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BLUESIL Vacuum Grease
Silicone high-vacuum grease for vacuum seals, ground joints and laboratory vacuum applications.
Silicone high-vacuum grease for vacuum seals, ground joints and laboratory vacuum applications — very low vapor pressure, chemically inert
Documents
Internal reference:
40-803
HS code:
39100000
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 in 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 bearings extreme temperature | Pneumatic lubrication |
Technical data for BLUESIL Vacuum Grease
| Product information | |
|---|---|
| Networking type | Non-reactive |
| Container | 100g, 100g can, 1kg, 5kg, 25kg |
| Number of components | 1K (single-component) |
| consistency | Thixotropic |
| Mixing ratio | Single-component |
| Manufacturer | Elkem Silicones |
| brand | Bluesil |
| Other features | |
|---|---|
| UV resistance | Yes |
| Physical properties | |
|---|---|
| Paint has hardened | Transparent |
| Self-leveling | No |
| Viscosity uncrosslinked (mPa·s) | 7 |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.
Documents and datasheets
Click on a document for a preview or the download icon for a direct download.
Technical Data Sheets (TDS) 2
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 old mineral greases beforehand. Apply with a brush, spatula, or grease gun. Important: Silicone greases must not be used for lubricating oxygen systems (risk of explosion).
Store in the unopened original container in a dry, cool place — typically between +5 and +30 °C, see TDS for exact values. Consult the Safety Data Sheet (SDS) before use. Observe the expiry date on the packaging — Elkem guarantees the product's specifications only until the date shown.
The comparison table above lists related products with similar functions or specifications. If you are unsure which product is best, we would be happy to advise you — contact SILITECH with details of your application (desired properties, substrate, processing workflow).
Your question isn't listed here
Our technical team will advise you personally on material selection, processing questions, and individual requirements. Quickly and competently.
Product specifications
| Product information | |
|---|---|
| Container | 100 g or 100 g can or 1 kg or 5 kg or 25 kg |
| Networking type | Non-reactive |
| Number of components | 1K (single-component) |
| consistency | Thixotropic |
| Mixing ratio | Single-component |
| Manufacturer | Elkem Silicones |
| brand | Bluesil |
| Other features | |
|---|---|
| UV resistance | Yes |
| Physical properties | |
|---|---|
| Paint has hardened | Transparent |
| Self-leveling | No |
| Viscosity uncrosslinked (mPa·s) | 7 |
| Electrical properties | |
|---|---|
| Electrical insulation | Yes |
| Product approvals | |
|---|---|
| Food contact | No |
| Suitable for medical use | No |
| Keywords | |
|---|---|
| Keywords | |
| Physical & Thermal | |
|---|---|
| Density (23°C) | 1.0 g/cm³ |
| Temperature resistance (duration) | -40 to 200 °C |
| Peak temperature (short-term) | 200 °C |
| storage | |
|---|---|
| Shelf life in original packaging | 36 months |
| Storage temperature | 2 to 40 °C |
Documents and datasheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) are available for download:
- Bluesil Vacuum GRS - Fiche Technique FR.pdf (134 KB)
- Bluesil Vacuum GRS - Fiche de Sécurité FR.pdf (545 KB)
- Bluesil Vacuum GRS - Safety Data Sheet EN.pdf (364 KB)
- Bluesil Vacuum GRS - Scheda di Sicurezza IT.pdf (535 KB)
- Bluesil Vacuum GRS - Safety Data Sheet DE.pdf (339 KB)
- Bluesil Vacuum GRS - Technical Data Sheet EN.pdf (436 KB)