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Item Code: RC02101

Silicone Sponge Sheets

Soft & Flexible | Silicone Sponge Sheets

Our silicone sponge sheets are the perfect product for applications which require a soft, easily deformed material which standard rubber simply can not provide. This particular product is available in a sheet size of 1m x 1m. We can supply thicknesses from 1.5mm to 30mm. We can also provide a variety of application specific grades. This ensures that you always get the perfect product to match your specific requirements.

This product features a closed cell structure and a smoother outer wall. This ensures that liquid and gas are unable to pass through the sheets, providing excellent insulation and sealing properties. Our silicone sponge sheets also feature a wide functioning temperature range from -60°C  to 200°C.

These features make this product highly versatile, and able to replace standard rubber in a variety of applications.

The Rubber Company can supply silicone sponge sheets in four standard densities:

  • P10-soft
  • P16-medium
  • P24-firm
  • P33-extra firm

However, we can provide other densities for certain applications on request.

Key Features

  • Highly versatile product
  • Excellent thermal stability
  • Good resistance to weathering, UV and Ozone damage
  • Wide functioning temperature range
  • Good thermal insulator
  • Excellent sealing capabilities
  • Resistant to mildew and bacteria
  • Easy to cut to size

High Quality Material

We manufacture our silicone sponge sheets using high quality silicone rubber, and infusing it with organic peroxides, silica fillers and blowing agents. This combination of compounds gives our product the look and characteristics of sponge while maintaining the useful properties of silicone.

Our silicone sponge sheets are a closed cell material. This means that the inner cells of the material of non-connecting, which prevents water from passing through the material. Typically, silicone sponges offer superior mechanical properties and are considered to have a complete closed cell structure.

Silicone sponge features a broad functioning temperature range from -60°C  to 200°C. This enables our product to maintain its useful properties in sub zero temperatures, unlike other materials which can become brittle. Our silicone sponge sheets also offer excellent resistance to weathering, UV as well as Ozone damage. This ensures long term performance in both interior and exterior applications.

Potential Applications

  • Environmental shields
  • Electrical and automotive gaskets
  • Sealing applications
  • Medial equipment
  • Access panels

Finish: Smooth both sides.

Sizes: Our standard silicone sponge sheets come in 1m widths to 10m lengths. Sheets above 15mm thickness are supplied in 1m x 1m sheets.

Standard Colours: Black, White, Red Oxide, Blue. Other colours available on request.

The Rubber Company supply a wide range of silicone sponge products to suit almost any application or environment. Our friendly staff are always on hand to ensure you get the best product to suit your unique requirements.

If you haven’t found what you are looking for, you can view our full range of silicone sponge products here.

Silicone Sponge Spec

Silicone Sponge Sizes


Application Environmental shields, Electrical and automotive gaskets, Seals, Medial equipment
Product Sponge sheets
Material Silicone compound with organic peroxides, silica fillers and blowing agents.
Maximum Temperature 200°C
Minimum Temperature -60°C
Colour Black, White, Red Oxide, Blue

The Rubber Company

Unit 27 Romsey Industrial Estate

Greatbridge Road



SO51 0HR

United Kingdom

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Registered in England & Wales Company Number: 08350831 VAT Number: GB 156 8355 80