Silicone Grease NLGI#1 O-Ring & Valve Lubricant (Silicone Compound) is an NLGI #1(lowest stiffness) Silicone Grease, formulated with polydimethylsiloxane (CAS # 63148-62-9) and inert silica filler.

Chemical Name: Polydimethylsiloxane Silicone Grease

Clearco Silicone Greases (Silicone Compounds) are formulated with polydimethylsiloxane (CAS # 63148-62-9) and inert silica filler. They are used in a variety of applications that require: wide range of thermal stability, high dielectric strength, electrical insulation, inertness to rubber and plastic surfaces, and insulation against corrosion and moisture.

Silicone Greases are inert to virtually all substrates with the exception of silicone rubber. * They are often used for lubricating o-rings, gaskets, valves and seals as well as surfaces that require excellent lubricating properties over long periods without drying out. They are not recommended for metal-to-metal lubrication or on surfaces that will be painted or finished.