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BLUESIL RTV 3040 A

BLUESIL RTV 3040 A

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High-strength, clear 2K addition-curing silicone rubber for prototype molds.

High-strength, clear 2K addition-curing silicone rubber (Pt) for prototype molds with excellent detail reproduction and PU resin resistance

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 (%)

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Transparent mold making silicone BLUESIL 2K silicone ELKEM Swiss bearing RTV Addition Platinum base component RTV 3040 Prototyping Urethane-resistant polyurethane SLA 3D reproduction Price list missing

 
General Terms and Conditions

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

Express logistics. Fast and reliable within Switzerland & Europe

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

HS Code: 39100000

HS Code: 39100000

BLUESIL RTV 3040 A
BLUESIL RTV 3040 A
Bluesil · Elkem Silicones ·

BLUESIL RTV 3040 A U1 is the base component of a clear, addition-curing RTV-2 silicone rubber of high strength for mold making, which cures to different hardnesses depending on the catalyst and reproduces molds with fine details and tight tolerances.

BLUESIL RTV 3040 can be cured with various catalysts overnight at room temperature or within a few hours at elevated temperature. The low viscosity makes the product easy to pour and deaerate; it is designed for improved resistance to polyurethane resins.

Mold making with high detail fidelity

Clear, addition-curing RTV-2 silicone rubber of high strength for production and prototype molds, with hardness selectable depending on the catalyst and improved resistance to polyurethane resins.

RTV 3040 at a glance
2K
Addition-curing
A 36 to 45
Shore hardness depending on catalyst
10:1
Mixing ratio A:B
-54 to 204 °C
Temperature range

What sets RTV 3040 apart

Clear and firm
Clear silicone rubber with high strength (addition cure, high strength).
Low viscosity
Base component approx. 50,000 mPa·s, making it easy to pour and quick to degas.
Selectable hardness
Depending on the catalyst (CATA 3038, CATA 3040, CATA 3045), Shore A approx. 36, 38, or 45.
Detail fidelity
Reproduces fine details and maintains tight tolerances; designed for prototype construction.
PU-resistant
Formulated for improved resistance to polyurethane resins.
Low shrinkage
Linear shrinkage below 0.1% (after 24 h and after 7 days).

What is RTV 3040 used for?

Production and prototype molds
Conventional production and prototype molds
Rubber parts
Manufacture of rubber finished parts.
SLA molds
Molding of stereolithography models (SLA).
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
Stir base (Part A) well before use and shake catalyst (Part B) thoroughly.
2
Mixing
Weigh out base and catalyst in a ratio of 10:1 (by weight) and stir until the color is uniform, filling the container only to about 1/3 full.
3
Degassing
Degas in a vacuum (up to 29 inHg) and, after the mass has settled, hold under full vacuum for an additional 2 to 3 minutes.
4
Pouring and Curing
Pour slowly in a thin stream; cure for 16 to 24 h at 24 °C before demolding, full crosslinking after 3 to 7 days.

Important Notes

  • The system contains a platinum catalyst and can be inhibited by amine-crosslinked epoxides, sulfur-cured rubbers (natural, polysulfide, latex rubber and adhesives), sulfur-containing modeling compounds, PVC-coated surfaces, and tin-cured silicone RTV; if in doubt, test compatibility beforehand.
  • Heat curing (40 to 65 °C, 3 to 4 h) accelerates crosslinking but may increase shrinkage; curing temperatures below 20 °C are not recommended.
  • 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.
Transparent mold making silicone BLUESIL 2K silicone ELKEM Swiss bearing RTV Addition Platinum base component RTV 3040 Prototyping Urethane-resistant polyurethane SLA 3D reproduction Price list missing

Technical data for BLUESIL RTV 3040 A

All 16 product information 7 Further properties 1 Physical properties 3 Electrical properties 1 Product approvals 2 Mechanical properties 2
Product Information
Brand Bluesil
Manufacturer Elkem Silicones
Curing type Addition (Platinum)
Container 1 kg, 20 kg
Number of components 2K (two-component)
Consistency Flowable
Mixing Ratio 10:1
Further Properties
UV resistance No
Physical Properties
Cured Color Transparent
Self-leveling Yes
Uncrosslinked viscosity (mPa·s) 24
Electrical Properties
Electrical Insulation No
Product Approvals
Food contact No
Medical grade No
Mechanical properties
Tensile strength (MPa) 412
Elongation at break (%) 412

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) 1
Bluesil RTV 3040 A U1 - Technical Data Sheet EN.pdf
556 KB

Frequently Asked Questions about RTV 3040

Practical application and design questions, answered by SILITECH.

Base to catalyst ratio 10:1 (by weight).

Depending on the catalyst, Shore A hardness is approximately 36 (CATA 3038), 38 (CATA 3040), or 45 (CATA 3045).

Demolding after approx. 16 to 24 h at 24 °C, full crosslinking after 3 to 7 days; accelerated 3 to 4 h at 40 to 65 °C.

The temperature range specified in the TDS is -54 to 204 °C (-65 to 400 °F).

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Product Specifications

Product Information
Container 1 kg or 20 kg
Brand Bluesil
Manufacturer Elkem Silicones
Curing type Addition (Platinum)
Number of components 2K (two-component)
Consistency Flowable
Mixing Ratio 10:1
Further Properties
UV resistance No
Physical Properties
Cured Color Transparent
Self-leveling Yes
Uncrosslinked viscosity (mPa·s) 24
Electrical Properties
Electrical Insulation No
Product Approvals
Food contact No
Medical grade No
Mechanical properties
Tensile strength (MPa) 412
Elongation at break (%) 412
Keywords
Keywords
Transparent mold making silicone BLUESIL 2K silicone ELKEM Swiss bearing RTV Addition Platinum base component RTV 3040 Prototyping Urethane-resistant polyurethane SLA 3D reproduction Price list missing
Mechanical properties
Shore hardness A38.0 Shore A
Tensile Strength6.3 MPa
Elongation at break340.0 %
Tear resistance21.0 kN/m
Linear shrinkage< 0.1 %
Processing
Viscosity of Mixture40’000 mPa·s
Viscosity Comp. A50’000 mPa·s
Pot life at 23°C120.0 min
Demolding time1200.0 min
Physical & Thermal
Density (23°C)1.08 g/cm³
Temperature Resistance (Continuous)-54 to 204 °C
Peak Temperature (Short-term)204 °C
Storage
Shelf life in original packaging18 months
Storage Temperature-5 to 30 °C

Documents and data sheets

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