Remix each of the two components (part A and B) every time before using.

  • Add 100 parts of SILBIONE RTV 4340 A to 100 parts of SILBIONE RTV 4340 B.
  • Mix thoroughly the two components by hand until a homogeneous colour is obtained.
  • Mix gently in order to avoid air bubbles from being entrapped.

Warning: for mixing use only clean stainless steel or plastic vessels.
Crosslinking of RTV vulcanising by an addition cure reaction may be inhibited by contact with products like:
- Heavy metal salts.
- Amines.
- Sulphur and derivatives.
- Catalysts of epoxy resins.

SILBIONE RTV 4340 B BLUE 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 4340 A&B is a two components silicone elastomer which cures at room temperature by an addition curing reaction (1:1 ratio).

2 Part RTV

  • Excellent reproduction of details.
  • Good mechanical properties.
  • Low linear shrinkage.
  • No release of toxic substances during and after curing.
  • High resistance to inorganic chemicals and UV rays.
  • Good release properties with organic resin and hydrated plaster of Paris.
  • Biocompatibility and no toxicity.

SILBIONE RTV 4340 A&B is basically dedicated to audiology laboratories.

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ColorBluePairedCompASTM D 412




ColorWhitePairedCompASTM D 412






hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1hardness_cd523e03-72a3-4261-93f9-36f7bbeeafb1Hardness41.5PairedMixISO 868sh.A





SILBIONE RTV 4340 A WHITESILBIONE RTV 4340 A WHITE/our_offer/Product/90054548/90054549/SILBIONE-RTV-4340-A-WHITE
























Silbione™ Dental Applications™ Dental Applications