HS Code:
39100000
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, 250g, 1kg, 5kg, 20kg, 25kg, 200kg
- Number of components
- 1K (one-component)
- Mixing Ratio
- One-component
- Brand
- Bluesil
- Manufacturer
- Elkem Silicones
- Consistency
- Thixotropic
Further Properties
- UV resistance
- Yes
Physical Properties
- Cured Color
- Transparent
- Self-leveling
- No
Electrical Properties
- Electrical Insulation
- Yes
Product Approvals
- Food contact
- No
- Medical grade
- No
Product Description
Bluesil Paste 4 is a universal silicone paste from the Bluesil range for a wide variety of industrial applications — lubrication, heat transfer, vacuum sealing, corrosion protection.
Bluesil/Silbione silicone pastes — filled PDMS compounds for thermal bonding, vacuum sealing, dielectric insulation, and heat conduction applications. Paste 4 is tailored to specific applications — the most important properties and areas of application are listed below.
Bluesil Paste 4 is a universal silicone paste for a wide range of industrial applications — from lubrication and thermal bonding to vacuum sealing. A proven Bluesil industry standard.
What makes Paste 4 stand out
What is Paste 4 used for?
Processing
Recommended accessories
Paste 4 in comparison
Direct comparison with related paste products in our range. “— "” = not specified in the data sheet.
Paste 4 Current Product |
Paste 340 → | Paste 408 → | Paste 7 → | |
|---|---|---|---|---|
| Consistency | Universal Paste | Thermal paste | Special paste | Industrial Paste |
| Penetration | see TDS | 280 (1/10 mm) | see TDS | see TDS |
| Thermal conductivity. | see TDS | 0.41 W/m·K | see TDS | see TDS |
| Temperature Range | see TDS | –40 / +250 °C | see TDS | see TDS |
| Color | see TDS | White | see TDS | see TDS |
| Main application | Industrial universal | Thermal bonding electronics | Bluesil Special Application | Industrial lubricant/sealant |
Frequently Asked Questions about Paste 4
Practical application and design questions — answered by SILITECH.
Bluesil Paste 4: Universal silicone paste from the Bluesil range for diverse industrial applications — lubrication, heat transfer, vacuum sealing, corrosion protection. Main applications: industrial lubrication, vacuum sealing, corrosion protection.
Apply to clean, dry surfaces — degrease beforehand if necessary. Application with brush, spatula, or paste gun. For thermal pastes, apply thinly and evenly — excessive layer thickness reduces thermal conductivity. Pastes can be diluted with aliphatic or chlorinated solvents if thin layers are required.
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).


Silicones, silicone oils, sprays
Casting and potting resins