1. Mixing the two components

Components A and B are mixed by weight in 1:1 ratio. Mixing can be carried out either by hand or using a low-speed electric or pneumatic mixer to minimize the introduction of air and to avoid any temperature increase. It is also possible to use a special mixing and dispensing machine for the two silicone components. Further information is available upon request.

2. Degassing

The mixture should be degassed, preferably at 30 to 50 mbar to eliminate any entrapped air. If a dispensing machine is used, the two components are degassed separately prior to mixing. The silicone mixture expands to 3 to 4 times of its initial volume and bubbles rise to the surface. The bubbles progressively disappear and the mixture returns to its initial volume after 5 to 10 minutes. Wait a few minutes to complete the degassing and then flash the vacuum. The silicone is ready for pouring, either by gravity or under low pressure.

Note: (Flashing the vacuum once or twice accelerates the degassing. It is recommended to use a container with a high diameter / height ratio.)

3. Polymerization

The system polymerizes at 23 °C. The curing may be slowed down by lowering the temperature and accelerated by adding heat.

4. Inhibition

Contact with certain materials can inhibit the crosslinking. See list below:

  • natural rubbers vulcanized with sulphur,

  • RTV 2 silicone elastomers catalyzed with metal salts, e.g. tin-compounds,

  • PVC stabilized with tin salts and additives,

  • epoxy resins catalyzed with amines,

  • certain organic solvents, e.g. ketones, alcohols, ether etc.

In case of doubts, it is recommended to test the substrate by applying a small quantity of the mixed silicone on a restricted area.

BLUESIL RTV 3611 B may be stored at temperatures between -10°C / 14°F and 30°C / 86°F for up to 6 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL RTV 3611 A&B is a two component, 10 durometer, room temperature curable silicone elastomer designed for use in special effects applications, especially where flexibility and repetitive motion is required. It’s superior physical properties and softness also allows use in orthopedic applications.


2 Part RTV

•Translucent – can be pigmented

•Easy to use

•Excellent combination of softness and mechanical strength

•Low viscosity

•Animatronics; special effect skins

•Props for the film industry                                       

•Theme park props and reproduction molds

•Cushioning applications

North America




Viscosity2000PairedCompISO 2555cP




Viscosity2000PairedCompISO 2555cP






hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1Hardness10PairedMixASTM D 2240sh.A
pot-life_0d649a54-7503-4c7c-a047-9d0c4b3e9f6apot-life_0d649a54-7503-4c7c-a047-9d0c4b3e9f6aPot life75PairedMixASTM C 603min
elongation_68a5ddf2-2baf-4e60-ac6f-0a8a18a758b2elongation_68a5ddf2-2baf-4e60-ac6f-0a8a18a758b2Elongation> 530PairedMixASTM D 412%
tear-strength_a14604f3-602f-4240-a9bf-15d90bbfbd13tear-strength_a14604f3-602f-4240-a9bf-15d90bbfbd13Tear strength> 56PairedMixlb/in
tensile-strength_e61eb2e0-4dc3-47b0-a61f-b673f1b265dctensile-strength_e61eb2e0-4dc3-47b0-a61f-b673f1b265dcTensile strength> 365PairedMixASTM D 412psi





BLUESIL RTV 3611 ABLUESIL RTV 3611 A/our_offer/Product/90060163/90060162/BLUESIL-RTV-3611-A