Conformai Coating

Moisture and ln•uiation ResisiJlnce • Conformai

Coaling

2. Cumtnt 1n11 retiiaed IPC Test Methc>dl ar 1hrough I )C..TM ·etiO tub.crlpUon and on lhe IPC Web aite (wt.W k>c,orQIMYIVIettmelhodt..htm .

~ . . . 1r •• ~ c . • -

...,.,.,., IHI....,...,...,..,ç

~

. . . . . . . . ._ floM IHS

O I W ~ ~ 1 7

. , _ _ , . , ~ $ ' A p l l ) ' l n i ~ · 8 N O N E I O N I E I O U ~ l ~ O O M M .

NG1 . . .

__....,JOI..ot.n11A6 11utC



IPC-CC-8308

Wltt l ~ t i G i d

IIOf••

t

2.6.7.1

Th

ennal Sllock - Confo

rm

ai

Coo tin

g

2.6.

11

.1 IJydrolytic Stability - Conformai Coaling

IPC-4101

Specification for Base Materiais for Rigid and

Multilayer Printed

Boards

IPC1012 Sectional Sundard for Qualificatioo of Rigid

Printed

Boards

MIL+460S8

lnsulating Compound, Electrical (For Coaling

Print.ed Circuit Assemblics)

MIL-STD-1188

Commercial Pnckaging

of

Sup

pl

iers and

Equipmenl

FEO.ST0-141 Paint. Vami<h. Ll<:quer

anel

Related Materi

ais:

Metbods

of

lnspection. Sampling anel Tcsting. Metbod

4061

anel

Metbod 2012

2.3 AIM<tc.. Soclety for T lng oi

er la l_ .

ASTM·D-1005

Measuremcnl

of

Dry Film Thickness of

Organic Coatings

ASTM·

D-1064

Viscosity of Adhcsives. Tests for

2.4

Undeiwolt.on

LaborM- . •

UL

94 Flammability

NCSL

Z540-1 Calibrnlion Laborntorics and Mcasuring and

Tcst Equipment

2.8 180'

ISO 10012-1 Quality Assurancc RcquiremenJS for Mcasur

ong Equipmcnt -

Part

l: Metrological Confinnation System

for Measuring Equipmcnt

3 AEQUIAEMEHTS

3.1 o r 8 1 Aequlrementa

3.1 .1

Tenna

anel

Deftnltlona

Dcfin

itions

of

temtinology

nppl icable to lhis standard

sh•ll

be in accordance wi th I

PC

T-50 and as stated in 3.1.1.1.

3. 1.1.1

AABUS

This is an acronym for

As

Agn:cd

Bet een User and Suppli.,.. lndicaiCS additional

or

alter

nate n:quin:ments

to

be

deeoded

bet,..ccn Jbe user

anel

sup-

3 . . _ .

. . . . _ . - . . . . . ~ '

W lllrfW

.

IIIrn.OfO

6. www.ul.com

e. www.ant

i

OfO

7.

www

.lto.QtO

October 2008

plicr in the

proc

·urement documentalion. Exarn

plc

s include

contmclunl rcquireme

nt

s, modiflcations to purchase docu

m c n t a t i o

and infonnntion on

1he

drawing. Agrcemems

can

bc

uscd to define test melhods. condWons. frcqucncies,

ca1cgories

or

acccptance criteria within a tcst. if not aln:ady

CS Jlbl

i<hcd.

3. 1.2

Conftlct lo Jbe e>enl of

a

conftict bet,..een lhe

n:quirements

of

this stan<lard and procurement documenl.

the procurement doeument shall Jlke pn:cedence. In the

evcnl of

a

conftict between lhe lcst parame1ers o f this sran

dard and lhe 1es1 me1hods, or a con nict bclwcen the

n:quircmcnts

in

this srandard nnd lhe ap

pli

cable documc

om

listed

in

Scctioo 2, lhis stnndard Shall take pn:cedcncc.

3.2

l . _ t l o n anel

Teotlng Aequlrementa Groups of

inspcction

anel

test

listed

in Tlble 3-1

s

ball

be pc:rfonned

10 verify Jbe abitity of 1 conformai coalong produet to mcct

the qualification andlor

confonnance

requirements o this

standard using lhe tesl mellto<b dcscribed herein.

3.2.1 Quallllcatlon lnapectlon anel Teatlng Qualilica

ti

on co this standard

is

achicvcd whcn a conformai

co

ating

producl meets lhe n:quireoncn1s li>lcd in Column A ofTable

3-1. TesJS sball be perfonned in accordancc wilh lhe tese

methods specified using

1est

specimcns pn:pan:d

in

compli

ancc with 4.6. A qualification onspectioo rcpon shall be

cornplcted in accordanec with 4.8 and relevant lest dali

n:taoned as substaotiatioo for the qualofication. Ao e.umple

or

qualific.ation inspection

report format

is

shown in

Appendix A.

Whcn

a

primer material is used

in co

njuction with

a

coat

ing ín qualifica

ti

on testing, thc prhner uscd will

bc

doeu·

mcnted

in

lhe qualification report.

Confonnal coatings pn:senlly qualified to MIL-1-46058

shall also be n:cogniLCd as mccting lhe n:quirements of

IPC

·CC

-830.

These

products

cuiTCnlly

qualílied

or

in

Jbe

proc:css

of being n:qualified to Mll.rl-46058 prior to

Jbe

publish date

of

this

documenr woll also

be

rccognized as

mccting lhe requirements

of

this document.

l i

should be

no1cd thal MIL-l-46058

is

inactive for new designs.

3.2.2 Quallftcatlon Aetentlon IMpectlon

and

Teetlng

Qualific.ation 10 lhis slanda

rd

con bc rctained when a con

fonnal coating product meets thc requiremenlS Jisted in

Column B ofTable 3-1.

Tesu

shall be períormed in accor

dancc with Jbe test methods speciflcd using test specimens

pn:pan:d in compliance with 4.6 at a fn:queney defined in

4.2.2.1. Pertínenr test results shall be compan:d wilh lhe

---

M O I M S S I A p o c t l 1 1 ~ O U I I 0

E i ~ O : : W l l l

Mil W

. . _ . ,M

0171

M t 4 ~ U T C



October 2008

Pwegraph Requ

irement Teet

Method

3.3.1

Mate<lals

Vlwal

3.3.2

Shelf Llfe

-

3.3.3

Cu

re

-

3.4.1

Fourier

Transfonn lnfrared

AABUS

Spectroscopy Test

FTIR)

3.5.1 osoosity ASTM 0-1084

3.52

AWearanee

Voeual

3.5.3

Auonlscence

VIII* unde<

uv

Ughl

3.5.4

FtMVJSResislance

IPC-TM-650

26

. 1 1

3.5.5

Aexibility

IPC-TM-650

2.4 .5. t

3.5.6 Aammability Ul84

HB

3.6.1 Oietectric Withstanding Vottage

IPC

·TM·650

2.5.7.1

3.7.1

Moisture and lnsulatlon IPC-TM•650

Resistance 2.6.3.4

3.7.2 Thermal

Shocl<

IPC-

TM-650

2.6.7.t

3.7.3

T e m p e ( = ~ n d

Humldlty

IPC

-TM-650

Aging ly1ic

Stability)

2.6.11. 1

results of lhe original qualifica1ion

1e51ing.

An inspcction

repor sball bc compleled in accordance wi1h 4 .8 ond rel

evonl test data

reuined

as

subslantiarion for the qualiflca

tion rctA:nuon. Ao

cxample

of

lhe

qualificauon

rctA:ntion

inspec:toon repon fonnat is sbown

in

Appendix 8.

3.2.3 Que

ll

ty

Conformanee ln•pectlon T

eetlng Thc

conmtcncy in

quality of a conformai cootina product is

verified when lhe requirements listcd

in

Column C of Table

3-1 lltC satisficd. Tests shall bc performcd

in

accordance

wiLh thc test methods

spec

ified using test

spccimens

prc·

parcd in oornpliance witll

4.6

at a frcqucncy dcflned in

4.2.3. 1. Pertincnt results

sha

ll be comparcd with thc ocsulls

or lhe original qualification testing. An ins:pc:ction rcpo11

shall bc completed in accordance wilh 4.8 and relevam tcst

data retained as substantiation for lhe qualily oonfonnance.

An example of quality conformance inspcc1ion repon is

shown

in

Appendix C.

Confonnal coating qualil)' conformance inspcction is gen

crally performed

by lhe

eoatiog

manufaaurer

.

but

may

wilh appropriatc agrecme01 bc

used

as an inconung mate-

rial inspcction procedun:

by lhe

custOmers.

3.2.4 AddltloNII Testing Additional tA:sting on diffcrcnt

tcst vehicles. a1 diJJerenl tesl frequcncy or conditions. or

for propcnics outside lhe scope of this standard may bc

ngreed upon belween lhe manufacltorers nnd Lhe custon>crs.

lt shüU

not

be used as a subslitute for nny tcsling requirc

ment spccified herein.

. . . . . . _ .. . . . . . . .

,..,_,......., .... l l l ; e l l w

I I C

N O ~ I I I I I · . . . . . . . .

_ _IHS

Coturnn

A

Column

8 Column C

n t l on oi

Quollty

OueUficetion

OuaiHicollon Conlonn.nce

X X X

X

X X X

X X

X X

X X X

X X X

X X

X

X X

X

X X

X

X

3.3 - •rl ls Requl..... .nta

3.3.1

-

The

confonnal

eoating materiais

sball

bc fn:c of delctcrious subslances.

3.3.2 -

L

ife

The

conformai eoaung

sball

mcc1 ali

requirements of tllis standard within thc shelf lifc and slor

age conditions specified by the conformai coating manufac

turer. Shelf l ife of cooting with

two

or more components

sball bc that of lhe componcnt with

lhe

shortest shelf life.

Tests to verify shelf life shall consi>t of lnsulation Resis

tnnce

IR) and Dielec1ric Wi lhstunding Voltage (DWV).

3.3.3 Cure

The

conformai couting sb a ll exhibit a li

desired propenies when applicd and cured using

lhc

proce

dures spccified by lhe conformai coatin& manufacturer.

Wben eoating matA:rials

are

tcstcd as s pccified, lhe coating

material shall be

cuml

to full hardness o lhe time and

tcmpcratwe recommended by the supplier.

3 .4 •1 Fourier Transform

ln f r . .d

Spectroscopy Test

FT1R) Fourier Transfom> lnfrared Spectroscopy (FTIR)

test

slta

U be perfonncd AABUS

as pan

of data galhcring

for the conformai

coa

ting during quaHOcation inspection.

Whcn

uscd in qualificat ion retention inspection, FTIR

3



IPC-CC-8308 with Ameodment 1

spectra sbaD

bc co

mpared lO lhose obtained du

ri

ng qualifi

ca

tion inspec

li

on. Absorp

ti

on peaks completely missing

or

addilional peaks sig1tify chan

ge

in chemislry prcscnl wilhin

thc

co

nfonnal

co

ating

pr

oduc

t.

A

ch

an

ge

in

che

mistry as

dctcclcd by

FflR

may or

onay

not constituto a product

changc.

Sce

4.3 for lhe definilion of product change.

3 5 Physlcal Requlrements

3. 5.1

Vlscoolty Viscosily

of

uncured

co

n

fo

rmai coating

materiais, excepl typc xy. sbaD

bc

oneasurcd per ASTM

0-1084 and the tcst conditions shaU

bc

defincd by lhe

coating manu facturer. Visoosity shall be measured as

pa

_t

of data gath

erin

g

fo

r the

co

nfo

nna

l coating during qualili

calion inspection. This viscosity data s

hall

bc uscd by l

he

manufacturer to pre-determ

ine

an acceptablc viscosity

range for quaHty confom1ance inspection.

3.5.2

Appearance Appcarancc of confonnal coatiog on

t

he

tesl ve

hi

cle specified herein shaU bc observcd visually

wilh lhe aid

of

a 3-diopter (app

rox

imatcly 1.75x) minimum

magnificalion. Referee inspections shall

he

accomplished

at IOx m

agn

i cmion.

Thc uncured confonnal coating materiais sball bc frcc

of

deleterious substances, bubbles. pinholes, whitish spots,

blistering.

wri

nkl

ing, cracking, and pee

li

ng.

"l'lle

cured con·

fonn

al coating s

ha be

smooth. homogenous, transparent

or

transluccnt. and t

ac

k-

free

wheo

observed at ambient

co

ndition

s.

In addition,

lhe

conformai

coati

ng on the test

vehicles shall have no bubblcs.

pi

nholes,

bl

islers. cracking,

crazing. peeling, wrinkles, mcaling.

or

evidence

of

rever

sion, or cause

a corTOsion.

3.5.3 Fluorucence Confonnal coating

ma

teriai s, except

type XY. s

baU

he

fluoreS<:ent

by ultra-violei illuminalion

(black light).

3.5

.4 Fungus Res.lstance

The

resistaoce o f the confor·

mal coating material to support

or

bc

altackcd by biologi·

e l growlh

shall

be

determincd in accordance with IPC

TM-650, Tcst Melhod 2.6.1.1.

The cured conformai coating s

ball

not contribute to or

he

au

ac

kcd by biological growlh.

3.6. 5 Fleldblllty Tin panels prepared in accordan

cc

wilh

FED-STD-14 1, Melhod 2012, s

hall he

u

se

d as tcst vchicles

for

fl

exibility tcsting. When lhe coated panels are tcsted in

accordan

cc

wilh IPC-TM-650, Test Method 2.4.5. 1, lhere

s

ball be

no evidence

of

cracking

or

crazing on the cured

confonnal coating.

3 . 5.8 Flammablllty Flamm ability tes ting

of

l

he

curcd

co

nfo

nn al

coating sbaD

bc

perfo

nn

ed in accordance wilh

lhe detailed requiremc

nt

s

of

UL 94 Hll (Hori1.0ntal B

um

ing Tesl) tesl melhods.

~ b ' l c o - c ( t ' O ~ ~

~

U I d l t ~ _ l f i

I C ~ O I ~ _ m n d ~ t o o m

Oc1ober 2008

Thc

curcd conformai coat

in

g shall meet UL

94 HB

H

ori-

7.0ntal

Buming Test) requirements:

a. Not h

ave

a bu

rni

ng rate excccding

40

mm [1.57 inj per

minute over a 75 mm [2.95 in) span for specimens hav

ing a thickness of 3.0 to 13 mm [0. 11

810 0.5

12 in ], or

b. Not have a burning rate excccding 75 mm (2.95 inj

pe

r

minute over a 75 mm [2.95 in) span for specimens hav

ing a lhickness less lhan 3.0 mm [0.118 in), or

c. Cease

to

bum before

e

100 mm [3.937 in) rcfcrcnce

mark.

3.6

Eleetrlcal Requlre

ments

3.8.1 Dleleetric Wlthstandlng Vol1age

(DWV)

Oiel

ec

lric

wi

lhstanding voltage of lhe cured conforma coaling sbaD

be measured in accordan

ce

wi th

IPC-TM-650, Tcst Melhod

2.5.7.

1.

There shall be no disruptivo dischargc cviden

ce

d by flash

ove r

s

urface discharge), sparkover (air dischnrge)

or

b

rcal<down

(pu

nc

lure discharge).

Th

e leakage rate sball not

cxc-ccd I

O

mieroamperes.

3.

7 Envfronmental

Requlrements

3.7 .1

Molsture

and

lnsutatlon Reslstance

The

confor

mai coating materiais shall

he

tested in ncco

rd

ance wilh

IPC-

TM

-650, Test Me

lh

od 2.6.3.4. Aftcr lhe

com

pletion of

lemperature and humidity

te.sti

ng cyclcs, lhe panels sbaU

be

mninlained

at the

reference conditions

al a te

mperatu

re

of

25

±

5

•c

[77 ± 9 •

FJ

and a relativc humid

it

y o f

50 ±

5 , for a period

of

24 hours.

The nlinimum insulation resistancc

sha be

5 MO for

typc ER and 5000 M

l

f

or

ali olher typcs during humidit

y,

af

tc

r humidity

and

one to

two

h

ou

rs at referencc condi

tion

s, and after

24 hours at

rcference conditions.

Appcaran

cc

s

ball

be assesscd

and

dielectric wi lhstanding

voltage s

ball

bc tested and meet t

he

requ irements as spcci

fied in 3.5.2 and 3.6. 1 respectively; after 24 hou

rs

at lhe

reference conditions.

3.7.2

Tbermal

Shock

Confonnal coating products s

hall

bc tcsted in accordan

ce

wilh IPC-TM-650. Tcst Method

2.6.7

I,

wi

th test conditions of -65

•c

(-85

•F)

lO 125

•c

(257

•F

], 100 cycles.

Aft

er

lhe lemperature

cyc

les are compleled, the coated

te.s

t

vehicles shall

be

maintained

at

the reference condi tions at

a temperature

of

25 ±

5

•c (77 ± 9 •FJ and a relativo

humidily

of 50 ±

5

fo

r a pcriod of 24 hours; alter which

ap

pcaran

cc

sbaD be assesscd and dielectric

wi

lhstanding

vo

llage

shall he tested and m

eel

lh

e

re

quiremen

ls

as speci·

fied in 3 .5.2 and 3.

6.1

respectively.

3.

7.3

TemperatiK8

and

Humldlty Aglng (Hydro ytlc

Sta-

bility)

Co

nformai coating products sbatl

be

tested in

accordance with IPC-TM-650, Te.st Mclhod 2.6.

11

. 1.



1l1C conlrol specimen sb.aiJ be mainlainc:d ti lhe n:fcn:nce

condilions ai 5

±

5

•c

[77

±

9 •F)

and 5 ±

S ll> n:lalive

humidily. 1l1C aged conformai coating sball be 1ack fn:e lo

1ouch.

Thcn: shall be no cvidcncc of soflening, chalking. blislcr

ing surfnce tock. cracking, l

oss

of adhesion or rcversion to

lhe liquid slale. The clarily

of

lhe conformai coaling musl

rcmain suitable

for

the viewing o iden

tifi

ca

ti

on markh18S

and eolor codcs used

10

idencify eomponen1s ovcr which

1he conformai coating is applied.

3.8 Speclal

Requi r em•-

Any special n:quin:mencs are

AABUS and shall be

f)()(ed

in lhe procun:mcnl documen

ladon.

4 QUALITY ASSURANCE PROVISION

4.1 Aeaponalbllity for lnapectlon Unlcss otherwisc

specified. tbc conformai coa1ing manufac1un:r is n:spon

siblc for ali lcsting n:quired

in

lhis scandard. Tcs1 facilities

ulili.r.cd musl be agreed upon by ali panies conccrned and

may be ose of the conforma] coating.

ma

nu fucturer

prinled board assembler,

w;er, or

otbcr mulually

tK:ccp

lablc

1cs1 laboratory or combinalion thereof. Thc user reserves

lhe righl

10

confirm thal any of lhe spec

ified

inspeclion

proccdure. and ICSI resulcs conform 10 lhe prcscribed

pnro-

graphs.

4.2 cat .gor i

of

l . _ u o n anel Frequency

4.2.1

OU.IIflcetlon

lnspeetion Qualifica1ion inspcctlon

allows

a

conformai coatiog maoufaclurer 10

asscss

lhe

pnapenoes of a conformai coating product on swod.vdited

lese

vchic:lcs using standardiled tcsl proccdun:s. Variation

10

thc qualified formulation may or

moy

nol imply a

change of producl,

and

may or may

f) )

be in<pected for

quolificolion as a

new

producl accordingly. Scc 4.3 for

dcfinilion

or

Product Chtmgc.

4.2.1 .1 Quelfflcatlon lnspectlon Frequency Conformai

coaci

ng

quaJillcation inspcction sball

be perfomlcd

oncc on

each confomlal coating

p r o d u c t

4.2..2 Quellftc8tlon Retentlon lnspectlon The qualifica

lion

of

a confonnal coating

product

can

be

n:tainc:d witb

lhe salisfactoon

of

qualifieation n:tention inspcction.

4·.2..2. 1 Quallc.atJon Retentlon lnspec-Uon Frequency

Conformai

coating

qualification retention inspection shall

be

performed once every 1wo ycaJS on cach confonnal

coating producl in order lo prove consis1ent compliance

10

thc original qualifocalion.

4.2.3 Quallty Conlormance lnopectlon Quolily con

formoncc inspection sball

be

performed in order 10 cxprcss

co

nsis1cn

cy

of

ona1erial properties and proccss con1rol.

Balches

of

conformai ooating material shall be inspccted

for compliance

10

lhe original n:quin:ments fulfilled during

qualification testing ata frequency 1dcquate to assure o n ~

tinuing performance. Quality

conf

ormonce inspection

shall

be int

eg

rated into stat:islicnl process

concrol

programs

or

olloer

qualily a.';.,ura.ncc progrnms

(e.g.,

ISO 9000).

4.2.3.1

Quallty

Conformance lnepectlon Frequency

Quality conformance inspeclion shall be performed for

every batch

of

confom•al coating product. A batch sbaU

consis1or ali conformai coa1ing ma1erials produced by one

continuous run. Baleh iden1ifica1ion is n:quired (see 5.3).

4

.3 Product

c.._ The following variatioos in lhe for·

mulatioo

of

a conformai coaung material origioally quali·

fied by

a

supplicr conStiiUtc a prodUCI ehangc and sb.aiJ

n:quire a oew name or prodUCI dcsignation. 1l1C cxtenl of

lhe

name

ehangc is

up

to the

supploer.

but

lhe

changc in

tbe

name

or

designation must

be

promoncntly displayed andlor

obvious to lhe customcr or cnd-user. Addilional qualifiea

tion of tbe changed conformai coalin&fonnu lation shall be

n:quired. Qualificntion rcsuhs

of

lhe original formula are

not to be assumed for lhe new formula:

• Changcs excccding ± 2 in the fonnula wcight

of

any

nonvolat ile

in

gredient

from

lhe ingrcdicnt's original for

mu

la

wcigltt

• Addition or eliminotion of any nonvolatilc ingredient.

• Changes in type or d)·e of pigment.

• Addition. dcletion or ehangc in composition

of ..

ncn··

materiais

in

lhe

formulalion.

1be following do not constilute a chanse in formulation

and do

oot. n:quire addllional quahfieation

of

lhe cbange.

bu1

do

n:quin: notification

of

lhe

cus1omer.

• Changes of lcss than

±

2% in thc formula wcight of any

nonvolatile ingrcdient from thc ingrcdicnfs original for

mula weight.

• Addition. eliminntion or chnngcs in any

vo

latile ingredi

cnt (solvent)

wi

th less lhnn I dricd weight o f residue in

tbe dried confonnal coa1ing (using rccoonmended drying

pnocedures).

• Changes in the ratio

of

sol id

.s 10

volatile for viscosity

adjustment.

4.4

Test Eq u i n t

anel

lnopecllon FacMitlea Tcst and

mcasuring oquipmcnt and onspcctoon facilitics shaU be

of

sullicieot accuracy, qualily and quanu1y to penni1

lhe

per

fonnaocc

of

n:quired inspcctoon and sb.aiJ

be

CW>blish<d

and

maintained by orbe accessoble

to

til coocemed parties.

The

establishment and maintcnance

of

a c:aJíbration sys&em

to control tbe accurncy

of

lhe measuring and 1e s1 equi >"

ment shall be

in

accordance

wi1h

ANSIINCSL Z54().1 or

ISO 10012-1.

4.4.1 Stanclard Looboratory Condltlona Tese measure

ments and condilions, unless

otJ1crwise

spccilied herein, or

~

............

._

Olclw

.._. . . 02022....,

* l r : t l l ~ U . I J 0 0 1 l 1 1 0 0 4 S i f · S i M O f i i : I Q M U ~ I * » > t M O O W I M

N o l t : r ~ 11•5 ,.vrc



IPC·CC-l 306 with Arnenánenl I

in

lhe

indi

vi

dual test method,

.sh adl be

mode

at te

mperature

of IS lo

5

•c

[59

lo 95 °F]. ni r pressure o f

650

lo

800 millimeters mercury

[0

.86

10

1.05 bar],

and

a maxi

mum relalive humidily

of

75 .

Whencver lhe test condi

lions musl

be

closely conuollod in order 10 oblain repro

duciblc rcsults

for

referee

purposcs.

tcmperawre, relath·c

humidity

8Jid atroOSplleric

]nSSUre conditions o f

25 :1: 3 OC

(77 :1:

5 4

"F). 40 to RH. and 630 to 800 millimctctS

mcrwry

[0.86 to 1.05 oor(. shaJJ

be

specifiod.

4.4 .2 Permi

b _ Temper•tuN VarfatJon In

En v

lron-

menUI

Chambers When

chamber$

are used, specimcn l

under test shall

be

locatod o

nl

y within

th

e working arca

de i

ncd

as

follows:

a..

Reference tempcraturc varin

tion

within

wo

rking arca:

The conuols for lhe

ohambers shall

be

capable

of

main·

laonong lhe tempera Urc

or

tny

single

rcference point

wolhin the worlcing arca wilhin

:1:

2 OC (:t

3.6

"F).

b. Spatial temperature varialion within working arca:

Charnhers shall be so constructod lhat, at

any

given

time. lhe tcmperawre of

any

poinl wilhin lhe worlcing

arca shall not devinte

mo

re lhnn 3

•c

[5.4 •F] from lhe

re rerence point,

cxcep

l for thc irnmediate vicinily o r

spec

imens generating heal.

4.4

.3

Aeferenc:e

Condltlona Rcference conditions

ns

a

base for

calculations shall

be 25 OC

177

°F] for

tempera

lurc.

761J

millimcters mcmory (1.01

bar)

of air

]nSSUte,

and

a rclati''e bumidity

of

4.

11

lnapoctlon

Routl-

lnspeclions sball be performod

in accordance with lesti

ng

rcquin:menls defined in 3.2

Jhcn:of. Tcst specimens shall bc prcpan:d in accordance

wilh 4.6 and subjcctcd 10 lhe 1>roccdure

of tcs

t melhods

lislcd

in

Table 3-1.

October 2008

4 .8 lnapection

SampUng

4.e .1

Teot

Vehlcles Test vehiclc lo

be

uscd shaU be in

aecordnncc

lO

specific test method

as

oullinc

in

Tablc 4-1.

A IPC-B-25A

Standard Tes1 8oard is

illustratod

in Figure

4-1.

Test pancm to be

usod shaU be

as

specifiod in

lest

mclhod.

Tcsl asscmblies for temperature

and

huntidity aging tcst

sh•ll be made wilh lhe

ba. C

mnterinl

in

aceordance wilh

IPC-4 10 1121, IPC

-4

10 1/24, IPC

-4

10 1/25 or IPC-4101126.

wilh lin plated

or solder

coatcd 17

~

copper " Y" shape

conductor.

as

illus lratod in Figure 4-2.

Test

assemblies

shaJJ contain two resist.ors. one with marking ink and one

wilh color code oors.

Glass plates lo

be usod

sh all be standard labor. tory

glass

plates

of S mm

x

SO mm

(1.97

in

x 1.97

in

minimum

si

te

e ~ l

slrips for ftammability lcsting s

hall

he 13

mm

[0.512

in

I

widc

by

130 mnt [5. 11

81

long

in ~ o r d a n c e

wilh

UL

94

specification.

Tin

pancls

sball

bc preJl'lred in occordance with FED-STD-

141, Mc1hod 2012.

4 .e.2 Sllmple Slze

The

minimum number of tcsl speci·

mcns shaU be as ouOinod

in

lloble 4-1, or il shaU be of

sufftetent quantity to achieve stallslical confidence rcquinxf

by

agreement between

cuslomer

and

supplier.

4

.e.3

Pre Niratlon PriO< to

Coatlng 1bc

prcpared

tcst

vchiclcs sh

aU

bc clcaned, hnndlcd nnd stored

so

lhnl,

at

lhe

time o f priming and/or coaling, th

cy

meet lhe cleanlincss

n:quin:menls of LPC-60 12 (scc 6.3 and 6.4).

Table

4-1

Test Vehlcleo

ond

Somple Slzes

p......,

THC to Run

3 52 Aj>pe8tance

3.5.3

' '* '

.6.4

Thlcl<n-

3.5.4 Fungus ReslsJanoe

3.5.5 Flexlblll )l

3.5.6

Flammablllty

3.6.1 llo4laetrlc Willlstanding Vollage

3.7

.1 Moislu<eand lntulalion Resistanc:e

3 72 Thermal

Slooek

3.7.3

Temperalure

erod Humldily Ag

i

ng

(Hydrolytlc

Stablhtv)

~ A ~ ~ . . . . . . . .

..........

HI_.......,_

-c

............... . . . . .

TM

VIsual

VIsual unc1e< IN

ASTM·D-1005

IPC·Th1·650

2.6.1.1

IPC·TM·650

2.4.5.1

UL94 HB

IPC·TM-e50

2.5.7.1

IPC-TM-e50

2.6.3.4

IPC-TM-650

2.6.7.1

IPC·

TM-650

2.

6.

1

1.1

Numbe<ol

est

s.,..,-

Glass Plote'

4 ooated,

1

oocoated

Glass Plale 4

coa

ted

Tln Pane

l 4 coaled

UL94 Test

Str1p

20 ooaled

IPC·t3-25A

5 ooated

Test

Board

IPC-8·25A 4 coated.

Tes tlloatd I o.ncoatad

IPC-8-25A

5 ooated

Test

Boatd

Y '

Shape

Tesl Assembly

5 coatad

( l as eonlrol)





IPC-CC-8306 wit11 Ameum"" I

shall be of a corrosion resistant nuucriaJ that wiJJ not reoct.

dclcriorate

or

affoct lhe qunlily

of

lhe

co

nfonnnl COaling

producl being packaged. Whcn

a co

nfomtal coating prod

uct consist of more than onc componcnt.

each

comp >nent

s

haU be individually fumished

in

sufficien1 quantities

nee-

CSS I)I 10 neact

wilb

lhe

other

and

un arnowu 10 be

11101

spccificd

in

lhe purchase

onlcr

.

5.2

PacUglng Preservation, packing

aod

marking

shall

be in accordance wi

1h

MIL-ST0-1188.

5.3 Mar1úng Tbe following mnrkings

are

required:

o. Manufac.turer's pan numbcr

b. Manufacturer's lot or batch numbcr

c .

Namc of

manufactun::r

d. Dale of manufacture

e. E.piration dale

f. Prc<:autionary baodling

8 NOntS

8.1

Order

Data 11

is recommcndcd

lha

lhe following

informalion be spec

if i

ed in procurcmcnt documcnts:

a. 1'itlc. number

and

dale o f lhis s landord; 1ypc (scc

1.3.1)

and

c lass (see

1.3.2) of

ma1crial conlllincd

in lhe

pack

age

b.

Solvcnl compatibilily infonnalion

c.

Spccial packing inS<ructions i f requircd

d. Sizc

of

containers

c. Quontity

of

material rcquired

f.

Other .special instructioni

e 2

Formuletlon Change

h

is imp011ant

that

the proper·

tics

of conforma i coating

material

rcmain co n

sistenl

throughout lhe life

of

the producl. Small changes

in

che

composition

of lhe

macerial may havc dramatic cffeccs

upon

c:enaio

properties

(

such as

Harnmability, adbesions.

etc.) and

hence

behaviors of lhe

prodUC1

during lhe appli

cation process and

in e:nd

use env1ronment.

Compat.ibifiry

or confonnal coating

with

associ tucd materiais can orten

be

n scnsitive issue. Thercfon:.

it

is

impo

rtant that fonnulation

co n

siste

ncy be maintaillCd and uscrs be infonned whcn any

changc has

bccn

made.

8.3

Condltloning h

i<

recommcndcd lbat lhe cest boards

be bakcd at

121 OC

[249.8

' P) for

minimum

one

bour, bul

no

more lban four hours. prior 10

roatiog

.

is

also sug

gesccd lbat

lhe

cnvironmenl

in

hich

lhe

confonnal eoating

•s

applicd should

be

clean. Monicorin& of relativc hwnidicy.

temperature

aod

panicle counls

CIUUres

a better-coaled

asscmbly.

8.4

Cleanllnea

11 is

of

parnmount imponance thal

the

ICSl

vchiclc be thoroughly cleancd prior 10 confonnal coai-

ing application. A ..

dirty

. test vchicle will decrease valucs

for dielectric withstanding voltoge. insulation resistancc.

and will advcrse

ly impact adhe.sion. An

unclcan

1cst

vehiclc cannot yield

an

accunnc evaluation of thc

oo

nfor

mal ooating material.

e.e - lbe levei of

adhesoon becwccn confonnal

eoatings

and

subSlraleS varies greatly. Among

lhe

factors

which inHucncc adhesion

are soldenng prooedures,

primcr

and/or coating application, curina process, chemistry

or

conformai coaling. sol

der

mask. flu•

ond

cleaning

agent

(if

uny).

Some

npp li

cations require

hi gh -lcvcl

adhesion; others

dcs ire easy remova

of

eonfonnal coating from lhe coalc

dasscmbly

.

Tbe

k

ey

10 chc dcccrminalion

of adhesion

rcquircmcnt is an agreement between manufacturc:r/

osscrnbler or asscmbler/uscr or conformai

coating

, sup

poncd

by adcquale underscandona of subsequenl manufac

luring

processes aod cnd use

environments.

Thc adhesion tese

used

shall bc

agrccd upon lhe

manufacturcr/asscmbler

or

assemblcr/u.ser

of

conformai

coa

ting.

A

scondord painl 1

ypc

cape lese may

be

used for

some coated printed wiring assemblies. Alte

mate

methods,

such as temperature andlor humidity cycling etc

•

may

be

employcd.

n.e

applicabilily of 1es1 result

sball be

decer

mincd

by lhe user.

e.e

- CompatlbllltY

n.e

compatibilicy

of

a

confor

mai coating

prodUC1

wilh

sohenc

s may be evaiW Icd to

avoid

potencial degradacion of conformai

coating and

coatcd printcd wiring assemblics in subsequenc manufac

turing processes or end use cnviro

nm

cnts.

Dcscribed

below is a

recommcnded procedurc for lhe

cvalua

Lion

o f

solvcnl

compmibil

it

y

of

a conformai

coa

ting

prodUCI.

L

lmmcr-se a coatcd specimen

in lhe

sol>ent

ac 25

±

OC

[77

±

9

°FJ

for cwo minut

es

b. Remove

lhe

coalcd specimen

fron1

solvenL air dricd for

lO minutes at arnbicnl laboratory conditions.

c.

Ovcn

bake

lhe

coaced spccimcn for

30

minutes nt

65

±

3 •c tt47 ± sA •FJ.

d . Cool lo room lempcralurc.

e . Examine coated spccimen for evidence of surfacc tack,

blislering, dilation ond color change.

8.7

- o

..._

Conform8l CoM-

Inga

is

recommendcd lhac solvent sensitivo conformai

coating be identilicd on lhe coaled prinled wiring assem

blies

by

using labels.

bar rodes,

color-coding. ecc.

Tbis

will

provide usefu

l

cautionnry

information for

s

ubscqu

ent

manufacturing processes

a

ndl

or cnd

use

app

l icacions.

which mighl otherwise in

cur

solve m incornpatibiJity.



Appe.ndix A Example

of

Qualification lnspectlon Report

ManufactuNr•a ldentificetion:

lnapection Comptetlon

ON

:

Product ldentffication:

Conformai Coating type:

CureType:

A ptlmet' W UMd in conjunction with thla prodl.td durt"9 qualific ation

tnting

[ I Yoo

I

No

Primo<UMd:

Teat

Foorter Transform

lnfrared

Spectrosoopy Tesl FTIRJ

Vlocoeliy

Appearance

Fluo<-.co

Funguo

ReoiSWlC

F1e>ábol4y

Flammalliüty

Dielecttlc Wl1holanding Vottage

Mol

st

ure and lnsulation

Reslstanco

Thermal Shock

Temperature

and

Humidity Aging

I n ~ condue1ed by:

~ ~ ~ ( . . . , . . . . . . . . . . , .

. . . ..br ,..,llolo M..,...IIIC

- ~ . , . . . . _ . _ . , . . , . . . . . . . . . . . . , . . , . _ ' I H I

ov.rau

Ouallllcatlon

R o ~ J l t s

I

Pooo I Fllil

lndivk t·uallnapectlon and TMt Rftuhs

Too1 Method

AABUS

ASTM D-t084

Vloual

V 1$Ual

under UV

I P C - T M ~

2.6.1.1

I P C - T M ~

2.4.5.1

UL84 HB

IPC·T

M-650

2.5.7.1

IPC·TM·650

2.6.3.4

IPC·TM·650

2.6.7.1

IPC·TM·650

2.8.11.1

P a r ~ r a p h in

IPC. C-8308

RMuttl Romoru

3.4. 1

Spectrum

to

be retalnod for

future

reference

Measurement tobe recordod

3.5. 1 for future refer

enee.

I NIA type xy)

3.52

Pass

I F

ai

l

3.5.3

I Pass

I

I NIA type xy)

I

I Fail

3.5.4

I

I Pass

I

I Fal

35 5

I

I Pass

I

I

Fal

3.5.6

IPass

I

Fal

3.6.1

IPass

I Fali

]

Pass 500

MO

minimum

3.7. 1 1Pass 5000

MO

mlnlmum

I Fali

3.7.2

IPass

I Fail

I

I Pass

3.7.3

I

I

Not

Tasted

I

I Fail

O I W I ~ ~ 1

e W I O

I E T A O I I A A S 5 ' A { 7 1 » 1 n i ~ · I I W O H E I O N C I . O U ~ 1 ~ 0 0 M M ,

HCIIIIW -.._. ....v 6 ~ 1 ·

VTC:

9



IPCCC-8308 h

.

*' . 1

Oc1ober

2008

Appendix B Example

of

Quallflcatlon Retentlon lnspectlon Report

M

anvtacb.1....-•e

tct.ntlfJcltion:

Product

ldendfk:atlon:

Orlg1no1 Ouollflcotlon Dote:

Tut

Fourier Translo<m lnlrared

Spec1roscopy

Tesi(FTlR)

Appoarance

Fluorucence

Molsturo

onc1

lnsutalion

R nce

l n ~ i o n

Compfetion Date:

Confo

rmei Coating Type: Curo Type:

Lati OuoiKicotlon Retondon Dole:

OYeroU OU.Hflc:odon Relendon Resulto

I

Puo

I

I

Foi1

lndtvlduol lnopectlon

ond

T0.1 Resulto

TH I - hod

AABUS

Visual

Visual undor UV

I P C T ~

2.

6.3

.4

P w ~ r o p h

in

IPC C 8308

- ·

Remarka

peçtrum

10 be compared

with

that

from the original

3.4.1 qualificadon 1

es1

I

)Pass

I

IF a

i l

3.5.2

I

IPass

I

IFail

3.5.3

I

IPass

I

I NIA

1ypo

xy

[

I

Fail

I

I Pass

500

MO

minimum

3.7.1

I

I Pass 5000

MO mk murn

I

I

Fail

O ólt,.....,

020226f7

Nl1 f

l'nfl08ltA Il417001f1,oo-

1 ~ 1 0 U I I • liM()PU\1 OQI,t 811 ,

Not ~ . . . . . v

~ t iUTt



Appendix

C Example of

Quality Conformance

lnspectlon

Report

Manufacturer•a

ldtntHication

:

lnspection Compledon 08te:

Batch

d e n U f l e ~ ~ t i o n : Product ldentlrlcetlon: Conformtt Coating Type:

cu Type:

Orlglnol Ouollfation Dote:

Laet COnfonnence lnapection Date:

•••

Vll<lollity

Appoaranoo

·

lnopoetlon cond...-..cl

by:

Lut

OUIIIflc:oUon Rotontlon Doto:

Ovonon OU.Ifty Conformonco Rooults

Pooo

1Foll

fndlvktual lnapec1ion and Test Reeutta

TeatMithod

ASTM D-1084

Visual

VISUal under

UV

P e l ~ t e p h fn

IPC C-8308 Reautta Remarka

3.5.1

I Pass I N/A typo xy)

I

Fa

li

3.5.2

IPass

I

I Fail

3.5.3

1

Pass

I N/A IYIMI

XY)

I I Fali

O f d t t ~ ~

DI 'ETAAOIAAS

.....poo111100f. IJ•SNOMUONI:t:l U ~ . . . . _ . O O M 11\.

, . , .

b - .201.. . . .V 1 .

l lC

l l



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Form

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Qualification and Performance of Eletrical

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