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Silicone Rubber Sponge Strips

Not Available to Buy Online - Please contact us for more information.

 +44 (0) 1420 474123
 sales@polymax.co.uk

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Quick Overview

Silicone sponge strip offers many of the performance benefits associated with solid silicone, but in a softer and more compliant form.

Polymax silicone expanded closed cell sponge strips are available in various widths and thicknesses and are available in a 10 metre roll or bought in minimum lengths and multiples of 5 metres. The strips are slit from sheet but are also available as an extrusion (skinned)

Article No. Thickness (mm) Width (mm) Roll Length (m)
Polymax SILICONE SPONGE Strip, 20mm wide x 2mm thick 3010100 22010
Polymax SILICONE SPONGE Strip, 5mm wide x 3mm thick 3010101 3510
Polymax SILICONE SPONGE Strip, 10mm wide x 3mm thick 3010102 31010
Polymax SILICONE SPONGE Strip, 15mm x 3mm thick 3010103 31510
Polymax SILICONE SPONGE Strip, 25mm wide x 3mm thick 3010105 32510
Polymax SILICONE SPONGE strip, 30mm x 3mm thick 3010106 33010
Polymax SILICONE SPONGE Strip, 35mm x 3mm thick 3010107 33510
Polymax SILICONE SPONGE Strip, 5mm wide x 4mm thick 3010108 4510
Polymax SILICONE SPONGE Strip, 10mm x 4mm thick 3010109 41010
Polymax SILICONE SPONGE Strip, 15mm x 4mm thick 3010110 41510
Polymax SILICONE SPONGE Strip, 20mm x 4mm thick 3010111 42010
Polymax SILICONE SPONGE Strip, 5mm wide x 5mm thick 3010112 5510
Polymax SILICONE SPONGE Strip, 8mm wide x 5mm thick 3010114 5810
Polymax SILICONE SPONGE Strip, 10mm wide x 5mm thick 3010115 51010
Polymax SILICONE SPONGE Strip, 15mm wide x 5mm thick 3010116 51510
Polymax SILICONE SPONGE Strip, 20mm wide x 5mm thick 3010117 52010
Polymax SILICONE SPONGE Strip, 25mm x 5mm thick 3010118 52510
Polymax SILICONE SPONGE Strip, 30mm x 5mm thick 3010119 53010
Polymax SILICONE SPONGE Strip, 40mm wide x 5mm thick 3010120 54010
Polymax SILICONE SPONGE Strip, 50mm x 5mm thick 3010121 55010
Polymax SILICONE SPONGE Strip, 8mm wide x 6mm thick 3010122 6810
Polymax SILICONE SPONGE Strip, 12mm x 6mm thick 3010124 61210
Polymax SILICONE SPONGE Strip, 15mm x 6mm thick 3010125 61510
Polymax SILICONE SPONGE Strip, 20mm wide x 6mm thick 3010126 62010
Polymax SILICONE SPONGE Strip, 25mm x 6mm thick 3010127 62510
Polymax SILICONE SPONGE Strip, 28mm x 6mm thick 3010128 62810
Polymax SILICONE SPONGE Strip, 40mm x 6mm thick 3010129 64010
Polymax SILICONE SPONGE Strip, 8mm x 8mm thick 3010130 8810
Polymax SILICONE SPONGE Strip, 10mm x 8mm thick 3010131 81010
Polymax SILICONE SPONGE Strip, 15mm wide x 8mm thick 3010132 81510
Polymax SILICONE SPONGE Strip, 20mm x 8mm thick 3010134 82010
Polymax SILICONE SPONGE Strip, 10mm x 10mm thick 3010135 101010
Polymax SILICONE SPONGE strip, 12mm x 10mm thick 3010136 101210
Polymax SILICONE SPONGE Strip, 15mm wide x 10mm thick 3010137 101510
Polymax SILICONE SPONGE Strip, 16mm x 10mm thick 3010138 101610
Polymax SILICONE SPONGE Strip, 20mm x 10mm thick 3010139 102010
Polymax SILICONE SPONGE Strip, 25mm wide x 10mm thick 3010140 102510
Polymax SILICONE SPONGE Strip, 30mm x 10mm thick 3010141 103010
Polymax SILICONE SPONGE Strip, 35mm x 10mm thick 3010142 103510
Polymax SILICONE SPONGE Strip, 40mm x 10mm thick 3010143 104010
Polymax SILICONE SPONGE Strip, 45mm x 10mm thick 3010144 104510
Polymax SILICONE SPONGE, 50mm x 10mm thick x10m 3010145 105010
Polymax SILICONE SPONGE Strip, 12mm x 12mm thick 3010146 121210
Polymax SILICONE SPONGE Strip, 15mm x 12mm thick 3010147 121510
Polymax SILICONE SPONGE Strip, 20mm x 12mm thick 3010148 122010
Polymax SILICONE SPONGE Strip, 25mm wide x 12mm thick 3010149 122510
Polymax SILICONE SPONGE Strip, 30mm x 12mm thick 3010150 123010
Polymax SILICONE SPONGE STRIP, 35mm x 12mm thick 3010151 123510
Polymax SILICONE SPONGE Strip, 40mm x 12mm thick 3010152 124010
Polymax SILICONE SPONGE Strip, 16mm x 12mm thick 3010153 121610
Polymax SILICONE SPONGE Strip, 15mm wide x 15mm thick 3010154 151510
Polymax SILICONE SPONGE Strip, 20mm wide x 15mm thick 3010155 152010
Polymax SILICONE SPONGE Strip, 25mm wide x 15mm thick 3010156 152510
Polymax SILICONE SPONGE Strip, 30mm x 15mm thick 3010157 153010
Polymax SILICONE SPONGE Strip, 40mm x 15mm thick 3010158 154010
Polymax SILICONE SPONGE Strip, 19mm x 12.7mm thick 3010159 12.71910
Polymax SILICONE SPONGE Strip, 20mm x 20mm 3010160 202010
Polymax SILICONE SPONGE Strip, 25mm x 20mm thick 3010161 202510
Polymax SILICONE SPONGE Strip, 30mm x 20mm thick 3010162 203010
Polymax SILICONE SPONGE Strip, 40mm wide x 20mm thick 3010163 204010
Polymax SILICONE SPONGE Strip, 50mm x 20mm thick 3010164 205010
Polymax SILICONE SPONGE Strip, 25mm wide x 25mm thick 3010165 252510
Polymax SILICONE SPONGE Strip, 30mm x 25mm thick 3010166 253010
Polymax SILICONE SPONGE Strip, 50mm x 25mm thick 3010168 255010
Polymax SILICONE SPONGE Strip, 30mm x 30mm thick 3010169 303010
Polymax SILICONE SPONGE Strip, 40mm x 30mm thick 3010170 304010
Polymax SILICONE SPONGE Strip, 35mm x 35mm thick 3010171 353510
Polymax SILICONE SPONGE Strip, 40mm x 40mm thick 3010172 404010

Details

Expanded closed cell, silicone sponge strip offers many of the performance benefits associated with solid silicone, but in a softer and more compliant form. Silicone Sponge Rubber Sheeting and strips from Polymax Silicone range are available in various sizes, densities, colours and with self adhesive backing (SAB) on request.

Standard strips are available in an off-white (non-SAB) Sil 16 density.

Production - 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 260°C
  • 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. Other colours are available.

Please ask an advisor if unsure

Additional Information

Colour White
Material Silicone (VMQ)
Maximum Temperature (°C) 200
Minimum Temperature (°C) -60
Elongation at break (%) 200
*Dimensions can vary, they are typical only.

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