General Purpose Silicone Rubber Sheet (40°Shore)
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.
- Description
- Additional information
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 |






















