BYK®-377 is a polyether modified polydimethylsiloxane. The product improves substrate wetting and leveling at low dosages. In most cases only half the amount of a conventional silicone is needed to optimize substrate wetting, slip and tape release of UV curable, 2 pack PU, polyester/melamine and aqueous topcoats. Due to the good compatibility in common binder systems, the production of highly transparent varnishes is possible. Typically it does not cause turbidity in clearcoats. Sanding is required for recoat adhesion. The OH groups of BYK-377 can react with polyisocyanates
BYK globally supplies additives in the Paint and Coatings Industry. These additives include nanotechnology-based additives, surface additives, wetting and dispersing additives, and rheology additives. BYK’s product range also includes wax and process additives, defoamers and UV absorbers, and viscosity depressants. BYK’s key brands include ANTI-TERRA®, AQUACER®, BYK®, CERACOL®, DISPERBYK®, OPTIGEL®, etc.
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