German technical background VOK®- AP 4512 Metal substrate adhesion promoter

Metal substrate adhesion promoter for solvent-based coatings

Product information

Chemical composition: polymer solution containing functional groups

Typical physical and chemical data

The data given in this data page are only typical values, not technical indicators of the product.

Amine value: 56 mg KOH/g

Density (20 ℃): 1.10 g/ml

Non-volatile matter (20 minutes, 150 ℃): 60%

Solvent: propylene glycol methyl ether acetate

Flash point: 43 ℃

Application information

Liquid coating

Features and advantages

When used for coil coating, VOK®- AP 4512 can improve the adhesion and corrosion resistance after water immersion test and molding process (such as deep calendering and T-bending). This additive is especially suitable for chrome free primer and metal substrate without chrome pretreatment. VOK®- AP 4512 can react with melamine resin or polyisocyanate and cross into the resin system. When used in industrial coatings, VOK®- AP 4512 can improve the adhesion of coatings directly applied to metal or glass. This additive is especially suitable for two-component system and baking system.