I also thin my finish coat poly resin to make it flow thinner. I use styrène for that. I also buy it in small 1L metallic box. As I do poly finish on sanded epoxy filler I find isophtalic resin better, slightly more elastic than orthophtalic.
I also thin my finish coat poly resin to make it flow thinner. I use styrène for that. I also buy it in small 1L metallic box. As I do poly finish on sanded epoxy filler I find isophtalic resin better, slightly more elastic than orthophtalic.