Ciba Specialty Chemicals

Coating Effects Segment



# Ciba ® 

# EFKA ® 

# 6225

Edition: 05. 08.2005, Basle  2005 Ciba Specialty Chemicals Inc. Page 1 of 2 

### General EFKA 6225 stabilizes all kinds of pigments and extenders in water

and solvent

- based systems, especially in decorative coatings. In addition it makes polar ingredients of universal colorants more compatible with non

- polar solvent

- based paints into which they may be incorporated. This results in:

ß maximum color development of the colorant based on EFKA

6225

ß higher pigment loading in colorants

ß optimum color acceptance of universal colorants in base

- paints



### Chemical Composition Fatty acid modified polyester



### Physical Properties Active ingredients : 100%

Densit y at 20 °C : 1.02

- 1.06 g/cm3 DIN 51757

Acid value : 47

- 51 mg KOH/g DIN 53402

Amine value : 45

- 50 mg KOH/g DIN 16945

Color : max. 18 ISO 4630
Appearance : brownish liquid



### App lications EFKA 6225, used as wetting and dispersing agent, is considered

suitable

for VOC

- free applications, particularly universal colorants.

When using universal colorants in decorative paints, the addition of EFKA 6225 to the base paints (water and s olvent) can increase
compatibility and color acceptance, especially in water

- based and

ultra

- low aromatic content decorative paints.



### Recommended concentrations

EFKA 6225 can be incorporated into the mill

- base or used as post

additive.

To reach lowe st viscosity, EFKA 6225 should be neutralized to pH 8

- 8.5, before adding to the mill

- base.

Calculation method for the required amount of active ingredient on pigment:

For universal colorants: 5

- 10% for inorganic pigments

10

- 20% for organic pi gments

In addition in base

- paints: 0.5

- 1.5% on total base

- paints

## Ciba ® 

## EFKA ® 

## 6225

Edition: 05.08.2005, Basle  2005 Ciba Specialty Chemicals Inc. Page 2 of 2 

### Safety and Handling EFKA 6225 should be handled in accordance with good industrial practice. Detailed information is provided in the Safety Data Sheet.



### Storage EFKA 6225 should be stored in a cool dry place. When kept in an original unopened container, it will keep up to 5 years from the date of manufacture. The expiry date is indicated on the container.



### Packaging packaging information is available on request through our local representative



### Trademark EFKA is a registered trademark.



### Important Notice IMPORTANT: The following supersedes Buyer’s documents. SELLER

MAKES NO REPRESENTATION OR WARRANTY, EXPRESS OR IMPLIED,

INCLUDING OF MERCHANTABILITY OR FITNESS FOR A PARTICULA R

PURPOSE. No statements herein are to be construed as inducements to infringe any relevant patent. Under no circumstances shall Seller be liable for incidental, consequential or indirect damages for alleged negligence, breach of warranty, strict liability , tort or contract arising in connection with the product(s). Buyer’s sole
remedy and Seller’s sole liability for any claims shall be Buyer’s purchase price. Data and results are based on controlled or lab work and must be confirmed by Buyer by testing for its intended conditions of use. The product(s) has not been tested for, and is
therefore not recommended for, uses for which prolonged contact

with mucous membranes, abraded skin, or blood is intended; or for uses for which implantation within the human b ody is intended.