Bondloc Gasket Seal Type B518 is a Red, smooth, thick paste. Easily applied, it cures once confined between the parts to form a tough, flexible gasket in place. It provides an instant low-pressure seal. This sealant is 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, and for dressing gaskets and spacers. Product Specifications: Resin: Modified Urethane Acrylate. Colour: Red Paste. Fixture Speed (No Activator): Up to 12 hours. Fixture Speed (With Activator): <2 hours. Viscosity: >3,500,000 cps. Gap fill: 0.5 mm. Flash point: >100°C. Shelf life: 12 months @ 20°C. Specific gravity: 1.13. Max operating temp: -55°C to +150°C. Product Performance: Full Cure Time: 12 hours. Tensile strength: 8 N/mm(2). Static Shear strength: 12.5 N/mm(2). Size: 50ml.