The World Leader in Cashew Nutshell Liquid Technology

Fast Curing Anticorrosion

Primers For Steel Protection

Dr Jean-Luc Dallons – Cardolite CorporationPresented at a meeting of the Thermoset Resin Formulators Association

at the Hyatt Regency Montreal, September 11 through 12, 2006

The World Leader in Cashew Nutshell Liquid Technology

Content Introduction Technology

Anticorrosion Fast and Low Temperature Curing

Surface Tolerance Overcoating

Low VOC Conclusions

The World Leader in Cashew Nutshell Liquid Technology

Steel is the ideal material for building structuresbut it has a major drawback :

It rusts

The World Leader in Cashew Nutshell Liquid Technology

Technology

Approvals : ISO 12944 (Anti-corrosion) ISO 20340 (Offshore)

Epoxy 2K medium coat100-150 µm

Epoxy 2K Zn rich50-80 µm

PU 2K top coat50-80 µm

The World Leader in Cashew Nutshell Liquid Technology

Industry Needs

Provide guarantee (anticorrosion) Fast Curing Low Temperature Curing (all year) Surface Tolerance Overcoat Window Low VOC

The World Leader in Cashew Nutshell Liquid Technology

Anacardic acid

Cardanol

Cardol

2-methyl cardol

CNSL Composition

The World Leader in Cashew Nutshell Liquid Technology

Process

Cardanol

Phenalkamines

CNSL

Cardanol

Phenalkamines

CNSL

Cardanol

PhenalkaminesPhenalkamines

CNSL

The World Leader in Cashew Nutshell Liquid Technology

Reactivity Enhancement

Adhesion

AnticorrosionFlexibility

Chemical Resistance

Cardanol Properties

The World Leader in Cashew Nutshell Liquid Technology

The World Leader in Cashew Nutshell Liquid Technology

Germany (Emssperwerk)

Phenalkamines, a Proven Technology

The World Leader in Cashew Nutshell Liquid Technology

Phenalkamines, a Proven Technology

China – Tsing Ma Bridge

The World Leader in Cashew Nutshell Liquid Technology

Germany – Soccer Stadium

Phenalkamines, a Proven Technology

The World Leader in Cashew Nutshell Liquid Technology

Germany - Windmills

Phenalkamines, a Proven Technology

The World Leader in Cashew Nutshell Liquid Technology

Thailand – Rama III Bridge (Bangkok)

Phenalkamines, a Proven Technology

The World Leader in Cashew Nutshell Liquid Technology

Anti-Corrosion PropertiesP

hena

lkam

ine

Pol

yam

ide

The World Leader in Cashew Nutshell Liquid Technology

Anti-Corrosion Properties

Phenalkamine non-chromate

Conventional non-chromate

Conventional zinc-chromate

The World Leader in Cashew Nutshell Liquid Technology

The World Leader in Cashew Nutshell Liquid Technology

Curing Properties

0

10

20

30

40

50

60

Solid Epoxy Semi-Solid Epoxy Liquid Epoxy

Cu

rin

g (

ho

ur)

0

1

2

3

4

5

6

7

8

9

Po

t lif

e (h

ou

r)

Curing 25°C Curing 5°C Curing -5°C Pot Life 25°C

The World Leader in Cashew Nutshell Liquid Technology

Comparison with Conventional Curing Agent

0

10

20

30

40

50

60

70

80

20°C 0°C

Cu

rin

g (

ho

ur)

Phenalkamine PAAad

With Liquid Epoxy

The World Leader in Cashew Nutshell Liquid Technology

The World Leader in Cashew Nutshell Liquid Technology

Surface Tolerant (humid substrate)

Rusted panels, half wet

Coating (200 µm)

Adhesion after 4months

The World Leader in Cashew Nutshell Liquid Technology

The World Leader in Cashew Nutshell Liquid Technology

Overcoat Properties

Primer : solid epoxy - Top coat : Acrylic UrethanePrimer exposed 180 days outside

Top-coated after exposure

Polyamide Phenalkamine

The World Leader in Cashew Nutshell Liquid Technology

The World Leader in Cashew Nutshell Liquid Technology

Low VOC

100

150

200

250

300

350

400

450

Solid Epoxy Semi-Solid Epoxy Liquid Epoxy

VO

C (

g/l)

'Commercial Product New Product

750

750

750

500

5001100

Viscosity (cps)

The World Leader in Cashew Nutshell Liquid Technology

Fast Curing Hardeners for Protective Coatings

Commercial ProductMedium Solid

New ProductHigh Solid

FutureSolvent Free

Commercial Development Future

The World Leader in Cashew Nutshell Liquid Technology

Conclusions

Outstanding anti-corrosionFast and low temperature curing

Surface toleranceOvercoat Window

Low VOC

The World Leader in Cashew Nutshell Liquid Technology