A fiber glass reinforced plastic can be in-mold coated utilizing a free radical peroxide initiated thermosetting composition of at least one polymerizable epoxy based oligomer having at least two acrylate groups, at least one copolymerizable ethylenically unsaturated monomer, at least one copolymerizable monoethylenically unsaturated compound having a -CO- group and a -NH₂, -NH- and/or -OH group, and other conventional components such as at least one zinc salt of a fatty acid, at least one accelerator, at least one filler, and the like. The thermosetting compositions of the present invention utilize a very low or nil amount of an adhesion agent such as a polyvinyl acetate and unexpectedly achieves better flow and good coverage at reduced coating weights.  
                            玻璃纤维增强塑料可以利用自由基过氧化物引发的热固性组合物进行模内涂覆,该组合物包括至少一种具有至少两个
丙烯酸酯基团的可聚合环氧基低聚物、至少一种可共聚的
乙烯基不饱和单体、至少一种具有-CO-基团和-NH₂、-NH和/或-OH基团的可共聚的单
乙烯基不饱和化合物,以及其他常规成分,例如至少一种具有-CO-基团和-NH₂、-NH-和/或-OH基团的可共聚单
乙烯基不饱和化合物,以及其他常规成分,如至少一种
脂肪酸锌盐、至少一种
促进剂、至少一种填料等。本发明的热固性组合物使用极少量或零用量的粘合剂,如聚
醋酸乙烯酯,在减少涂层重量的情况下,意外地获得了更好的流动性和良好的覆盖性。