German Technical Background VOK-364 P Leveling Agent Used for Anti-shrink Holes in Powder Coatings Replaces BYK-364 P

German technical background VOK-364 P leveling agent

VOK-364 P powdered polyacrylate surface additive for powder coatings, excellent anti-crater and leveling additive to increase pigment and substrate wetting. 

Product information 

Chemical composition 

Polyacrylate adsorbed on silica 

Typical physicochemical data 

The data presented on this data page is typical and not a product specification. 

Acrylate content: 60% 

Density (20 °C): 1.32 g/ml 

Residue after calcination: 37% 

Purchase form: powder 

Application areas 

Powder coating 

Features and benefits 

VOK-364 P is an effective anti-crater adjunct. Reduce orange peel by optimizing the leveling properties of powder coatings. Prevents pinholes, fish eyes and other surface defects. The polar structure of the additive improves the wetting of pigments and substrates. Better DOI values (vividness) and less pinhole surfaces can be obtained, especially in powder coating systems replaced by TGIC. VOK-364 P is a hydroxyl active additive that can be incorporated into polymer compounds by reacting with a suitable resin. 

Recommended Use 

The additive is recommended for powder coatings based on epoxy, polyester, polyurethane, acrylate resins and polyester/epoxy hybrid resins. 

Recommended dosage 

0.5-2% additive dosage (purchased form) is based on total formulation. 

The above recommended dosage is for reference, and the appropriate dosage needs to be determined through a series of tests. 

Addition method and processing guidance 

The additive is mixed with resins, curing agents, pigments and other raw materials in a high-speed mixer and then extruded. The additive is well dispersed by the extruder to improve the gloss and leveling of the powder coating and to prevent cratering, fisheyes and particle formation.