Dow Corning Molykote 111 Silicone O-Ring, Valve & Packing Lubricant/Grease. Excellent Water Resistance. This Water Resistant Grease can be Applied by Hand, Brushing or Wiping. Dow 111 is SAFE for O-Rings and Other EPDM, Buna, Rubber and Plastic Seats/Seals/Gaskets. (Always follow original equipment manufacturers instructions.) Dow Molykote 111 is Used To Lubricate O-RINGS, Seals and Gaskets in: - SCUBA gear / Scuba lubricant - Underwater Photography Cameras/Housings - Watersports Equipment - Marine Applications - Kitchen/Bathroom Water Faucet Valves and Cartridges - Swimming Pool Systems - Reverse Osmosis Systems - Drinking Water Filtration Systems - UltraViolet Systems - Water Softener and Carbon Water Filtration Systems - Potable Water and Food Contact Equipment Applications Dow 111 is water resistant lubricant and is considered a food grade lubricant with the following specifications- Regulations: FDA (Food and Drug Administration) 21 CFR 175.300; NSF (National Sanitation Foundation) Standard 51 & 61 Service Temperature (High): 400 Degress F (204 Deg C); (Low): -40 Degrees C (-40 Deg C) Consistency: NLGI 3 - Solubility: INSOLUBLE in water, methanol, ethanol, or mineral oil