RESIN CURING PROMOTER AND CURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a method for giving a FRP molded product with no discoloration by using a curing system of slight odor. SOLUTION: The subject resin curing promoter comprises a mercapto group- contg. ester of the formula (R1 is a 1-5C alkyl; R2 is a 1-24C alkyl) as active ingredient. The other objective method for curing a resin such as an unsaturated polyester resin or vinyl ester resin comprises using a combination of an organic peroxide with the above-mentioned mercapto group-contg. ester of the formula.