BLUESIL MF 8140 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 8140 U is a silicone master batch, heat curing after addition of a vulcanization agent (chosen according to the processing method).

Fire Protection;Heat Protection;High Temperature Protection;Sealing

HCR Masterbatch


  • Slight refreshening after prolonged storage.
  • Easy processing.
  • No or very little post-curing.
  • Good dielectric properties.
  • Good heat stability up to 250°C.
  • Major potential for post-filling and blending.
  • Good compromise of mechanical properties.
  • Easy to obtain bright colours.
  • Very good resistance to oxidizing agents (oxygen, ozone, UV)


BLUESIL MF 8140 U although especially recommended for cabling, can be processed using traditional techniques and on equipment widely found in the rubber industry.

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




Density1.10MonocompISO 2781g/cm3
Elongation380MonocompNF ISO 37%
Hardness48MonocompASTM D 2240sh.A
Tensile strength6.7MonocompNF ISO 37MPa