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 Paste Fixture Speed No Activator Up to 12 hours. Fixture Speed With Activator & lt2 hours. Viscosity Paste. Gap fill 0.5 mm. Flash point & gt100C. 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.