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Dow Corning High Vacuum Grease
Dow Corning High Vacuum Grease
Dow Corning® High Vacuum Grease is a silicone-based, odorless, translucent white-grey grease suitable for use in sealing and lubricating. A stiff, non-melting silicone material, Dow Corning High Vacuum Grease seals and lubricates valves, bearings, gaskets, O-rings, and vacuum and pressure systems. It has good lubricating and sealing ability, as well as low volatility. Dow Corning High Vacuum Grease is also chemically resistant, and maintains its consistency over a wide temperature range from -40 to 204°C.
Solubility
Dow Corning 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
Dow Corning High Vacuum Grease is unaffected by most vegetable and mineral oils, many organic compounds, and most common gases. It is also resistant to most aqueous solutions of inorganic salts and to dilute acids and alkalies. The suitability of this specialty lubricant should always be tested before the material is adopted for regular use.
Usable life and Storage
When stored at or below 20°C in the original unopened containers, this product has a usable life of 60 months from the date of production.
Dow Corning® is a registered trademark of Dow Corning.
- Good lubricating and sealing ability
- Low volatility
- Water insoluble
- Chemical resistance
- Stability in high and low temperatures
- Lubrication
- Chemical processing equipment
- Plug valves, control valves, fire extinguisher valves
- Flow meter bearings, ceramic plug cocks
- Synthetic rubber gaskets and seals
- O-rings in binoculars and telescopes (prevents fogging of delicate lenses)
- Sealing
- Chemical processing equipment
- Vacuum systems
- Pressure systems
| Typical Properties | DC-976 |
|---|---|
| Color | light grey, translucent |
| Consistency - penetrometer, unworked (mm/10) | 175 - 210 |
| Bleed at 30 hours, 150ºC (% max.) | 3 |
| Evaporation at 24 hours, 150ºC (% max.) | 1 |
| Density at 25ºC (g/ml) | 1 |
| Solidification Point (ºC) | -40 |
| Melting Point (ºC) | None |
| Shelf Life (months) | 60 |
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