Dow Corning 55 O-Ring Lubricant is a soft silicone-based grease, slightly swells rubber for better sealing, oxidation resistant and serviceable over a wide temperature range. Used for dynamic lubrication and sealing between rubber and metal parts in pneumatic valves. Typical applications are found within the aircraft, automotive, paintball and other industries. Color/ Appearance: Off White Product Name: Dow Corning 55 O-Ring Lubricant Base Chemistry: Silicone Service Temperature: -65 to 177 C Flash Point: > 214 F