BLUESIL MF 770 U may be stored at temperatures between -5°C / 23°F and 40°C / 104°F for up to 18 months from its date of manufacturing.Please consult the Safety Data Sheet of this product.


BLUESIL MF 770 U is a hot curing silicone rubber after addition of a vulcanization agent (chosen according to the transformation process).

Chemical Protection;Heat Protection;High Temperature Protection;Protection;Sealing

HCR Masterbatch

  • Only very slight re-plastifying occurring after prolonged storage.
  • Easy working procedure.
  • No post-curing, or with slight post-curing.
  • Good heat stability, up to .
  • Bright colour easily obtained.
  • Good compromise between tear strength and compression set.
  • Excellent rebound.

Moulding and injection moulding process for technical parts (sealing gaskets, grommets), calendering operations for manufactured hoses, extrusion profiles (windows profiles, sleeves, tubes) and wire and cables for domestic appliances.
For extrusion applications, depending on processing conditions and geometry of the profile : the addition of 0,5 parts of BLUESIL ADD 916 improves the visual quality of profiles after vulcanization.

Asia Pacific;Europe Middle East Africa;Central and South America;North America




Elongation280MonocompNF ISO 37%
Hardness73MonocompASTM D 2240sh.A
Tensile strength8.3MonocompNF ISO 37MPa