BYK-4500

https://www.byk.com/en/additives/additives-by-name/byk-4500.php

Adhesion promoter for aqueous and solvent-borne and systems.

In aqueous systems, it improves adhesion, especially wet adhesion, on critical substrates, such as aged coatings,

oxidized steel, galvanized steel, and polar plastics, such as ABS and glass-fiber reinforced polyester. Early water

resistance is increased as well. Suitable systems are emulsion paints, alkyd emulsions, hybrid systems, and water

reducible alkyd resin systems.

Recommended Levels

1-3% additive (as supplied) based upon total formulation.

The levels recommended above are purely for orientation purposes. Optimal dosage levels are

determined through series of tests.