Rocol® Sapphire® Silicone (MX22) Grease is a translucent, non-melting, non-toxic, multi-purpose silicone grease (N.L.G.I no.3) suitable for the lubrication of seals & o-rings on valves, & various food processing & water processing equipment. Sapphire® Silicone is suitable for long term lubrication at extremes of temperature & is extremely water resistant & also resistant to a wide range of chemicals, oils & gases. It can also be used as an electrical insulating & filling compound. Applications: Rubber seals & o'rings, low speed bearings, slides & adjustment spindles, tapware for potable water. MPI Approved C15. Asurequality Approved. MPI Dairy Approved & Recognised. Wide temperature range -40°C to +220°C. Not suitable for Automotive brake systems.