BLUESIL HCR 970 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 HCR 970 U is silicone master batch compound, vulcanising on heating after addition of a vulcanizing agent (chosen according to the transformation process).

Heat Protection;High Temperature Protection

HCR Masterbatch

  • Slight refreshening after prolonged storage
  • Easy to process
  • No post curing or slight post curing
  • Good heat stability, up to 225ºC, 250ºC using additive 744

Bluesil HCR 970 U is recommended for moulding, injecting and extruding articles with good mechanical properties (in particular a low compression set, high resiliency and remarkably low tack).

Asia Pacific




Hardness70MonocompASTM D 2240sh.A
Elongation450MonocompNF ISO 37%
Density1.17MonocompISO 2781g/cm3
Tear strength20MonocompASTM D 624AN/mm
Tensile strength8.5MonocompNF ISO 37MPa