Silicones, silicone oils, sprays
Casting and potting resins)
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Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Physical and thermal
- Density (23 °C)
- 1 g/cm³
- Temperature resistance (duration)
- -40 to 200 °C
- Peak temperature (briefly)
- 200 °C
Storage
- Shelf life in original packaging
- 36 months
- Storage Temperature
- 2 to 40 °C
Product Information
- Curing type
- Non-reactive
- Container
- 100g, 100g can, 1kg, 5kg, 25kg
- Number of components
- 1K (one-component)
- Consistency
- Thixotropic
- Mixing Ratio
- One-component
- Manufacturer
- Elkem Silicones
- Brand
- Bluesil
Further Properties
- UV resistance
- Yes
Physical Properties
- Cured Color
- Transparent
- Self-leveling
- No
- Uncrosslinked viscosity (mPa·s)
- 7
Electrical Properties
- Electrical Insulation
- Yes
Product Approvals
- Food contact
- No
- Medical grade
- No
Product Description
Bluesil Vacuum Grease is a silicone high-vacuum lubricating grease for vacuum seals, ground joints and laboratory vacuum applications — very low vapor pressure, chemically inert.
Bluesil silicone greases — lithium-soap-thickened silicone oils for lubrication in a wide temperature range (-70 to +200 °C), oxidation-stable, water-repellent. Vacuum GRS is tailored to specific applications — the most important properties and areas of application can be found below.
Bluesil Vacuum Grease is a silicone grease with a very low vapor pressure — specifically for high-vacuum applications such as ground joints, vacuum valves, and vacuum seals. Chemically inert, heat-stable, and a proven laboratory and industrial standard.
What distinguishes Vacuum GRS
What is Vacuum GRS used for?
Processing
Recommended accessories
Vacuum GRS in comparison
Direct comparison with related grease products from our range. "— " = not specified in the data sheet.
Vacuum GRS Current Product |
TAP Grease → | GRS 33 NG → | GRS 55 NG → | |
|---|---|---|---|---|
| Thickener | Silicone thickener | Silicone thickener | Lithium soap | Lithium soap |
| Penetration | see TDS | see TDS | 280 (1/10 mm) | 290 (1/10 mm) |
| Dropping point | see TDS | see TDS | 226 °C | 220 °C |
| Temperature Range | see TDS | see TDS | –70 / +200 °C | –65 / +175 °C |
| Color | see TDS | see TDS | Off-white | Off-white |
| Main application | High-vacuum lubrication | Sanitary / Drinking Water | Ball Bearing Extreme Temperature | Pneumatic Lubrication |
Frequently Asked Questions about Vacuum GRS
Practical application and design questions — answered by SILITECH.
Bluesil Vacuum Grease: Silicone high-vacuum grease for vacuum seals, ground joints, and laboratory vacuum applications — very low vapor pressure, chemically inert. Main applications: vacuum ground joints, vacuum valves, high-vacuum systems.
Prepare the surfaces to be lubricated clean, dry, and degreased. Silicone grease is not compatible with mineral greases — carefully remove any old mineral grease beforehand. Apply with a brush, spatula, or grease gun. Important: Silicone greases must not be used for lubricating oxygen systems (explosion hazard).
Store in the unopened original container in a dry, cool place — typically standard between +5 and +30 °C, exact values see TDS. Consult the Safety Data Sheet (SDS) before use. Observe the expiration date on the packaging — Elkem guarantees the sales specifications only up to the stated date.
In the comparison table above, you will find related products with similar functions or related specifications. If you are unsure about the optimal choice, we will be happy to advise you — contact SILITECH with your application (desired property, substrate, processing workflow).