True Composites:MEK-P Polyester Resin Hardener – Methyl Ethyl Ketone Resin Catalyst – Advanced Activator Bottle for Polyester Resin, Gelcoat, Epoxy Ester Products – 2 x 4oz Bottles;

This is a 8 oz of clear activator, MEKP (Methyl Ethel Ketone Peroxide). Used for hardening or activating of polyester, vinyl-ester, and Hybrid (epoxy - vinyl-ester) resins and gelcoats. General purpose use. Product is Norox 925