Withstands salt water, UV-Rays, acids and fuels. Tensile strength of 600 psi. Won't melt up to +500 degrees F (+260 degrees C). Remains flexible down to -60 degrees F (-50 degrees C). Insulates to 8000 volts (for a 20mil thick wrap). Air and water tight. No adhesive - self fusing. Excellent for: boat riggings, ends of rope, corrosive areas, boat and RV hook-ups, wire bundles, electrical insulation, air duct joints, emergency hose repair, sport and tool grips and plumbing repair.