1.   Mixing of the two components

Add 100 parts of SILBIONE RTV 4310 B to 100 parts of SILBIONE RTV 4310 A. The two components may be mixed either by hand for 30".

2.   Polymerization

At room temperature (23°C) SILBIONE RTV 4310 A&B cures in approx. 5' regardless the thickness of the mould.

Be aware that contact with certain materials can inhibit the curing of this RTV:

  • Latex gloves.
  • Natural rubbers vulcanized with sulphur.
  • Polycondensation RTV catalysed with metal salts.
  • PVC stabilizing agents.
  • Amine cured epoxies.
  • Sulphur containing clays.

If doubts exist it is recommendable to run a quick test with a small quantity of material in order to assess compatibility. Take note that cross contamination due to not well cleaned tools or devices are frequently the main causes of inhibition. The best way is to use only dedicated gear when processing polyaddition RTVs. 

SILBIONE RTV 4310 B may be stored at a temperature below 40°C / 104°F for up to 24 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


The SILBIONE RTV 4310 A & B is a two component, silicone elastomer which cures at room temperature by a polyaddition reaction (1:1 ratio).

2 Part RTV


  • Soft handling material.
  • Good mechanical properties.
  • Low linear shrinkage.
  • No release of toxic substances during and after curing.
  • High resistance to inorganic chemicals and UV rays.


This product is specifically formulated to match the typical requirement in the podiatry sector for making low modulus prostheses.

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SILBIONE RTV 4310 ASILBIONE RTV 4310 A/our_offer/Product/90054558/90054543/SILBIONE-RTV-4310-A