Description
DupontMolykote High Vacuum Grease (formerly known as Dow Corning Hi-Vac Grease) is a Silicone oil based High Vacuum Clear Grease that is water, chemical and temperature resistant.
This silicone grease is popular as a general use lubricate and is low cost in relation to many of the alternatives. HIVAC is commonly used for lubricating and preserving rubber parts as well as to grease artificial and silicone rubber used in a high-temperature application.
This stiff, non-melting silicone lubricating material is usable for 60 months from the date of production.
Features:
- Lubricates synthetic and silicone rubber gaskets, that require high-temperature rough-vacuum uses
- Inert/nonreactive to vegetable oils, mineral oils, and common gases, and resists most aqueous solutions of inorganic salts
- Popular with chemical plants, plug valves, flow meter bearings, ceramic plug cocks, water treatment equipment, and fire extinguisher valves
Specifications:
| Vapor Pressure | @150C: 1.2 x 10-5Torr (Degassed) @200C: 7 x 10-4Torr (Degassed) |
| Flash Point | > 100C |
| Specific Gravity | @25C: 1.1 |
| Viscosity | Kinematic: (cSt): 2000000 |
| Color | Light Gray |
| Melting Point | None |
| Bleed after 24 Hours | @199C: 0.5% max. |
| Evaporation after 24 Hours | @199C: 2.0% max. |
| Solidification Point | -40C |
| Penetration | unworked: 170 to 230 mm/10; worked (60): < 260 mm/10 |
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