I WILL BE ORDERING A MATERIAL HARDENER FROM A NETHERLANDS CO THIS WEEK IT WORKS AS GOOD AS A WATER BASE RESIN FOR FIBERGLASS.THE PLUS SIDE IS ITS SAFE FOR THE ENVIRONMENT PEOPLE AND ANIMALS AND WATER CLEAN UP.THE COST IS THE SAME AS WATER BASE RESIN AND IT CAN BE TINTED IN OPAQUE AND METALLIC COLORS.AFTER I MAKE THE CALL AND GET THE PARTICULARS AND THE PRODUCT i,LL CONTINUE WITH THIS BUILD PROBLY NEXT WEEK.