Sealant tube Permatex Ultra Gray 99 g — high-temperature silicone-based sealant

Permatex Ultra Gray 99 g is a high-temperature silicone-based sealant formulated for creating durable, flexible seals on engine components, flanges and other automotive or industrial joints. The gray compound is engineered to withstand elevated temperatures and exposure to oils and common automotive fluids. Supplied in a 99 g tube, this Permatex sealant is intended for use where a reliable replacement for preformed gaskets or where gap-filling and leak prevention are required.

Advantages

The silicone chemistry of Permatex Ultra Gray provides heat resistance and long-term elasticity to maintain an effective seal under thermal cycling. The compound resists oil, water and many automotive fluids, reduces the risk of leakage at mating surfaces and can fill irregularities and small gaps. Packaged in a 99 g tube for controlled application, the product cures to a flexible, durable bead suitable for automotive engine, transmission and accessory sealing tasks.

Suitable for

• Replacing gaskets on engine covers, oil pans and valve covers
• Sealing flanges, housings and mating surfaces on automotive and industrial equipment
• General maintenance tasks that require a high-temperature, oil-resistant silicone sealant
• Repairing small leaks and filling gaps where a flexible seal is needed

Key specifications

• Brand: Permatex
• Product name: Ultra Gray
• Formulation: Silicone-based high-temperature sealant
• Color: Gray
• Net content: 99 g (tube)
• MPN / EAN: 0686226891457

How to use

Ensure mating surfaces are clean, dry and free of oil, old gasket material and loose debris before application. Cut the tube nozzle to the desired bead size and apply a continuous bead of Permatex Ultra Gray to one surface. Assemble parts within the products recommended time frame and tighten fasteners to the manufacturers specified torque. Allow the sealant to cure according to environmental conditions — curing time depends on temperature and humidity. For best results on oil-immersed surfaces, verify compatibility and allow recommended cure time before exposing the seal to fluids.

Usage recommendations

Use appropriate personal protective equipment and follow vehicle or equipment manufacturer procedures when disassembling and reassembling components. Store the tube capped in a cool, dry place. Dispose of empty containers in accordance with local regulations.