Silicone Faucet Grease helps reduce friction and provides long-lasting lubrication. The grease is water resilient and oxidation resistant. It can be used on ceramic stems. It retains its consistency in temperatures from -40? F to 400? F. Faucet grease can be formulated for many plumbing applications. Faucet grease is used to lubricate faucets and stems to help them turn smoothly.