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BLUESIL Paste B 431
Static lubrication as well as electrical insulation and protection at low temperatures in aggressive (acidic) atmospheres; protection of terminal boxes and connectors, cold protection of formed-in-place gaskets, lubrication of small mechanisms at extreme temperatures (-60 °C to +200 °C) and of aluminum on steel or aluminum.
BLUESIL Paste B 431 is a polydimethylsiloxane-based silicone paste with inert fillers for static lubrication, electrical insulation at low temperatures, and protection in aggressive atmospheres. It protects electrical equipment such as terminal boxes and connectors from moisture and corrosive environments, provides low-temperature sealing, cold protection for on-site molded seals, and lubricates small mechanisms from -60 to +200 °C, for example in air conditioning and refrigeration systems, and for bonding aluminum to steel or aluminum. The paste is resistant down to -60 °C, acid-resistant, self-leveling, chemically inert, and hydrophobic.
Documents
HS Code:
39100000
Bluesil Paste B 431 is a special silicone paste from the Bluesil range — tailored to defined industrial applications with specific requirements.
Bluesil/Silbione silicone pastes — filled PDMS compounds for thermal bonding, vacuum sealing, dielectric insulation, and heat conduction applications. Paste B 431 is tailored to specific applications — its key properties and areas of use are listed below.
Bluesil Paste B 431 is a special paste from the Bluesil industrial range — application area and detailed specification available from SILITECH consulting.
What distinguishes Paste B 431
What is Paste B 431 used for?
Processing
Recommended accessories
Paste B 431 in comparison
Direct comparison with related paste products in our range. “— "” = not specified in the data sheet.
Paste B 431 Current Product |
Paste 340 → | Paste 4 → | Paste 7 → | |
|---|---|---|---|---|
| Consistency | Special paste | Thermal paste | Universal 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 | Bluesil Special | Thermal bonding electronics | Industrial universal | Industrial lubricant/sealant |
Technical data for BLUESIL Paste B 431
| Product Information | |
|---|---|
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Non-reactive |
| Number of components | 1K (one-component) |
| Consistency | Thixotropic |
| Mixing Ratio | One-component |
| Container | 25g, 100g, 1kg, 5kg, 25kg |
| Further Properties | |
|---|---|
| UV resistance | Yes |
| Physical Properties | |
|---|---|
| Cured Color | White |
| Self-leveling | No |
| Electrical Properties | |
|---|---|
| Electrical Insulation | Yes |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
Please refer to the technical data sheet (TDS) in the "Documents" tab for binding values.
Documents and data sheets
Click on a document for the preview or the download icon for direct download.
Technical Data Sheets (TDS) 2
Frequently asked questions about Paste B 431
Practical application and design questions — answered by SILITECH.
Bluesil Paste B 431: Special silicone paste from the Bluesil series — tailored to defined industrial applications with specific requirements. Main applications: Special industrial applications, Bluesil applications, OEM applications.
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).
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Product Specifications
| Product Information | |
|---|---|
| Container | 25 g or 100 g or 1 kg or 5 kg or 25 kg |
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Non-reactive |
| Number of components | 1K (one-component) |
| Consistency | Thixotropic |
| Mixing Ratio | One-component |
| Further Properties | |
|---|---|
| UV resistance | Yes |
| Physical Properties | |
|---|---|
| Cured Color | White |
| Self-leveling | No |
| Electrical Properties | |
|---|---|
| Electrical Insulation | Yes |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
| Keywords | |
|---|---|
| Keywords | |
| Physical & Thermal | |
|---|---|
| Density (23°C) | 1.0 g/cm³ |
| Temperature Resistance (Continuous) | -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 data sheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download: