High Vacuum Silicone Grease OKAF Silicone Grease is a translucent, water repelling (hydrophobic), non-melting, and lubricating dielectric grease that provides superior corrosion and arcing resistance for connectors. It is a highly adhesive grease that forms continuous lubrication film between frictional contacting surfaces over extended duration thereby avoiding frictional wear. Based on special inorganic thickener, it withstands high temperature without change in structure and characteristics. The product has good compatibility with nonferrous metals, plastic, and Elastoplast materials. It can withstand vacuum up to 10-6 torr. -40° C to 250° C.