PLACCEL FM3 is a macromonomer having a methacrylic double bond and a primary hydroxyl group.Copolymerization with PLACCEL FM3 introduces primary hydroxyl groups in the acrylpolyol resin.these hydroxyl groups are dangling from acrylpolyol main chain via flexble polycaprolactone chain.Hence they can easily react with melamine or other hardening agents such as polyisocyanate to form crosslinking.This results in elastic and tough coating films.
