Skip to content
Website 0 CHF
  1. All products
  2. Bluesil RTV 3535 P A&B
Bluesil RTV 3535 P A&B

Bluesil RTV 3535 P A&B

https://www.silitech.ch/web/image/product.template/3966/image_1920?unique=f048d5f

Moldable two-component silicone putty for very fast impressions and model fixation — mixing ratio 1:1.

Moldable 2-component silicone putty (paste, 1:1, Pt) for very fast impressions and model fixation — cures in 5 minutes without the need for a setting agent

CHF0.00 0.0 CHF CHF0.00 Excluding taxes

CHF0.00 Excluding taxes

Price upon request

  • manufacturer
  • brand
  • network type
  • Number of components
  • mixing ratio
  • UV resistance
  • Paint cured
  • Self-leveling
  • consistency
  • Pot life (min)
  • Demolding time (min)
  • Tensile strength (MPa)
  • Elongation at break (%)
  • Tensile strength (N/mm)
  • Electrical insulation
  • food contact
  • Suitable for medical use
  • container

This combination does not exist.

Get in touch with us
Mold Making Silicone Bluesil 2-component silicone Elkem Swiss stock RTV Addition Platinum Complete kit Ready to mix Prototyping RTV 3535 P Silicone paste Quick bonding 5 min 1:1

 
Terms and Conditions

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

Express logistics. Fast and reliable within Switzerland & Europe

Ships from our Swiss warehouse Shipped within 24 hours Batch certificate 30-day invoice (B2B) Technical support
Shipping & Delivery

Usually 1 to 3 business days

Availability will be confirmed once the order is received.

Express logistics within Switzerland and Europe.

Terms and Conditions →

Product Information

Internal reference: 40-917

HS Code: 39100000

Internal reference: 40-917
HS Code: 39100000

Bluesil RTV 3535 P A&B
Bluesil RTV 3535 P A&B
Bluesil · Elkem Silicones · SKU 40-917

Bluesil RTV 3535 P A & B is a kneadable two-component silicone putty (paste, 1:1, Pt) for very fast impressions and model fixation—cures in 5 minutes without setting.

This product line includes moldable two-component silicone pastes (1:1, Pt) for very fast impressions—no casting required, no vacuum degassing, and cures in 5 minutes. RTV 3535 P is designed for specific industrial applications—see below for its key properties and applications.

1:1 Putty — Connected in 5 Minutes

Bluesil RTV 3535 P is a kneadable silicone paste—mix 1:1 by hand, press into the mold, and remove from the mold after 5 minutes. Ideal for very quick impressions without pouring or vacuum degassing.

RTV 3535 P by the Numbers
Putty 1:1
paste
5 min
curing
Shore A 32–34
hardness
<0.1 %
Shrinkage

What sets the RTV 3535 P apart

1:1 mixing ratio
The easiest way to measure it out — mix equal parts white and blue.
Very quick setup (5 minutes)
High-throughput prints with no wait time.
Moldable paste
Press directly onto the original—no need for a stamp or vacuum.
Very low shrinkage
<0.1 % — massgenaue Abdrücke.
Natural adhesion
Adheres to many substrates without the need for an additional primer.
Good print quality
Reproduces details similar to a casting mold—quickly and easily.

What is RTV 3535 P used for?

Quick impressions
Instant molds without casting — prototype iterations.
Model fixation
Holding and support jigs for model parts in the workshop.
Mold Repair
Local shape repair and adjustment using a moldable paste.
Rapid prototyping
Iterative modeling in design development.
Art and Restoration Applications
Impressions of small reliefs in sculpture and restoration.
Workshop jigs and fixtures
A versatile, fast form for ad hoc applications.
Data Sheets & Safety Data Sheets
Complete TDS and SDS in German, English, and French — view online or download.
Go to the documents →

processing

1
Prepare the model
Clean, grease-free, dry.
2
Mix by hand in a 1:1 ratio
Knead equal amounts of white and blue dough together until you get a uniform color—no more streaks.
3
Press into the mold
Within the working time (2–3 min), press the material evenly onto the model—no seams.
4
curing
5 minutes at 23 °C — fastest RTV curing.
5
Removing from the mold + Applying
Carefully remove from the mold after curing. Wait 1 hour before use to allow the material to fully cure.

Recommended Accessories

Bluesil Primer 131
Universal bonding agent for stainless steel, aluminum, PMMA, and many metals.
Go to product →
Bluesil Fluid 47 V 50
PDMS thinner / plasticizer for Bluesil RTV systems.
Go to product →

Important information

Mixing & Dosage
Stir A and B thoroughly before each use. Use the exact proportions specified (see table above)—preferably by weight. Incorrect proportions will result in incomplete curing.
Degassing
De-gas the mixture under a vacuum of 30–50 mbar. The material expands to 3–4 times its original volume and shrinks back after 5–10 minutes. Interrupt the vacuum several times to improve degassing.
Avoid inhibitors
Polyaddition silicones are inhibited by: sulfur-cured rubber, tin-catalyzed RTV, amine epoxides, and PVC containing tin salts. If in doubt, conduct a preliminary test.
Application Consulting
SILITECH can advise you on the best RTV option for your application—substrate, hardness, pot life, and mechanical properties. Please contact us with details about your specific application.

RTV 3535 P compared with related RTV products

Crosslinking system, mechanics, and processing times listed side by side — all values taken from the official Elkem TDS. “— ” = not specified in the data sheet.

RTV 3535 P
Current Product		 RTV 3410 QC →RTV 3428 →RTV 3430 SB →
Networking System2K Polyaddition (Pt) Putty2K Polyaddition (Pt)2K Polyaddition (Pt)2K Polyaddition (Pt)
mixing ratio1 : 110 to 110 to 110 to 1
ColorWhite / blue (B)Transparent / blue (B)Transparent / pink / whiteTransparent / gray (B)
Shore A hardnesspp. 32–34A 10A 28A 28
elongation at break150 %200 %600 %600 %
tensile strength0.8 MPa2 MPa7.5 MPa6 MPa
tear resistance5 kN/m4 kN/m20 kN/m20 kN/m
pot life2–3 min10 min1 h1 h
demolding time5 min30–40 min16 h10 h
Mixed viscositypaste10,000 mPa·s≈25,000 mPa·s20,000 mPa·s
Main applicationQuick impressionsLong-life moldsComplex shapes with undercutsConcrete components (construction)
Topics & Areas of Application
Keywords related to this product. Also useful for our search and filter functions.
Mold Making Silicone Bluesil 2-component silicone Elkem Swiss warehouse RTV Addition Platinum Complete kit Ready to mix Prototyping RTV 3535 P Paste silicone Quick bonding 5 min 1:1

Technical Specifications for Bluesil RTV 3535 P A&B

All 18 Product information 6 Additional features 1 Physical Properties 3 Curing values 2 Mechanical Properties 3 Electrical properties 1 Product approvals 2
product information
manufacturer Elkem Silicones
brand Bluesil
network type Addition (Platinum)
Number of components 2K (two-component)
mixing ratio 1:1
container 500 g + 500 g, 1 kg + 1 kg
Additional features
UV resistance No
Physical properties
Paint cured blue
Self-leveling No
consistency Thixotropic
curing values
Pot life (min) 2
Demolding time (min) 5
Mechanical properties
Tensile strength (MPa) 0.8
Elongation at break (%) 150
Tensile strength (N/mm) 5
Electrical Properties
Electrical insulation No
product approvals
food contact No
Suitable for medical use No

For binding values, please refer to the technical data sheet (TDS) in the "Documents" tab.

No public documents available.
Upon request, we will be happy to send you the TDS and SDS via email. Please submit a request.

Frequently Asked Questions About RTV 3535 P

Practical questions regarding processing and design — answered by SILITECH.

Bluesil RTV 3535 P A & B: Kneadable two-component silicone putty (paste, 1:1, Pt) for very fast impressions and model fixation — cures in 5 minutes without setting. Main applications include fast impressions, model fixation, and mold repair.

Polyaddition curing is a two-component silicone chemistry that uses a platinum catalyst. Component A contains the platinum complex, while Component B contains the SiH crosslinker. When mixed, the components cure without releasing reaction byproducts—no shrinkage due to outgassing, excellent dimensional accuracy, and low linear shrinkage. Important: Polyaddition silicones are inhibited by various substances—sulfur-vulcanized natural rubbers, tin-catalyzed RTV silicones, amine-catalyzed epoxy resins, and PVC stabilized with tin salts. If in doubt, a preliminary test should be conducted.

Stir components A and B thoroughly before each use. Measure out the exact amount according to the mixing ratio specified in the TDS (see comparison table above)—preferably by weight. Mix using an electric or pneumatic mixer at low speed (to minimize air entrapment). Degas the mixture under vacuum (30–50 mbar)—the material expands to 3–4 times its original volume, bubbles escape, and the material deflates after 5–10 minutes. Then slowly pour into the mold from the lowest point to avoid air entrapment. For polyaddition systems, avoid contact with inhibitors (sulfur rubber, tin RTV, amine epoxies, PVC with tin salts).

Store in the unopened original container in a dry, cool place—typically between +5 and +30 °C; see the TDS for exact values. Store components A and B separately; seal airtight after opening. Polyaddition systems are not sensitive to moisture but should be stored in a cool place to maintain pot life. Consult the Safety Data Sheet (SDS) before use.

In the comparison table above, you will find related RTV products with different hardness levels, pot lives, or application profiles. If you are unsure about the best choice, we would be happy to advise you—please contact SILITECH with details about your application (substrate, desired hardness, processing time, and requirements for mechanical properties and durability).

Can't find your question here?

Our technical team will provide you with personalized advice on material selection, processing issues, and specific requirements. Quickly and professionally.

Request a sample Request a sample

product specifications

product information
container 500 g + 500 g or 1 kg + 1 kg
manufacturer Elkem Silicones
brand Bluesil
network type Addition (Platinum)
Number of components 2K (two-component)
mixing ratio 1:1
Additional features
UV resistance No
Physical properties
Paint cured blue
Self-leveling No
consistency Thixotropic
curing values
Pot life (min) 2
Demolding time (min) 5
Mechanical properties
Tensile strength (MPa) 0.8
Elongation at break (%) 150
Tensile strength (N/mm) 5
Electrical Properties
Electrical insulation No
product approvals
food contact No
Suitable for medical use No
keywords
keywords
Mold Making Silicone Bluesil 2-component silicone Elkem Swiss stock RTV Addition Platinum Complete kit Ready to mix Prototyping RTV 3535 P Silicone paste Quick bonding 5 min 1:1
Mechanical properties
Shore A hardness33.0 Shore A
tensile strength0.8 MPa
elongation at break150.0 %
Tear resistance5.0 kN/m
Linear shrinkage< 0.1%
processing
Pot life at 23°C3.0 min
demolding time8.0 min
Physical & Thermal
Density (23°C)1.55 g/cm³
Temperature resistance (duration)-50 to 200 °C
Peak temperature (short-term)200 °C
storage
Shelf life in original packaging12 months
Storage temperature-5 to 30 °C