DuPont Molykote High Vacuum Grease (Formerly Dow Corning) 5.3oz
DuPont Molykote (Formerly Dow Corning) High-Vacuum Grease
DuPont Molykote (formerly Dow) High-Vacuum Grease is a one component, non-melting silicone oil that is used for sealing and lubricating O-rings, chemical processing equipment, control valves, water treatment equipment, pressure systems, plug valves, and high temperature applications. It is a stiff compound with low volatility, and resists chemicals, water, mineral oils, common gases, and organic compounds.
Key Properties
NLGI Grade 3–4, translucent white, used primarily in sealing vacuum and pressure systems.
Applications
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
Protective coating for meters, electrical service entrance, and underground connections
Chemical barrier coating
Rubber and plastic O-rings, gaskets, and seals
Features & Benefits
Excellent resistance to most chemicals
Wide service temperature range
Low vapor pressure and low volatility
Outstanding water resistance
Meets FDA 21 CFR 175.300 compliance
Reduces wear in plastic-to-metal and rubber-to-metal contact
Composition
Silicone oil
Inorganic thickener
Product Details |
|
Product Type |
Compound |
Chemistry |
Silicone |
NLGI Grade |
3-4 |
Thickener |
Silica |
Cure Temp |
NA°C |
High Temp |
204°C |
Low Temp |
-40°C |
Color |
Translucent White |
Hazmat |
No |
Performance Data
Solubility
Molykote High-Vacuum Grease is insoluble in water, methanol, ethanol, acetone, glycol, and glycerine. It can be dispersed in kerosene, Stoddard solvent, benzene, toluene, ethyl ether, or petroleum ether.
Chemical Resistance
Unaffected by most vegetable and mineral oils, many organic compounds, and most common gases. Resistant to most aqueous solutions of inorganic salts and to dilute acids and alkalies. Suitability should always be tested before adoption for routine use.
Handling Precautions
Product safety information required for safe use is not included here. Before handling, consult safety data sheets and container labels for safe use, physical data, and health hazard information.
Typical Properties
Specification writers: Values are not intended for preparation of specifications. Contact your local Molykote sales representative before writing specifications for this product.
Standard(1) |
Test |
Unit |
Result |
|
Color |
|
White to gray, translucent |
|
Physical nature |
|
Stiff compound |
ISO 2137 |
Penetration, unworked |
mm/10 |
170 to 230 |
ISO 2137 |
Penetration, worked 60, maximum |
mm/10 |
<260 |
CTM 0033A A |
Bleed, 24 hours; 200°C |
% |
<0.5 |
CTM 0033A B |
Evaporation, 24 hours; 200°C |
% |
<2.0 |
|
Melting point |
°C |
None |
Usable Life and Storage
When stored at or below 30°C in the original unopened containers, the product has a usable life of 60 months from the date of manufacture.
Packaging
Available in multiple standard container sizes. For detailed container options, contact your nearest Molykote sales office or authorized distributor.