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BLUESIL Resine 991
Silicone lacquer for increasing the surface resistivity of insulating materials and electrical devices (circuit boards, electronic assemblies) for use in very humid atmospheres and where high-temperature treatment is not possible.
BLUESIL Resin 991 combines a methylphenyl silicone resin with an acrylic resin to create a silicone coating that significantly increases the surface resistivity of insulating materials and electrical assemblies. It protects printed circuit boards and electronic assemblies for use in very humid environments without the need for high-temperature treatment. The coating can be applied undiluted or diluted without a catalyst; simple drying is sufficient. Soldering locally breaks down the coating, allowing for rework without prior cleaning.
Documents
Internal reference:
40-761
HS code:
39100000
Bluesil Resine 991 is a silicone resin from the Bluesil 991 series — an industry-standard resin for a wide range of coating, impregnation and binder applications.
Bluesil/Silbione silicone resins — methylsiloxane solution resins for high-temperature coatings, powder coating binders, impregnation, and electrical insulation. Resin 991 is tailored to specific applications — the most important properties and areas of use are listed below.
Bluesil Resine 991 is a proven silicone resin from the Bluesil industrial range — versatile in coatings, impregnations and as a silicone binder component.
What makes Resine 991 stand out
What is Resine 991 used for?
Processing
Resine 991 in comparison
Direct comparison with related resin products in our range. “— " = not specified in the data sheet.
Resin 991 Current Product |
Resin 20B → | Resine 8152 P → | Resine 9515 → | |
|---|---|---|---|---|
| Resin type | Universal silicone resin | Methylsiloxane solution resin | Special silicone resin | High-performance silicone resin |
| Solvent | see TDS | see TDS | see TDS | see TDS |
| Solid content | see TDS | 83 % | see TDS | see TDS |
| Viscosity | see TDS | see TDS | see TDS | see TDS |
| Color | see TDS | see TDS | see TDS | see TDS |
| Main application | Industrial universal resin | High-temperature coating | Industrial coating | High-performance coating |
Technical data for BLUESIL Resine 991
| Product Information | |
|---|---|
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Non-reactive |
| Container | 1 kg, 5 kg, 25 kg |
| Number of components | 1K (one-component) |
| Consistency | Flowable |
| Mixing Ratio | One-component |
| Further Properties | |
|---|---|
| UV resistance | Yes |
| Physical Properties | |
|---|---|
| Cured Color | Transparent |
| Self-leveling | Yes |
| Uncrosslinked viscosity (mPa·s) | 175 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| 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 Resine 991
Practical application and design questions — answered by SILITECH.
Bluesil Resin 991: Silicone resin from the Bluesil 991 series — an industry-standard resin for a wide range of coating, impregnation, and binder applications. Main applications: industrial coatings, impregnation, and binder component.
Silicone resins are typically used as coatings or binder components. They are applied by spraying, dipping, or brushing. After application, the solvent evaporates, and the resin typically cures upon heating. The exact processing method depends on the specific application—see the Technical Data Sheet (TDS) or contact SILITECH for advice.
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).
Your question not covered?
Our technical team provides personal advice on material selection, processing questions, and individual requirements. Fast and competent.
Product Specifications
| Product Information | |
|---|---|
| Container | 1 kg or 5 kg or 25 kg |
| Brand | Bluesil |
| Manufacturer | Elkem Silicones |
| Curing type | Non-reactive |
| Number of components | 1K (one-component) |
| Consistency | Flowable |
| Mixing Ratio | One-component |
| Further Properties | |
|---|---|
| UV resistance | Yes |
| Physical Properties | |
|---|---|
| Cured Color | Transparent |
| Self-leveling | Yes |
| Uncrosslinked viscosity (mPa·s) | 175 |
| Electrical Properties | |
|---|---|
| Electrical Insulation | No |
| Product Approvals | |
|---|---|
| Food contact | No |
| Medical grade | No |
| Keywords | |
|---|---|
| Keywords | |
| Physical & Thermal | |
|---|---|
| Density (23°C) | 1.0 g/cm³ |
| Flash point | 180.0 °C |
| Temperature Resistance (Continuous) | -40 to 200 °C |
| Peak Temperature (Short-term) | 200 °C |
| Storage | |
|---|---|
| Shelf life in original packaging | 24 months |
| Storage Temperature | -20 to 50 °C |
Documents and data sheets
Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download: