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BLUESIL RTV 147 B Blue (2.5kg)

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Crosslinker (component B, blue) for the addition-curing RTV-2 systems BLUESIL RTV 147/148: thermal protection, flexible insulators, molded parts and molded seals, potting of electrotechnical systems.

High-viscosity 2K-Pt silicone potting compound (Shore A 60, beige/blue) for thermal insulation, flexible insulating materials and electrotechnical embedding — peak temperature +300 °C

Price on request

  • Brand
  • Manufacturer
  • Curing type
  • Container
  • Number of components
  • Consistency
  • Mixing Ratio
  • UV resistance
  • Cured Color
  • Self-leveling
  • Uncrosslinked viscosity (mPa·s)
  • Electrical Insulation
  • Food contact
  • Medical grade
  • Tensile strength (MPa)
  • Elongation at break (%)
  • Tear strength (N/mm)

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High-temperature resistant blue silicone hardener BLUESIL RTV 147 B 2K silicone ELKEM industrial Swiss warehouse +300°C Electrical insulation RTV addition Platinum Electronic potting catalyst Protective coating Mixing indicator 2.5 kg Price list missing

 
General Terms and Conditions

Shipping usually within 1 to 3 business days
(Availability confirmed after order)

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From Swiss stock Dispatch within 24h Batch certificate Invoice 30 days (B2B) Technical advice
Shipping & Delivery

Usually 1 to 3 business days

Availability is confirmed after order receipt.

Express logistics within Switzerland & Europe.

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Product data

Internal reference: 40.906B.KE.K2.5

HS Code: 39100000

Internal reference: 40.906B.KE.K2.5
HS code: 39100000

BLUESIL RTV 147 B Blue (2.5kg)
BLUESIL RTV 147 B Blue (2.5kg)
Bluesil · Elkem Silicones · SKU 40.906B.KE.K2.5

BLUESIL RTV 147 A&B is a two-component, addition-curing RTV-2 silicone that cures at room temperature into a heat-resistant, elastic molding compound with Shore A 60 hardness.

RTV 147 A is processed with hardener RTV 147 B in a ratio of 100:10 and forms a flowable paste after mixing, which cures without reaction heat. RTV 147 A and 148 A can be mixed in any ratio to achieve a medium hardness.

Heat-resistant embedding

Addition-curing RTV-2 silicone with very good thermal stability (peak temperature up to approx. +300 °C), good reversion resistance, and good dielectric properties, designed for thermal protection and the embedding of electrical systems.

RTV 147 in figures
2K
Addition-curing
A 60
Shore A hardness
100:10
Mixing ratio A:B
+300 °C
Peak temperature

What sets RTV 147 apart

Heat-stable
Excellent thermal stability, peak temperature up to approx. +300°C, brittle point -70°C.
Reversion resistant
Good reversion resistance, even in enclosed environments.
Rapid heat curing
Cures quickly and bubble-free when heated up to 150 °C.
Good mechanical properties
Tensile strength 6.0 MPa, elongation at break 180 %, tear strength over 15 kN/m.
Dielectric
Dielectric strength 18 kV/mm, volume resistivity 5 x 10^14 Ohm.cm.
Adjustable hardness
Mixable with RTV 148 A for medium hardness, e.g., 50:50 with 10 parts of 147 B results in Shore A 55.

What is RTV 147 used for?

Thermal protection
Manufacture of thermal protection devices.
Flexible insulators
Cast, flexible insulators.
Form gaskets
Cast gaskets.
Electrical engineering embedding
Potting protection for electrical systems.
Data sheet and safety data sheet
View or download the Technical Data Sheet (TDS) and Safety Data Sheet (SDS).
To the documents →

Processing

1
Preparation and mixing
Stir both components before use. Add 10 parts of RTV 147 B to 100 parts of RTV 147 A and mix slowly to minimize air entrapment.
2
Degas
Degas at 30 to 50 mbar; RTV 147 requires particularly long degassing due to its high viscosity; use a container with a high diameter-to-height ratio.
3
Casting
Pour slowly and evenly; for thick layers, start from the lowest point and do not fill completely.
4
Curing
Demoldable at room temperature after 24 to 48 h, accelerated 4 h at 65 °C, 1 h at 100 °C, or 30 min at 150 °C.

Important Notes

  • Addition curing is sensitive to inhibition: avoid sulfur-containing rubbers, metal-salt-catalyzed RTV, tin-stabilized PVC, and amine-crosslinked epoxides; if in doubt, test beforehand.
  • Viscosity can be reduced before curing with up to 10% BLUESIL FLD 47V100; more will affect the properties of the finished parts. Linear shrinkage approx. 0.1% at room temperature.
  • The currently valid Elkem data sheet (TDS and SDS) is authoritative, which we will be happy to send you.
Topics & Application Fields
Key terms related to this product. Also useful for our search and filters.
High-temperature resistant blue silicone hardener BLUESIL RTV 147 B 2K silicone ELKEM industrial Swiss warehouse +300°C Electrical insulation RTV addition Platinum Electronic potting catalyst Protective coating Mixing indicator 2.5 kg Price list missing

Technical data for BLUESIL RTV 147 B Blue (2.5kg)

All 17 Product Information 7 Further Properties 1 Physical Properties 3 Electrical Properties 1 Product Approvals 2 Mechanical Properties 3
Product Information
Brand Bluesil
Manufacturer Elkem Silicones
Curing type Addition (Platinum)
Container 2.5 kg
Number of components 2K (two-component)
Consistency Flowable
Mixing Ratio 10:1
Further Properties
UV resistance No
Physical Properties
Cured Color Blue
Self-leveling No
Uncrosslinked viscosity (mPa·s) 10'000
Electrical Properties
Electrical Insulation Yes
Product Approvals
Food contact No
Medical grade No
Mechanical properties
Tensile strength (MPa) 6
Elongation at break (%) 3
Tear strength (N/mm) 15

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) 3
Bluesil RTV 147 B Blue - Technical Data Sheet DE.pdf
192 KB
Bluesil RTV 147 B Blue - Technical Data Sheet EN.pdf
426 KB
Bluesil RTV 147 B Blue - Fiche Technique FR.pdf
201 KB
Safety Data Sheets (SDS) 3
Bluesil RTV 147 B Blue - Safety Data Sheet DE.pdf
318 KB
Bluesil RTV 147 B Blue - Fiche de Sécurité FR.pdf
524 KB
Bluesil RTV 147 B Blue - Scheda di Sicurezza IT.pdf
516 KB

Frequently Asked Questions about RTV 147

Practical application and design questions, answered by SILITECH.

100 parts RTV 147 A to 10 parts RTV 147 B.

Peak temperature up to approx. +300 °C, brittle point -70 °C, good reversion resistance.

Shore A approx. 60, tensile strength 6.0 MPa, elongation at break 180 %, tear strength over 15 kN/m.

Yes, RTV 147 A and 148 A can be mixed in any ratio; for example, a 50:50 mix with 10 parts of 147 B results in Shore A 55.

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Product Specifications

Product Information
Brand Bluesil
Manufacturer Elkem Silicones
Curing type Addition (Platinum)
Container 2.5 kg
Number of components 2K (two-component)
Consistency Flowable
Mixing Ratio 10:1
Further Properties
UV resistance No
Physical Properties
Cured Color Blue
Self-leveling No
Uncrosslinked viscosity (mPa·s) 10'000
Electrical Properties
Electrical Insulation Yes
Product Approvals
Food contact No
Medical grade No
Mechanical properties
Tensile strength (MPa) 6
Elongation at break (%) 3
Tear strength (N/mm) 15
Keywords
Keywords
High-temperature resistant blue silicone hardener BLUESIL RTV 147 B 2K silicone ELKEM industrial Swiss warehouse +300°C Electrical insulation RTV addition Platinum Electronic potting catalyst Protective coating Mixing indicator 2.5 kg Price list missing
Mechanical properties
Linear shrinkage< 0.1 %
Processing
Viscosity of Mixture10’000 mPa·s
Viscosity Comp. A150’000 mPa·s
Viscosity Component B10’000 mPa·s
Demolding time2160.0 min
Physical & Thermal
Density (23°C)1.25 g/cm³
Temperature Resistance (Continuous)-70 to 250 °C
Peak Temperature (Short-term)300 °C
Thermal conductivity0.31 W/(m·K)
Electrical characteristics
Dielectric constant ε (1 kHz)2.9
Dielectric strength18.0 kV/mm
Volume resistivity5e+14 Ω·cm
Dissipation factor tan δ0.003
Storage
Shelf life in original packaging18 months
Storage Temperature-20 to 30 °C

Documents and data sheets

Safety Data Sheets (SDS) and Technical Data Sheets (TDS) for download: