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Did you know?
Many latex products are being substituted with silicone. Latex can cause allergic reactions, but silicone has no inherent toxic or physiologically harmful effects.


About Medical Silicone


Silicone rubber is an extraordinary material. With subtle alterations to its chemistry the changes in properties can produce material safe enough for baby bottle teats, and parts tough enough to withstand the demands of jet engines.

It has the following advantages:

  • Biocompatible and non toxic
  • Withstands common sterilization methods
  • Operating temperature range of -50ºc to +250ºc
  • Hardness ranging from 10 to 90 Shore A
  • Can be pigmented to virtually any colour
  • Inherently flame retardant
  • Weather and ozone resistant
  • Electrically conductive / insulating

Silicone is perfect for medical, pharmaceutical and food applications and Primasil use the following types:

  • High Consistency Silicone Rubber (HCR)
  • Fluorosilicone Rubber
  • Platinum-Cure Silicone
  • Liquid Silicone Rubber (LSR)

Primasil are the UK leaders in the formulation and mixing of high consistency, fluorosilicone, and platinum-cure silicone compounds. Each compound can be customised to exactly meet our customers requirements.




Primasil Silicones Ltd., Kington Road , Weobley, Herefordshire, HR4 8QU, UK. tel: +44(0)1544 312600