Bondloc Flange Seal Type B515 is a purple, smooth, thick paste. Easily applied, cures once confined between the parts to form in place a tough, flexible gasket. Gives an instant low pressure seal. Used for fuel and water pumps, split crank cases on engines, gearbox covers, engine thermostats, air compressor end caps, engine timing cam covers onto blocks, pump couplings, fuel tanks on small implements, chain saws, lawn mowers etc. Specifications: Colour: Dark Purple PasteFixture Speed No Activator: Up to 12 hours.Fixture Speed With Activator: 100C.Shelf life: 12 months @ 20C.Specific gravity: 1.10.Max operating temp: -55C to + 150C. Cured Performance: Full Cure Time: 12 hours.Tensile strength: 8 N/mm(2).Static Shear strength: 12.5 N/mm(2). Size: 50ml.