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Silicone Rubber

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Liquid Silicone rubber

Multipurpose silicone is a two part silicone rubber, which cures at room temperature within 2 5 hours depending on the percentage catalyst added. It has excellent flow ability and is easy to demould. The rubber has good tensile and tear strength combined with low shrinkage. Multipurpose silicone is suitable for casting Polyester resins, polyurethane, plaster, candle wax, and soap.


Appearance: White silicone rubber base
Mixing Ratio: Between 3% and 4% by weight
Working time: Between 60 180 minutes depending on catalyst addition ratio
Demould time: Between 3 and 8 hours depending on catalyst addition ratio
Hardness Shore A: 18 - 22
Density: g/cm3 1.08
Tensile Strength: kg/cm2 >36
Viscosity: @ 25 Deg C 13000 15000 cps
Tear Strength: Kg/cm > 23
Elongation @ Break: > 440%
Shrinkage: < 0.30%

Shelf Life

Twelve months from date of shipment when stored in the original container at 25deg C.


25 kg kegs, 5 kg buckets and 1 kg tubs

The information and recommendations on this data sheet are to the best of our knowledge, reliable. However nothing herein is to be construed as a warranty or representation. Users should make their own tests to determine the applicability of such information or the suitability of any products for their own particular purposes

  • 1kg = R275.00
  • 5kg = R1325
  • 25kg = SQ
  • Prices subject to change without notice, accurate till end August 2016

To order or discuss your requirements please contact us via email

How too use

For more information on how to use silicone rubber and detailed information look at the information in our silicone moulding section.