Prepare your semi truck to be Ready for the Road Ahead , with the Dynatex Hi-Temp RTV Silicone Gasket Maker that forms ultra-strong and solid silicone seals. To efficiently seal exhaust systems, gearboxes, and engines, this replacement device uses a liquid solution to create custom-fit silicone gaskets. Fashioned with a sophisticated system that keeps parts at their best with a resistance to water, oil , and other fluids. FleetPride is your First Click in Heavy Duty .