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Bluesilsilicone products

BLUESIL Resine 991

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.

Temperature range
-40 to 200 °C
Density
1 g/cm³
Cured Color
Transparent
Self-leveling
Yes

CHF 0.00 / pc.
  • Brand
  • Color cured - Transparent
  • Food contact
  • Manufacturer
  • Self-leveling
  • Medical grade
  • Uncrosslinked viscosity (mPa·s)
  • Curing type
  • Electrical Insulation
  • Container
  • Number of components
  • Consistency
  • UV resistance
  • Mixing Ratio
Your selection BLUESIL Resine 991 40-761
General terms and conditions of business

Internal reference: 40-761
HS code: 39100000

BLUESIL Resine 991 sample offer

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
Flash point
180 °C

Storage

Shelf life in original packaging
24 months
Storage Temperature
-20 to 50 °C

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
Keywords
  • Silicone
  • BLUESIL
  • ELKEM
  • Swiss warehouse
  • Silicone resin
  • Release Agent
  • RES 991
  • Methyl Silicone Resin

Product Description

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 991

Bluesil Resine 991 is a proven silicone resin from the Bluesil industrial range — versatile in coatings, impregnations and as a silicone binder component.

Resine 991 in numbers
991
Bluesil
Silicone
Resin
Industry
Universal
Swiss
Warehouse

What makes Resine 991 stand out

Universal industrial resin
Proven Bluesil standard.
Versatile application
Coatings, impregnations, binders.
Bluesil quality
Established industry standard.
SILITECH consultation
Application recommendation via SILITECH.
Swiss warehouse
Available from Swiss stock.

What is Resine 991 used for?

Industrial coatings
General coating applications.
Impregnation
Industrial impregnation applications.
Binder component
Silicone binders in formulations.
OEM application
OEM industry.
Data Sheets & Safety Data Sheet
TDS and SDS in multiple languages — view or download directly.
To the documents →

Processing

1
Prepare the substrate
Clean, dry, sand if necessary for mechanical clamping.
2
Apply resin
Apply solvent-based resins evenly in thin coats by spraying, brushing or dipping.
3
Solvents evaporate
Allow to dry — evaporation of the solvent is important for an even coating.
4
Crosslinking
Typical due to heating — crosslinking profiles are application-specific (see TDS).
5
Final examination
Before applying the layer, check for complete cross-linking and uniform coverage.

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 typeUniversal silicone resinMethylsiloxane solution resinSpecial silicone resinHigh-performance silicone resin
Solventsee TDSsee TDSsee TDSsee TDS
Solid contentsee TDS83 %see TDSsee TDS
Viscositysee TDSsee TDSsee TDSsee TDS
Colorsee TDSsee TDSsee TDSsee TDS
Main applicationIndustrial universal resinHigh-temperature coatingIndustrial coatingHigh-performance coating

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).