Firesleeve with zipper closure heat resistant and thermal insulation provides molten splash & weld splatter protection to wires, cables, hoses, tubes and pipes against heat, flame and pyro. The Firesleeve with zipper closure provides a field installable protection sleeve utilizing a nomex zipper with brass teeth instead of velcro cloure strips. Although Velcro sleeve provides excellent protection in most harsh environments, only Firesleeve with zipper closure can endure the most demanding of liquid metal splash and heavy weld splatter. This sleeve alos provides energysavings and personnel protection. The material can withstand temperatures of up to 500°F / 260°C continuous exposure; Molten Splash at 2200°F / 1205°C for periods up to 15 minutes and short excursions to 3000°F / 1650°C.