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SILOCELL High Temp Silicone Sponge Sheet

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Quick Overview

This high temperature silicone sponge with stand up to 300°C intermittently.

Rubber sheet tolerance allowance - width 3%, length 5%.
Sold per linear metre.
67.6 67.6
72.5 72.5
84 84
93.3 93.3
96.8 96.8
98.9 98.9
120.2 120.2
137.1 137.1
168.3 168.3
Article No. Thickness
Price Qty
3044241 1.5000
3044242 2.0000
3044243 3.0000
3044244 4.0000
3044245 5.0000
3044246 6.0000
3044247 8.0000
3044248 10.0000
3044249 12.0000
3044250 15.0000 Not available online - Please call for details.
3044251 20.0000 Not available online - Please call for details.
3044252 25.0000 Not available online - Please call for details.


Polymax Silicone rubber sponge sheet is the preferred choice of medical, pharmaceutical and food processing industries.

Most commercially available silicone sponge products are made from gum based polydimethylsiloxane (PMDS). The polymer is chemically expanded when heat cured to create the closed cell sponge structure. Closed cell means that the cells are non-interconnecting; therefore they do not allow water to wick through the sponge. Generally, silicone sponges have superior mechanical properties and are considered to have a complete closed cell structure.

Expanded closed cell silicone sponge offers many of performance benefits of solid silicone in a softer and more compliant form.

Key Benefits of Closed Cell Silicone Sponge:

  • Wide operating temperature - silicone sponge has a temperature range of -73°C to 200°C
    We sell a high temperature version for use up to 270°CC, please contact a member of the sales team for more information
  • Water sealing – the closed cell structure allows for good water sealing with relatively low compressive forces.
  • Compression set resistance – silicone offers excellent compression set resistance (ability to rebound to original thickness), especially at higher temperatures, compared to most rubber material. Low compression set silicone sponges are available for even better performance than general purpose grades.
  • UV and ozone resistance – silicone products have excellent UV and ozone resistance due in part to their inorganic backbone. This provides long term performance.
  • Rugged – when silicone is required, silicone sponge parts are more durable than some other products openly available.
  • Outdoor gasketing – considering all the above benefits, silicone sponge is a good material choice for outdoor environments, from the arctic to the desert.

Typical or common uses of silicone sponge are namely gaskets, cushioning and sealing, but have been known to be used in many other applications. 

Polymax silicone sheets are available in 1 metre widths and can be bought in a 10 metre roll or cut to varying lengths of full 1 metre. Colours include; white, red oxide and black and come in a range of thicknesses between 1.5mm and 30mm and also varying densities.

Please ring an advisor if you need more advice on colour options and availability.

Additional Information

Colour White
Material Silicone (VMQ)
Width (mm) 1000.0000
Sell by the metre Yes
Hardness (Shore A) 9.7
Maximum Temperature (°C) 270.0000
Minimum Temperature (°C) -60.0000
Density (g/cm³) 0.2600
Tensile Strength (MPa) 0.4400
Elongation at break (%) 148.9000
Compression Set (%) 0.6000
Compression Set Testing Parameters 22h @ 70

Further Information (File Downloads)