German technical background VOK®-AP 526 wax auxiliary

Wax emulsion of VOK®-AP 526 ethylene vinyl acetate copolymer (EVA) to improve the surface properties of waterborne effect pigment coatings. 

Product Information 

Chemical composition 

Anionic wax emulsion of modified ethylene vinyl acetate copolymer. 

Typical materialized data 

The data presented on this data page are typical values only and are not technical indicators of the product. 

Non-volatile (60 min., 125 °C): 30% 

Carrier: Water Melting point (wax composition): 105 °C 

Viscosity (23 °C, D=800/s): 40 mPa·s 

pH: 9.7 

Storage and transportation 

The product is temperature sensitive and must be stored and transported below 35 °C. Stir well before use. 

Application areas 

Coatings industry 

Features and benefits 

This additive improves the directional arrangement of effect pigments such as aluminum powder and pearlescent powder, and it increases the effect of shimmering with different colors at different angles. In addition, it reduces short ripple defects (cloud spots, Bernard vortices) and has no negative effect on chemical resistance. 

Recommended use 

The additive is recommended for waterborne effect pigment coatings, especially automotive paints. 

Recommended dosage 

6-10% additive (purchased form) based on total formulation. 

The above recommended addition amount is for reference, and the suitable addition amount needs to be determined by a series of tests. 

Incorporation method and processing guidance 

The additive is best added at a low shear rate at the end of production. Stir well before use.