General Purpose Silicone Rubber Sheet (40°Shore)

HT800 Sponge Strip

General Purpose Silicone Rubber Sheet (40°Shore)

From £26.32 Exc VAT

In stock

From £26.32 Exc VAT

Peroxide-Cured Silicone Compound is a high-performance, solid silicone material developed for extrusion, moulding, and calendaring applications.
It provides excellent mechanical strength, colour stability, and reliable performance across automotive, engineering, and industrial sectors.

These peroxide-cured grades offer outstanding heat resistance and compression-set properties while maintaining flexibility and resilience at low temperatures.
Operating range −60 °C to +250 °C (intermittent peaks to +300 °C).
Suitable for both continuous production and precision moulding work.

  • Five Standard Colours: Available in translucent, white, red oxide, blue, and black.
  • Reliable Processing: Performs consistently in extrusion, moulding, and calendaring applications.
  • Heat and Compression-Set Resistant: Ideal for high-temperature environments and long-term sealing performance.

Fully compliant with FDA 177.2600 and EC 1935/2004 standards.
For alternative grades or any product-related enquiries, please contact our Sales Team.

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Description

    GP20 GP 30 GP 40 GP 50 GP 60 GP 70 GP 80  
Property Units Typical Value Typical Value Typical Value Typical Value Typical Value Typical Value Typical Value Test Method
  Hardness  Shore A ±5 20° 30° 40° 50° 60° 70° 80° DIN ISO 7619-1
Tensile Strength Mpa (PSI) 10,1 (1464) 8.0 (1150) 9.0 (1300) 9.0 (1300) 10.0 (1450) 10.0 (1450) 7.0 (1015) ISO 37 type 2
Elongation to Failure % 979 500 525 450 400 320 215 ISO 37 type 2
 Tear Strength   N/mm (lb./in.) 25,0 (142) 16.0 (91) 23 (130) 18 (100) 22 (125) 20 (115) 17 (88.5) ASTM D624 die B
Compression Set 24 Hrs @ 150°C  % 23 23 25 15 13 9 18 DIN/ISO 815    type B
 Compression Set 22 Hrs @ 300°F % - 20 22 16 10 10 16 ASTM D395 method B type 2

Additional information

Colour

Black, Blue, Red Oxide, Translucent, White

Thickness

0.3mm, 0.5mm, 0.6mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm, 12.0mm