Fibreglass Evercoat 632 Everglass Short Strand Fiber Reinforced Filler - Quart Contains a combination of short strand fibers and Kevlar for superior strength, durability, and prevention of stress cracks in high stress areas Thermal co-efficiency offers tremendous ability to prevent repair mapping Zinc compatible with ZNX-7 for the ultimate in adhesion and corrosion resistance over steel, galvanized steel and aluminum Rustproof and waterproof Can be used over metal and rigid plastics Hardener comes along with the product