0004470869 - Molykote 111 Compound Silicone Valve Lubricant & Sealant 5.3oz

Reliable Protection with Molykote 111 Silicone Grease

When it comes to maintaining valves, O-rings, and pressure systems, professionals know that not just any grease will do. Molykote 111 Compound (formerly known as Dow Corning 111) is the heavy-duty silicone lubricant and sealant you need in your toolbox. This 5.3 oz tube packs a punch with a formula that refuses to quit, even in the toughest conditions. Whether you are servicing water softener valves, assembling diving equipment, or maintaining industrial welding gas regulators, this grease provides the slick lubrication and robust sealing properties required to keep equipment leak-free and operational.

Waterproof and Weatherproof: One of the biggest enemies of lubrication is water washout. Molykote 111 is famous for its incredible water resistance. It stays in place even when submerged, making it the go-to choice for outdoor equipment, marine applications, and plumbing fixtures. It creates a durable barrier that prevents moisture from corroding metal parts or degrading rubber seals. If you are working in damp shop environments or on field equipment exposed to the elements, this sealant ensures your work holds up over time.

Versatile O-Ring and Valve Care: Rubber and plastic components can dry out, crack, or stick over time. Molykote 111 is compatible with most plastics and elastomers, helping to condition O-rings and gaskets to extend their lifespan. It is widely used as a lubricant for control and pressure plug valves, ensuring they turn smoothly without binding. Its stiff, tacky consistency also acts as a sealant, helping to bridge small gaps and prevent pressure loss in vacuum or pressurized systems.

Safe and Certified: Safety is paramount in many maintenance jobs. This compound is NSF 51 and 61 certified, meaning it is safe for contact with food processing equipment and potable water systems. This versatility allows you to use a single tube of grease for a wide variety of tasks, from fixing a kitchen faucet to lubricating heavy industrial machinery. With a temperature range that spans from freezing cold to scorching heat (-40°C to 200°C), Molykote 111 is the reliable, all-purpose silicone compound that no maintenance professional should be without.