OGP1 PINTURA.pdf

General Specification for Shop Priming and Painting

25713-220-3PS-NX00-00002-000

Electronic documents, once printed, are uncontrolled and may become outdated. Refer to the electronic documents in stoBHPHub of Infoworks for current revisions.

Bechtel Confidential Bechtel 2011. Contains confidential and/or information proprietary to Bechtel and its affiliated companies which shall not be used, disclosed or reproduced in any format by any non-Bechtel party without Bechtels prior written permission. All rights

reserved. Use of this deliverable is subject to restrictions set forth in the contract

Page 2 of 19

TABLE OF CONTENTS

Section Description Page 1.0 SCOPE 3

2.0 QUALITY STANDARDS 4

3.0 SUBMITTALS 5

4.0 PAINT MATERIALS 6

5.0 SURFACE PREPARATION 8

6.0 PAINT APPLICATION, GALVANIZING, AND INSPECTION 10

7.0 COATING SCHEDULE 12

8.0 TOUCH-UP WORK 16

9.0 FINISHED PAINTING COLORS 16


25713-220-3PS-NX00-00002-000




Page 3 of 19

1 SCOPE

1.1 This specification covers the minimum requirements for shop priming and painting

for the different areas within the project. Its scope covers the surface preparation, priming, and painting of engineered equipment, structural steel and shop fabricated piping.

The terms "Shop Priming" and "Painting" define the extent of the SELLER's

painting responsibility prior to his release of the equipment to the BUYER. The term "shop" does not limit the work location to the SELLER's shop, since the work may be performed at a subcontractor's or supplier's facility under the SELLER's shop control. However, this specification does not apply to field painting at the jobsite.

1.2 The following surfaces shall be prepared and painted by SELLER in accordance

with the Coating Schedule (section 7.0 of this Specification), unless otherwise noted:

1.2.1 Structural and miscellaneous steel items, including ladders, platforms,

handrails, grating, beams, columns, stairs, clips, brackets and supports.

1.2.2 Exterior surfaces of carbon-steel tanks, vessels, platework, exposed ductwork, apparatus and piping unless noted below.

1.2.3 In general, all exposed non-machined surfaces of carbon steel or cast iron.

1.2.4 Machinery, motors, electrical and control panels, valves and equipment.

1.3 Machinery, motors, electrical and control panels, valves, instruments, and

equipment may be prepared and painted according to Manufacturer's standard procedures, if those procedures provide a coating system suitable for the intended service conditions, as determined by BUYER.

1.4 The following surfaces shall not be painted:

1.4.1 Nonferrous metal such as: aluminum, copper, or brass.

1.4.2 Stainless or alloy steel, except under thermal insulation. 1.4.3 Glass, tile or ceramic surfaces. 1.4.4 Valve stems, rods, rotating shafts or other machined contact surfaces

1.4.5 Inside surfaces of chutes, hoppers, launders, vessels, apparatus and piping

except where specified.


25713-220-3PS-NX00-00002-000




Page 4 of 19

1.4.6 Inside surfaces of carbon steel process tanks, except those specified in

data sheets. 1.4.7 Galvanized surfaces. 1.4.8 Areas within 2 in. of surfaces to be welded after coating. 1.4.9 Nameplates.

1.4.10 Non jacketed elastomer insulation.

1.4.11 Pipe

1.5 All surfaces not being painted as listed in the preceding paragraph shall be kept entirely free of paint and protected from damage during surface preparation and painting operations.

2 QUALITY STANDARDS

2.1 The quality of items and services shall meet the requirements of this specification,

the applicable codes and standards, and project procurement documents. If these requirements conflict with SELLERs normal procedures, the former shall govern.

2.2 The galvanizing applicator shall be a galvanizing specialist with experience in the

application of zinc coatings by the hot-dip method. The work shall result in galvanized surfaces free of blisters, bare spots, flux, ash inclusions, and other evidence of poor workmanship.

2.3 Final surface preparation, painting and zinc coating applications shall be in

accordance with the issue of the following codes and standards, unless otherwise agreed to by BUYER.

SSPC-AB-1 Mineral and Slag Abrasives SSPC-SP-1 Solvent Cleaning SSPC-SP-3 Power Tool Cleaning SSPC-SP-5 White Metal Blast Cleaning SSPC-SP-6 Commercial Blast Cleaning SSPC-SP-8 Pickling SSPC-SP-10 Near White Blast Cleaning


25713-220-3PS-NX00-00002-000




Page 5 of 19

SSPC-SP-11 Power Tool Cleaning to Bare Metal SSPC-PA-2 Measurement of Dry Coating Thickness with Magnetic Gages SSPC-VIS-1 Guide and Reference Photographs for Steel Surfaces

Prepared by Dry Abrasive Blast Cleaning

ASTM A123 Specification for Zinc (Hot dipped Galvanized) Coatings on Iron and Steel products

ASTM A153 Standard Specification for Zinc Coating (Hot-dip) on Iron and

Steel Hardware ASTM A385 Standard Practice for Providing High Quality Zinc Coatings

(Hot-Dip) ASTM A563 Standard Specification Carbon and Alloy Steel Nuts ASTM B6 Specification for Zinc ASTM D4417 Standard Test Methods for Field Measurement of Surface

Profile of Blast Cleaned Steel ASTM D4285 Standard Test Method for Indicating Oil or Water in

Compressed Air ASTM E337 Standard Test Method for Measuring humidity with a

Psychrometer (the Measurement of Wet and Dry-bulb Temperatures)

3 SUBMITTALS

3.1 SELLER shall identify the specific products by manufacturer and catalog number

and submit written procedures with the manufacturers latest published data sheets, application instructions, and Material Safety Data Sheets (MSDS) attached.

3.2 SELLER's written procedures shall include provisions for storage, handling,

surface preparation, environmental control, application, touch-up and repair, curing, and inspection of the coating system. These procedures shall be submitted for BUYER's review and permission to proceed prior to use. Conflicts, if any, between the coating manufacturer's recommendations and this specification shall be brought to the attention of the BUYER for resolution.

3.3 If the equipment or component supplier proposes a manufacturers standard

coating system in lieu of the specified system, SELLER shall submit details of the


25713-220-3PS-NX00-00002-000




Page 6 of 19

proposed system as required in paragraphs 3.1 and 3.2, above. As a minimum, the surface preparation and application of the proposed system shall be in accordance with the coating manufacturers latest published instructions.

4 PAINT MATERIALS

4.1 The paint material shall be delivered to the applicator in the manufacturer's original

containers bearing the manufacturer's name, brand number, batch number, shelf life expiration date, and date of manufacture.

4.2 Paint materials shall be stored in accordance with the manufacturer's latest

published instructions and shall be protected from damage, moisture, direct sunlight and temperatures below 4oC (40F) and above 38oC (100F), or as directed by the manufacturer's instructions, whichever is more stringent.

4.3 Paint materials shall be used within 12 months of their manufacture and in no case

shall be used after the manufacturer's recommended shelf life. 4.4 The following inorganic zinc primers are approved for use as specified in Section

7.0, Coating Schedule:

Manufacturer Product Ameron Dimetcote 9 Carboline Carbozinc 11 HS Valspar MZ7 (V13F12) Sherwin Williams Sherwin Williams Zinc Clad II Hs Ceresita Cerezinc Z-85 Vinylguard SG 88

In any case all products (above mentioned and alternative) shall comply with the following requirements: Minimum dry film of Zinc.80 % Adhesion according to ASTM D4541500 psi minimum Salt spray (fog) according to ASTM B1173 500 h Temperature resistance..400 C Abrasion resistance ASTM D4040 (1kg load/1000 cycles CS-17 wheel).30 mg

4.5 All coatings applied to any one surface or piece of equipment shall be products of a

single manufacturer. 4.6 Where finish painting is required for tanks, platework or miscellaneous

shop-fabricated items, the following paints are approved as touch up (TU),


25713-220-3PS-NX00-00002-000




Page 7 of 19

intermediate coat (IC) and finish coat (FC) for application over their corresponding primer as listed in paragraph 4.4 of this Section.

Manufacturer Designation Product

Ameron T-U Amercoat 68HS Zinc Rich Epoxy

IC & FC Amercoat 385 Epoxy FC Amercoat 450 HS Urethane

Carboline TU Carboline 858 Zinc

Rich Epoxy IC & FC Carboline 893 Epoxy

FC Carboline 134 HS Urethane

Valspar TU Valspar 13F4 Zinc Rich Epoxy. IC & FC Val-Chem V89 Series Epoxy FC V-Thane 54 Series Urethane Sherwin Williams TU Iponzinc 331 250

IC&FC Esmalte Macropoxy 646 FC Poly-Lon 1900

Ceresita TU Zinc Rich Epoxy Cersa E-23 IC&FC Ceremastic 2000 FC Acrypol Cersa P-70 IC&FC Vinylguard SG 88 Refer to coating classes A-2 and A-3 (Section. 7.2 of this Specification) for the conditions of service under which the above paints can be used. For intermediate and finish coats, products shall comply with the following: Performance Test Epoxy Adhesion according to ASTM D4541....... 900 psi Salt spray fog according to ASTM B117...3 000 h Humidity ASTM D2247 Non face corrosion, blistering...750 hrs Abrasion resistance ASTM D4040 (1kg load/1000 cycles CS-17 wheel).weight loss 102 mg Performance Test Polyurethane Abrasion resistance ASTM D4040 (1kg load/1000 cycles CS-17 wheel): No more than 57 mg, average loss QUV weathering ASTM G-154, no blistering, cracking or delamination of film after 100 hrs: 90% gloss retention after 1000 hrs Salt spray fog according to ASTM B117: 1000 hrs


25713-220-3PS-NX00-00002-000




Page 8 of 19

4.7 Products equivalent to those specified may be substituted on receipt of prior written

permission from the BUYER. The manufacturer's product data and application instructions shall be submitted with the permission request for each proposed substitute material.

4.8 The zinc used for the galvanizing bath shall conform to ASTM B6 and shall at least

be equal to the grade designated as Prime Western. The galvanizing bath shall contain not less than 98.0% Zinc by weight. Galvanized surfaces shall be touched up with Zinc Rich Epoxy primer.

4.9 Abrasives for blast cleaning shall be sharp, angular, clean, dry and free of oil or

contaminants. The particle size shall be capable of producing the specified surface profile. Mineral and slag abrasives shall meet the requirements of SSPC AB 1. Cast iron or malleable iron shot shall not be used. Chilled iron shot may be used in a mixture with steel grit. Recalculated shot and grit may be used. Recycled sand shall not be used.

5 SURFACE PREPARATION

5.1 Steel surfaces to be painted shall be prepared in accordance with the Steel

Structures Painting Council (SSPC) Specifications as specified in the Coating Schedule in Section 7.0 of this Specification.

5.2 All surfaces shall be free of surface moisture, dust, oil, grease, salts, weld flux and

spatter, mill scale, rust, loose paint or other contaminants when paint is applied. 5.3 Where abrasive blast cleaning is specified, prepared surfaces shall be painted

before any visible rusting or other deterioration of the surface occurs. Abrasive blast cleaning shall not be permitted when surfaces are less than 3C (5F) above dew point, or when the relative humidity is greater than 90%.

5.4 Abrasives used for blast cleaning shall be clean, dry and free of oil or other

contaminants. The particle size shall be capable of producing the specified anchor profile. Recycled sand and cast iron or malleable iron shot shall not be used.

5.5 Surface profile shall be measured in accordance with the requirements of ASTM D4417.

5.6 Sharp edges (90) shall be chamfered, broken or radiused to produce a smooth

rounded contour. Weld defects shall be repaired before cleaning or coating. Weld spatter shall be removed and welds rounded or contoured to obtain a smooth radius.

5.7 Prior to abrasive blast cleaning, oil, grease and other contaminants shall be

removed by solvent cleaning in accordance with SSPC-SP-1.


25713-220-3PS-NX00-00002-000




Page 9 of 19

5.8 Burrs, slivers, scabs and weld spatter visible after blast cleaning shall be removed, and repaired areas shall be re-blasted to specification.

5.9 If rusting occurs or if cleaned surfaces become wet or otherwise contaminated prior

to linings, they shall be re-cleaned to the degree specified. 5.10 The compressed air system used to prepare the substrate and apply coating

materials shall be as follows:

5.10.1 Air supply lines shall be equipped with effective traps to remove moisture and oil.

5.10.2 Prior to using compressed air, the quality of the air downstream of the

separator shall be tested by blowing the air onto a clean white blotter or cloth for two minutes, in accordance with the requirements of ASTM D4285, to check for any contamination, oil, or moisture. This test shall be performed at the beginning and end of each shift and at not less than four-hour intervals. The test also shall be made after any interruption of the air compressor operation or as required by the BUYER. The air shall be used only if the test indicates no visible contamination, oil, or moisture. If contaminants are evident, the equipment deficiencies shall be corrected and the air stream shall be re-tested. Separators shall be bled continuously. All lines shall be tested individually prior to use.

5.10.3 Surfaces which are determined to have been blasted or blown down with

contaminated air shall be re-blasted with clean air and abrasive. Linings which are determined to have been applied using contaminated air shall be removed and new lining applied using clean air.

5.11 Surfaces to be galvanized shall be prepared as follows:

5.11.1 Prior to galvanizing, all mating surfaces shall be seal welded and all holes

shall be oversized by 1.6 mm (1/16 in). Hot-dipped galvanized nuts shall be tapped oversize in accordance with ASTM A563, except that the maximum over-tapping shall not exceed 20% of the minimum over-tapping. Galvanized nuts shall be lubricated in accordance with ASTM A563.

5.11.2 Surfaces to be hot-dip galvanized shall be pickled to meet the requirements

of SSPC-SP-8 or abrasive blast cleaned to meet the requirements of SSPC-SP-10.

5.11.3 Pickled surfaces shall be allowed to dry after the final rinse prior to hot dip

galvanizing.


25713-220-3PS-NX00-00002-000




Page 10 of 19

6 PAINT APPLICATION, GALVANIZING, AND INSPECTION

6.1 The first coat shall be applied by spray. Where practical, all other coats of paint

shall be spray applied also. The minimum and maximum curing time between coats shall be in accordance with the coating manufacturer's latest published instructions.

6.2 Paint shall be applied only within the following temperature and relative humidity

limits:

Material Air Surface Dew Point Relativity Humidity Inorganic 4-35oC 4-35oC At least 40-90% zinc primer (40-95F) (40-95F) 3oC (5F) below Surface Temp. Epoxy and 10-35oC 10-35oC At least 80% Urethane (50-95F) (50-95F) 3oC (5F) Maximum intermediate, below touch-up and Surface

finish coats Temp. Acrylic vinyl 4-40C 4-40C At least (40-100F) (40-100F) 3oC (5F)

below Surface Temp.

Manufacturers standard paints: Acceptable conditions as established by paint manufacturers.

6.3 All paint shall be mixed, thinned, applied and cured in accordance with the manufacturer's latest published instructions. In case of conflict between this specification and the manufacturer's instructions, BUYER shall determine which procedure to follow.

6.4 Each component shall be mixed separately prior to mixing of combined materials.

Only complete, pre-measured units shall be mixed. After straining, mixed material shall be agitated to keep solids in suspension. Mixed material shall be applied within the manufacturer's latest published pot life time.

6.5 Coatings shall not be applied when there is moisture on the surface or where

airborne dust can contaminate the freshly coated surface. 6.6 Erection markings shall be applied only after the coating has cured hard.


25713-220-3PS-NX00-00002-000




Page 11 of 19

6.7 The paint shall be applied at the dry film thickness (DFT) specified in the Coating

Schedule, Section 7.0 of this specification. The dry film thickness shall be measured with a Mikrotest FIM/102 or approved equivalent, in accordance with SSPC-PA-2.

6.8 Galvanizing

6.8.1 Galvanizing shall be performed only after the section to be galvanized is completely assembled. Assembly of sections to be galvanized shall be to the largest section that can be hot-dip galvanized. Components of bolted assemblies shall be galvanized separately. Edges requiring field welding shall be protected from galvanizing for a distance for 25 mm (1 in) from the edge.

6.8.2 Precautions outlined in ASTM D385 to obtain high quality galvanized

coatings shall be observed. It shall be SELLERs responsibility to safeguard against embrittlement and warpage. Potential problems that require a design modification shall be brought to BUYERs attention before proceeding.

6.8.3 Steel surfaces other than bolts, nuts, and washers, shall be hot dipped

galvanized in accordance with ASTM A123 to obtain a minimum of 1.0 oz of zinc on each galvanized surface. This will provide a draft film thickness of 43 microns (1.7 mils) for the zinc coating.

6.8.4 Nuts, bolts, washers, and miscellaneous steel hardware shall be hot dip

galvanized in accordance with ASTM A153. Female threaded openings shall be re-tapped after galvanizing. Bolts and other items with male threads shall not be re-tapped.

6.8.5 Fabricated assemblies shall be totally immersed in the zinc bath. Dipping

of assemblies in more than one operation is not allowed. 6.8.6 Zinc coatings shall be free of voids, blisters, flux spots, inclusions, dross,

acid, and black spots. The zinc shall be well adhered to the steel so that it may not be removed during normal handling and erection activities. Lumps, globules, or heavy deposits of zinc that could interfere with the assembly operation or the parts intended use are not allowed.

6.9 Coatings, other than galvanizing, shall be free of runs, sags, voids, drips, over-

spray, loss of adhesion, blistering, peeling, flaking, mud cracking, or inadequate cure. Defects shall be corrected as they are detected during applications.

6.10 Inorganic zinc prime coats shall be tested for hardness and adequate cure by the

following method. After the primer has been allowed to cure for re-coating in accordance with the manufacturer's latest published instructions, the surface of the primer shall be scratched with the edge of a coin held at an approximate 60 to 70o


25713-220-3PS-NX00-00002-000




Page 12 of 19

angle to the surface, using moderate force. When properly cured, the inorganic zinc primer shall show a metallic sheen where the surface was scratched and no more than a very small amount of zinc powder shall be removed from the coated surface.

6.11 Coated and galvanized items shall be stored off the ground and protected from

damage during lifting or handling. Non-abrasive supports shall be used for shipment and storage.

6.12 SELLER shall furnish ample materials for touch up and repair of shop coats (by

others) after field erection. Coating materials used for touch up and repair shall be the same as those originally applied, unless otherwise noted.

6.13 All painted surfaces, shall be cured, hard and dry before placing in storage

stacking or shipping to jobsite. 6.14 Electrical holiday inspection shall be done using a low voltage, non destructive, wet

sponge detector such as the Tinkor and Rasor M-1 Holiday Detector. Inspection shall be performed at individual spots selected as being representative to the finish coating work. The spots selected shall include welds, corners, sharp edges and flat areas.

Defects disclosed by the preceding tests and inspection shall be repaired and retested

7 COATING SCHEDULE

(Refer to Table 1)

7.1 The surface preparation and paint to be applied are dependent upon the service conditions and protection required, and shall be as specified here-under. Each coating has to be painted of different color to allow an easy inspection of the layers application.

7.2 The following coating classes shall apply to uninsulated surfaces with up to 93oC

(200F) operating temperature:

7.2.1 Coating Class A-1: Surface Preparation: Near White Blast Cleaning SSPC-SP-10. Anchor

profile 25 to 75 microns (1 to 3 mils) as measured with Keane-Tator profile comparator, or Testex Press-o-Film Replica Tape.

Prime Coat: Inorganic zinc primer, 75 to 130 microns (3 to 5.0 mils) dry film

thickness.


25713-220-3PS-NX00-00002-000




Page 13 of 19

Touch-up: Surface preparation to be SSPC-SP-10 or SSPC-SP-11. Same inorganic zinc and dry film thickness as prime coat. Finish Coat(s): None.

7.2.2 Coating Class A-2: Surface Preparation: Near White Blast Cleaning SSPC-SP-10. Anchor

profile 25 to 75 microns (1 to 3 mils) as measured with Keane-Tator profile comparator or Testex Press-o-Film Replica Tape.

Prime Coat: Inorganic zinc primer, 75 to 100 microns (3 to 4 mils) dry film

thickness. Finish Coat(s): Epoxy finish coat, 100 to 150 microns (4-6 mils) dry

film over the existing zinc primer, applied in according to manufacturer's latest published instructions, producing a film free of pinholes visible to the naked eye and free of defects listed in paragraph 6.9 of this Specification.

Touch-up: Surface preparation of base metal per SSPC-SP-10 or SSPC-SP-11. Zinc rich epoxy, same dry film thickness for prime coat and finish coats as original application.

7.2.3 Coating Class A-3:

Surface Preparation: Near White Blast Cleaning SSPC-SP-10. Anchor profile 25 to 75 microns (1 to 3 mils) as measured with Keane-Tator Profile comparator or Testex Press-o-Film Replica Tape. Prime Coat: Inorganic zinc primer, 75 to 100 microns (3 to 4 mils) dry film thickness. Intermediate Coat: Epoxy intermediate coat, 100 to 150 microns (4 to 6 mils) dry film thickness over the existing zinc primer, applied in accordance with the manufacturer's latest published instructions and producing a film free of pinholes visible to the naked eye and defects listed in paragraph 6.9 of this Specification.

Finish Coat(s): Urethane, 40 to 65 microns (1.5 to 2.5 mils) dry film thickness over the intermediate epoxy applied in accordance with the manufacturer's latest published instructions and producing a film free of pinholes visible to the naked eye and defects listed in paragraph 6.9 of this Specification. Touch-up: Surface preparation of base metal per SSPC-SP-10 or SSPC-SP-11.


25713-220-3PS-NX00-00002-000




Page 14 of 19

7.3 The following coating class shall apply to uninsulated surfaces with 93oC to 400oC

(200F to 750F) operating temperature:

7.3.1 Coating Class B-1:

Surface Preparation: Near White Blast Cleaning per SSPC-SP-10 with a 25 to 75 microns (1 to 3 mils) anchor profile as measured with a Keane-Tator profile comparator or Testex Press-o-Film Replica Tape. Prime Coat: Inorganic zinc primer, 75 to 130 microns (3 to 5 mils) dry film thickness. Touch-up: Surface preparation to be SSPC-SP-10 or SSPC-SP-11.Same Inorganic Zinc and dry film thickness as prime coat. Finish Coat(s): None.

7.3.2 Coating Class B-2:

Surface Preparation: Near White Blast Cleaning per SSPC-SP-10 with a 25 to 75 microns (1 to 3 mils) anchor profile as measured with a Keane-Tator profile comparator or Testex Press-o-Film Replica Tape. Prime Coat: Inorganic zinc primer, 75 to 130 microns (3 to 5 mils) dry film thickness. Finish Coat(s): Epoxy finished coat, 100 to 150 microns (4 to 6 mils) dry film over existing zinc primer in accordance with manufacturers latest published instructions and producing a film free of pinholes visible to the naked eye and defects listed in Paragraph. 6.9 of this Specification. Touch-up: Surface preparation of base metal per SSPC-SP-10 or SSPC-SP-11. Zinc rich epoxy primer and dry film thickness as prime coat, followed by the finish coat as originally applied.

7.4 This coating shall apply to surfaces exposed to coastal environment (indoor and outdoor)

7.4.1 Coating Class C-1

Surface Preparation: Near White Blast Cleaning per SSPC-SP10 with a 25 to 75 microns (1 to 3 mils) anchor profile as measured with a Keane-Tator profile comparator or Testex Press-o-Film Replica Tape Prime Coat: Inorganic zinc primer, 75 to 130 microns (3 to 5 mils) dry film thickness.


25713-220-3PS-NX00-00002-000




Page 15 of 19

Intermediate Coat(s): Epoxy finished coat 2 layers of 150 microns each (6 mils) dry film over existing Zinc primer in accordance with manufacturers latest published instructions and producing a film free of pinholes visible to the naked eye and defects listed in paragraph 6.9 of this specification. Finish Coat: Urethane 2 layers of 35 to 50 microns each (1.4 to 2 mils) dry film thickness over the intermediate epoxy applied in accordance with the manufacturers latest published instructions and producing a film free of pinholes visible to the naked eye and defects listed in paragraph 6.9 of this specification.

Touch-up: Surface preparation of base metal per SSPC-SP-10 or SSPC-SP-11.Zinc rich epoxy primer and dry film thickness as prime coat, followed by the finish coat as originally applied

7.5 The following coating class applies to hot-dip galvanized surfaces. This class may

be used in lieu of inorganic zinc primer for classes A-2 and A-3.

7.5.1 Coating Class D-1 Surface Preparation: Pickled in accordance with SSPC SP8 or abrasive

blasted to meet the requirements of SSPC SP10.

Galvanizing: In accordance with ASTM A123 or A153, as appropriate for the item being galvanized. The minimum weight of zinc shall be 1.0 oz on every surface, to produce a minimum thickness of 43 microns (1.7 mils). Touch-up: Surface prepared in accordance with SSPC SP3, SP11, or SP6. Apply Zinc Rich Epoxy, with the same minimum thickness as originally applied.

Intermediate Coat/Finish Coat: Same as for Classes A-2 and A-3 when galvanizing is used in lieu of inorganic zinc primer, and when specified as needed.

7.6 The following coating class shall apply to internal surfaces of water storage tanks and other surfaces immersed in water.

7.6.1 Coating Class E-1

Surface Preparation: Near White Blast Cleaning per SSPC-SP10 with a 25 to 75 microns (1 to 3 mils) anchor profile as measured with a Keane-Tator profile comparator or Testex Press-o-Film Replica Tape.


25713-220-3PS-NX00-00002-000




Page 16 of 19

Prime, Intermediate, and Finish Coat: three layers of acrylic or vinyl, 75 to 100 microns (3 to 4 mils) dry film thickness. Above water sections can have two layers instead of three.

Touch-up: Surface preparation of base metal per SSPC-SP-10 or SSPC-SP-11.

8 TOUCH-UP WORK

8.1 Where the coating is damaged, the damaged area shall be cleaned to remove all

rust, dirt, oil, grease, or other contaminants. 8.2 Surface cleaning shall be as follows:

8.2.1 The surface shall be cleaned per SSPC-SP-1. Exposed base metal shall

be abrasive blasted to meet original requirements or power tool cleaned to meet the requirements of SSPC-SP-11.

8.2.2 Vacuum blast, 3M Clean-N-Strip, needle guns, 18-24 grit flapper wheels, or

similar tools that both roughen and clean the metal surface and surrounding sound coating are acceptable.

8.3 The surrounding sound coating shall be feathered for approximately 25 mm (1).

The remainder of the overlap area shall be cleaned and prepared as necessary and in accordance with the coating manufacturer's latest published instructions. Surrounding coatings not to be overlapped shall be protected from damage caused by surface preparation.

8.4 Application of all touch-up materials shall be in accordance with the coating

manufacturer's latest published instructions. Minor repairs less than 1 square foot in area may be made using brush application.

9 FINISHED PAINTING COLORS

For colors to structures and equipment, refer to table 2. For colors to piping, as well as symbology, refer to the Technical Specification Pintura de Identificacin de Caeras (No 25599-240-3PS-P000-00005).

Ge

ne

ral S

pe

cific

atio

n fo

r S

hop P

rim

ing

an

d P

ain

tin

g

25

71

3-2

20

-3P

S-N

X0

0-0

00

02

-00

0

Ele

ctr

onic

docum

ents

, once p

rinte

d,

are

uncontr

olle

d a

nd m

ay b

ecom

e o

utd

ate

d.

Refe

r to

the e

lectr

onic

docum

ents

in

sto

BH

PH

ub o

f In

fow

ork

s f

or

curr

ent

revis

ions.

B

echte

l C

onfid

entia

l

Bechte

l 2011.

Conta

ins c

onfid

entia

l and/o

r in

form

atio

n p

roprie

tary

to B

echte

l and its

aff

ilia

ted c

om

panie

s w

hic

h s

hall

not

be u

sed,

dis

clo

sed o

r re

pro

duced in

any f

orm

at by a

ny n

on

-Bec

htel

par

ty w

ithou

t Bec

htel

s prio

r w

ritt

en p

erm

issio

n. A

ll rig

hts

reserv

ed.

Use o

f th

is d

eliv

era

ble

is s

ubje

ct to

restr

ictio

ns s

et fo

rth in t

he c

ontr

act

Page 1

7 o

f 19

Ta

ble

1

No

te 1

: S

ee C

lass A

-2 w

hen

th

ere

is n

o inte

rme

dia

te c

oat sp

ecifie

d, o

r cla

ss A

-3 w

hen

th

ere

is

Ite

ms C

ove

red

(L

isting

is n

ot

limitin

g)

Ind

oo

rs/

Ou

tdo

ors

E

xp

osu

re to

sp

lash

/sp

illin

g

fro

m c

orr

osiv

e

liquid

s.

(1

)

Dry

Film

Th

ickn

ess (

DF

T )

M

icro

ns

(mils

)

Cla

ss

Pri

me

Inte

rm.

Fin

ish

In

do

ors

/

ou

tdoo

rs

No

P

rim

e

Inte

rme

dia

te

Fin

ish

To

uch

-up

A-1

Y

es

No

N

o

Custo

m

sh

op

fa

brica

ted

: T

an

ks,

pla

tew

ork

, p

ipin

g,

du

st

co

llecto

rs,

duct

wo

rk,

un

fire

d p

ressu

re v

esse

ls,

sa

fety

&

fire

p

rote

ctio

n

eq

uip

.,

str

uctu

ral

ste

el, la

dd

ers

, pla

tfo

rms,

gra

tin

g.

Ind

oo

rs

No

7

5 t

o 1

30

(3 t

o 5

)

N

/A

N/A

S

am

e a

s p

rim

e

A-2

Y

es

No

Y

es

Sa

me

as A

-1

Ind

oo

rs /

o

utd

oo

rs

No

7

5 t

o 1

00

(3 t

o 4

)

N/A

1

00

to 1

50

(4 t

o 6

) 7

5 t

o 1

50

(3 t

o 6

)

A-3

Y

es

Ye

s

Ye

s

Sa

me

as A

-1

Ind

oo

rs /

o

utd

oo

rs

Ye

s

75

to

10

0

(3 t

o 4

) 1

00

to 1

50

(4 t

o 6

) 4

0 t

o 6

5

(1.5

to 2

.5)

75

to

15

0

(3 t

o 6

)

B-1

Y

es

No

N

o

Lim

e

mill

, sta

cks,

hoo

ds,

bu

rne

rs,

pla

tew

ork

, pip

ing

a

nd

ta

nks,

hig

h

tem

pe

ratu

re

ele

me

nts

e

xp

ose

d

with

in

fre

qu

en

t shu

t do

wn

Ind

oo

rs /

o

utd

oo

rs

No

7

5 t

o 1

30

(3 t

o 5

) N

/A

N/A

S

am

e a

s p

rim

e

B-2

Ye

s

No

Y

es

Sa

me

a

s

B-1

b

ut

with

fr

eq

uen

t sh

utd

ow

n.

Ind

oo

rs /

o

utd

oo

rs

No

7

5 t

o 1

30

(3 t

o 5

) N

/A

10

0 t

o 1

50

(4 t

o 6

) S

am

e a

s p

rim

e

C-1

Y

es

Ye

s

Ye

s

Ta

nk,

pla

tew

ork

, p

ipin

g,

du

st

co

llecto

rs,

du

ctw

ork

, sa

fety

&

fire

p

rote

ction

eq

uip

men

t,

str

uctu

ral

and

mis

ce

llane

ous

ste

el,

co

nve

yo

r m

isc.

Ste

el, p

latf

orm

s,

sta

irs a

nd g

ratin

g,

in

po

rt f

acili

tie

s

Ind

oo

rs/

Ou

tdo

ors

No

7

5 t

o 1

30

(3 t

o 5

) 2

x1

50

(2

x6

.0)

2x(3

5 t

o 5

0)

2x(1

.4 t

o 2

) 7

5 t

o 1

50

(3 t

o 6

)

D-1

Y

es

Se

e C

lass

A-3

fo

r d

escri

ptio

n

Se

e

Note

1

Ductw

ork

, sa

fety

, a

nd

fire

pro

tection

eq

uip

men

t, str

uctu

ral

ste

el, co

nve

yo

r,

lad

de

rs,

pla

tfo

rms,

raili

ng

, g

ratin

g,

an

d

mis

c. ste

el.

Ind

oo

rs /

o

utd

oo

rs

No

G

alv

an

izin

g

43

(1.7

)

Se

e C

lass

A-3

fo

r d

escri

ptio

n

Se

e N

ote

1

75

to

15

0

(3 t

o 6

)

E-1

Y

es

Ye

s

Ye

s

Inte

rnal

su

rface

s

of

wa

ter

sto

rag

e

tan

ks

or

oth

er

su

rfa

ces

imm

ers

ed

in

w

ate

r.

Ind

oo

rs /

o

utd

oo

rs

No

7

5 t

o 1

00

(3 t

o 4

) 7

5 t

o 1

00

(3 t

o 4

) 7

5 t

o 1

00

(3 t

o 4

) S

am

e a

s p

rim

e


25713-220-3PS-NX00-00002-000




Page 18 of 19

Table 2: Finish Coating Schedule

Color Code Comentaries

CONCENTRATOR

Structural Steel Building structures Light grey RAL 7035 Platforms Light grey RAL 7035 Stairs Light grey RAL 7035 Grating and floor plates Light grey RAL 7035 Handrails Yellow RAL 1004

Tanks Process and potable water tanks For potable water tanks, refer to the Manual

smbolos de seguridad Outside, cover Ivory RAL 1014 Inside, bottom, cover Ivory RAL 1014 Beams over tanks Ivory RAL 1014 Stairs of access to tank Ivory RAL 1014 Internal columns and structures Ivory RAL 1014 Handrails Yellow RAL 1004

Sewage water tanks For sewage water tanks, refer to the Manual

smbolos de seguridad Outside, cover Black RAL 9017 Inside, bottom, cover N/A Beams over tanks Green RAL 6021 Stairs of access to tank Black RAL 9017 Internal columns and structures N/A Handrails Yellow RAL 1004

Fresh water tanks For fresh water tanks refer to the Manual

smbolos de seguridad Outside, cover Ivory RAL 1014 Inside, bottom, cover Ivory RAL 1014 Beams over tanks Ivory RAL 1014 Stairs of access to tank Ivory RAL 1014 Internal columns and structures Ivory RAL 1014 Handrails Yellow RAL 1004

Milk of lime tanks For milk of lime tanks, refer to the Manual

smbolos de seguridad Outside, cover White RAL 9016 Inside, bottom, cover N/A Beams over tanks Green RAL 6021 Stairs of access to tank White RAL 9016 Internal columns and structures N/A Handrails Yellow RAL 1004

Slurry tanks For slurry tanks, refer to the Manual

smbolos de seguridad Outside, cover Ivory RAL 1014 Stairs access to tanks Ivory RAL 1014 Beams over tanks Ivory RAL 1014 Handrails Yellow RAL 1004 Inside, bottom, cover N/A


25713-220-3PS-NX00-00002-000




Page 19 of 19

Table 2: Finish Coating Schedule

Color Code Comentaries

CONCENTRATOR (Cont.)

Material handling equipment Chutes and hoppers (exterior) Ivory RAL 1014 Conveyor structures Drive systems

Mechanical Equipment Crusher Manufacture Standard SAG Mill Manufacture Standard Ball Mills Manufacture Standard Vertical Mills Manufacture Standard Flotation Cells Tank Blue RAL 5017 Flotation Cells Mechanism Blue RAL 5017 Thickeners Bridge Structure Ivory RAL 1014 Thickeners Mechanism Blue RAL 5017

Date post:	16-Oct-2015
Category:	Documents
Upload:	elmemito
View:	69 times
Download:	0 times

OGP1 PINTURA.pdf

Documents