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Products and Services
sil400 (platinum cure)


Platinum cured materials have been designed to increase the productivity of the moulding operation. The rapid reaction of the platinum catalyst means that thicker section parts can be cured in a faster time at the same moulding temperatures as the usual peroxide system. For thicker section parts these can be cured at lower temperatures without risk of ""back-grinding"" or ""scorch"" of the parts.

The platinum cure systems also produce no peroxide residues, which can cause mould fouling, thereby reducing down time.
This cure system results in a material with good hot tear strength, which is useful for de-moulding parts with complex geometries and undercuts.

Platinum cured materials are more sensitive to catalyst poisons than peroxides, but the Primasil technicians will offer guidance as to situations to avoid with these materials.

Durometer Hardness (Shore A)20 – 70
Specific Gravity (g/cm3)1.1 – 1.25
Tensile Strength (Mpa)3 – 9
Elongation (%)300 – 650
Tear Strength (N/mm)10 - 40
Catalyst typePlatinum
Compression Set % (22h @ 175°C)10 – 30
ApprovalsFDA
Colours available: All

Download Data Sheet

For information regarding Health and Safety, please refer to the Health and Safety Data Sheet available from health&safety@primasil.com



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