Other cycloaliphatic epoxies (such as Araldite CY 179 and CY 192 by Ciba, ERL 4090, 4205 by Union Carbide), 2-(3,4-epoxy) cyclohexyl-5,5-spiro (3,4-epoxy)-cyclohexane-m-dioxane, (CY 175 by Ciba, ERL 4234 by Union Carbide).The epoxy resin system of this invention may further include conventional fillers and additives such as pigments and colorants.