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No special storage precautions noted. Material is stable under normal conditions. Avoid contact with oxidizing agents. For further information, refer to Section 10: "Stability and Reactivity". Use container made of: Suitable plastic material.Please consult the Safety Data Sheet of this product.


Bluesil HCR 940 U is silicone master batch compound, vulcanising on heating after addition of a vulcanizing agent (chosen according to the transformation process.

Fire Protection;Heat Protection;High Temperature Protection;Sealing

HCR Masterbatch


  • Slight replastification after prolonged storage
  • Easy to process
  • Without post-cure or slight post-cure
  • Good heat stability, up to 225ºC, or even 250ºC with additive 744

Bluesil HCR 940 U is recommended for:

  • Moulding, injecting and extrusion of articles with a good compromise of mechanical properties.

Asia Pacific

For information about Storage and Shelf Life for this product, please download the Technical Data Sheet.




Hardness42MonocompASTM D 2240sh.A
Elongation650MonocompNF ISO 37%
Density1.1MonocompISO 2781g/cm3
Tensile strength9.1MonocompNF ISO 37MPa