DUPONT™ MOLYKOTE® 111 Valve Silicone Lubricant & Sealant – 150 Gram (5.3 oz) Tube
MOLYKOTE 111 by DuPont (Molykote) is a professional-grade silicone lubricant and sealant compound available in 150 Gram (5.3 oz) Tube format. It is designed for use on Valves, O-Rings, Rubber, Metal, Plastic surfaces, delivering long-lasting adhesion, flexibility, and environmental resistance across a wide range of industrial, commercial, and specialized applications. Translucent white in color, this product is trusted by maintenance professionals, OEM manufacturers, and engineers worldwide who demand consistent, specification-grade silicone performance in every application.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 4109788 |
| Brand | DuPont (Molykote) |
| Product / Model Name | MOLYKOTE 111 |
| Color | Translucent White |
| Package Size | 150 Gram (5.3 oz) Tube |
| Product Type | Silicone Lubricant and Sealant Compound |
| Specification | N/A |
| Compatible Substrates | Valves, O-Rings, Rubber, Metal, Plastic |
Technical Information
DUPONT MOLYKOTE 111 is a non-flowing silicone grease compound formulated as both a lubricant and sealant for valve components, O-rings, gaskets, and seals in fluid handling systems. Its stable, non-melting silicone grease consistency stays in place under pressure and temperature cycling, providing reliable lubrication and sealing at valve seats, stem packings, and O-ring grooves in water treatment, laboratory, pharmaceutical, and industrial fluid control applications. MOLYKOTE 111 is compatible with most elastomer types including EPDM, Buna-N, and silicone rubber, and does not swell or degrade rubber components, extending valve and seal service life significantly.
Why Choose MOLYKOTE 111?
- ✅ Dual Function — Lubricates and seals valve components in a single compound
- ✅ Non-Flowing Consistency — Stays in place under pressure — no migration or wash-out
- ✅ Rubber Compatible — Safe on EPDM, Buna-N, silicone rubber — will not swell seals
- ✅ Wide Temperature Range — -40°C to +204°C service for diverse industrial applications
- ✅ Water Treatment Trusted — Widely used in potable water and process fluid valve systems
Frequently Asked Questions
Q: What is MOLYKOTE 111 used for?
A: MOLYKOTE 111 is a non-flowing silicone lubricant and sealant compound used for lubricating valves, O-rings, gaskets, and seals in water treatment, laboratory, pharmaceutical, and industrial fluid handling systems.
Q: What is the MPN for MOLYKOTE 111 150 g tube?
A: The Manufacturer Part Number (MPN) is 4109788.
Q: Is MOLYKOTE 111 NSF certified for potable water?
A: MOLYKOTE 111 is widely used in water treatment and potable water applications. Verify current NSF/ANSI 61 certification status with DuPont before use in regulated drinking water systems.
Q: What is the difference between MOLYKOTE 111 and other silicone greases?
A: MOLYKOTE 111 is specifically formulated as a valve lubricant and sealant compound with a non-flowing consistency that stays in place under pressure, providing both lubrication and sealing functions in a single product.
Q: What temperature range does MOLYKOTE 111 work in?
A: MOLYKOTE 111 is rated for service temperatures from approximately -40°C to +204°C (-40°F to +400°F), suitable for both ambient and elevated-temperature valve applications.
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