Dupont Molykote 111 Compound Vaccuum & Pressure Valve Grease
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SKU:
DC_MOLYKOTE_111_150G_4109788
Regular price
$ 29.99 USD
95 units available
SKU
- Type Silicone Grease
- Vendor Dupont Molykote
- SKU DC_MOLYKOTE_111_150G_4109788
Dupont Molykote 111 Compound Vaccuum & Pressure Valve Grease Tube 150g (5.3oz) is a silicone grease that is ideal for control and pressure plug valves and for acting as a sealant for vacuum and pressure valves. It offers excellent water resistance and meets several global standards for water content.
Features
- Wide service temperature range (-40C/-40F to 200C/392F)
- Excellent water resistance & chemical resistance
- Compatible with many plastics and elastomers
- Low vapor pressure
- Low volatility
- Silicone Oil based with inorganic thickening agents
- Long shelf life, 60-months from DOM
- Meets several global standards for water contact
- Conforms to FDA 175.300, NSF 51 and NSF 61
Popular Applications
- Lubrication for control and pressure plug valves, water softener and faucet valves.
- Sealant for vacuum and pressure systems.
- Sealant for outdoor equipment (also shipboard) subject to washing and harsh environmental exposure: meters, electrical service entrance and underground connections.
- Damping medium for dash pots in electrical and electronic equipment.
- Used as an anti-stick and a sealant for transformer gasket and equipment enclosures. It prevents gaskets from sticking to metal and resists weathering and water washout.
- Rubber and plastic O-rings, gaskets and seals.
Application Instructions:
- Molykote 111 Lubricant can be applied by hand, specially designed automated equipment, brushing or wiping. Certain designs of grease guns may seize up; test prior to use.
- A thinner consistency can be achieved by dispersing in solvents such as xylene, mineral spirits and Methyl Ethyl Ketone (2-Butanone). Dow 111 Silicone Lubricant can then be applied by brushing, dipping or spraying.
- Dow 111 Lubricant should not be applied to any surface which will be painted or finished. Such coatings may not adhere to the silicone-treated surface. If contaminated by a silicone coating, parts can be wiped or washed with solvent, washed with detergent, or immersed in an alcoholic potassium hydroxide solution and then rinsed in clear water before painting.
This silicone grease is very prevalent as a general use lubricate and is low cost in relation to many of the alternatives. 111 Compound is commonly used for lubricating and preserving rubber parts as well as to grease artificial and silicone rubber used in a high-temperature application.
Product Name
Dupont Molykote 111 Compound Vacuum & Pressure Valve Grease
Brief Description
A heavy-consistency silicone compound designed as a valve lubricant and sealant for vacuum and pressure systems, offering excellent water resistance and a wide service temperature range. It is compatible with many plastics and elastomers and meets global standards for water contact.
Popular Applications & Uses
- Lubrication for control and pressure plug valves, water softener, and faucet valves.- Sealant for vacuum and pressure systems.- Sealant for outdoor equipment (including shipboard) exposed to washing and harsh environmental conditions, such as meters, electrical service entrance, and underground connections.- Damping medium for dash pots in electrical and electronic equipment.- Anti-stick and sealant for transformer gaskets and equipment enclosures, preventing gaskets from sticking to metal and resisting weathering and water washout.- Lubrication for rubber and plastic O-rings, gaskets, and seals.- Control cables lubrication.
Industries that Commonly Use It
- Chemical Industry- Electrical Services or Products- Food & Beverage Company or Distributor- General Manufacturing- Marine- Petroleum Industry, Products or Services- Pool/Spa/Plumbing- Transportation/ Specialty Vehicle
Special and Unique Features
- Excellent water resistance and weatherability.- Wide service temperature range (-40°C/-40°F to 200°C/392°F or 204°C/399°F).- Compatible with many plastics and elastomers.- Low vapor pressure and low volatility, minimizing migration and loss.- Meets several global standards for water contact, including NSF 51, NSF 61, and FDA 21 CFR 175.300.- Good chemical resistance to dilute acids, alkalis, and most aqueous solutions.- Provides a non-curing moisture barrier and high dielectric strength.- Resists oxidation and ozone.- Prevents gaskets from sticking to metal and resists weathering and water washout.- Free of PTFE and PFAS.
Key Properties
- Product type: Silicone compound/grease.- Technology: Silicone.- NLGI Grade: 3-4.- Thickener: Silica (inorganic).- Color: Translucent white (can appear white to light gray).- Operating Temperature Range: -40°C to 200°C (or 204°C).- Low volatility: Yes.- Low vapor pressure: Yes.- Dielectric strength: 320 volts/mil (50 mil).- Insoluble in water, methanol, ethanol, mineral oil.- Soluble in xylene, mineral spirits, methyl ethyl ketone, Chlorothene NU®, perchloroethylene.
Surface Compatibility
- Compatible with many plastics and elastomers (rubber and plastic O-rings, gaskets, seals).- Prevents gaskets from sticking to metal.- Not greatly affected by mineral oils, vegetable oils, or air.- Generally resistant to dilute acids and alkalis, and most aqueous solutions.- Not to be used with liquid oxygen or in applications requiring LOX compatibility.- Should not be applied to surfaces that will be painted or finished, as coatings may not adhere.
Known backups / known substitutes
- Novagard Versilube Silicone Grease G661 and G662 are presented as alternatives to Molykote 111 Compound (Dow Corning DC111). G662 is also NSF 61 certified.- While some sources state there is “no direct substitute” due to specific heat ratings, silicone seal compatibility, or lubricity, Novagard offers comparable products.- Other general-purpose silicone greases might be considered, but compatibility and performance should be thoroughly tested.
Comparison Note
Molykote 111 Compound is widely regarded as an industry-standard lubricant and sealant for valves and seals, with decades of proven performance. Its comprehensive certifications for water contact (NSF 51, NSF 61, FDA 175.300) and broad material compatibility make it a highly versatile and reliable choice, particularly in applications involving potable water, food processing, and harsh environmental exposure. While alternatives exist, Molykote 111's established track record and specific properties often make it the preferred solution where consistent performance and regulatory compliance are critical.
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And especially if you are considering or comparing a few different formulas. Our datasheet server can help you download the necessary data to help u decide and keep your project going.
Click Here to visit our Datasheet Server (TDS, SDS, Fact Sheets, Selector Guides, etc)