Evercoat 622 Everglass Short Strand Fiber Reinforced Filler - Gallon 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 This item is not for sale in Catalina Island