Silicone Sponge Sheet - General use

Expanded closed cell (skinned) silicone sponge sheeting offers many of the performance benefits associated with solid silicone, but in a softer and more compliant form. Silicone Sponge Sheet and strips are available in various sizes, densities, colours and with self-adhesive backing on request. 

Standard thicknesses are available in an off-white 17 kg/m3 density.
 
Key Benefits of Closed Cell Silicone Sponge
  • Wide operating temperature – silicone sponge has a temperature range of -60C to 260C
  • 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 organic 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.
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 said, silicone sponges have superior mechanical properties and offer many of the performance benefits of solid silicone in a softer and more compliant form
General specification
Applications: When a soft, readily deformable rubber is needed, such as for high-temperature seals and gaskets, general-use sponge silicone rubber is a good choice. To make assembly simpler, pressure-sensitive adhesive backing is included for all of the sheets and punched pieces.
Resistance to: Silicone rubber has excellent resistance to ozone, oxidation, ultraviolet light, corona discharge, cosmic radiation, ionising radiation and weathering in general. Typical radiation resistance is greater than 10 Grays (greater than 10 rads).
Temperature resistance °С

-60C to 260C

Color Standard: White
Approvals: Meets the flammability requirements of FAR 25/JAR25/CS 25 Appendix F, Part 1 (a) (1) (iv) and (a) (1) (v) horizontal flammability test and Automotive Standard Part 571FMVSS302
Technical datasheet


Sheeting

SIL10SIL16SIL24SIL33
PropertyUnitsTypical ValueTypical ValueTypical ValueTypical ValueTest Method
  Density *kg.m³ lb.ft³200 12.5250 15.6400 25550 34.3BSENISO 845 ASTM D3574
Hardness **Shore OO Shore A35 ±5 <542 ±5 565 ±5 1780 ±5 30ASTM D2240
Compression Stress 40% Strain ***kPa PSI50 4.690 6.4165 11.9470 34.8BSENISO 3386 Part 1,2 ASTM D1056
 Tensile Strenght MPa PSI0.6 870.6 870.75 1082.0 290BSENISO 1798 ASTM D412
Elongation to failure%140145120130BSENISO 1798 ASTM D412
 Compression Set 50% Compression 24hrs Recovery, 22 hrs 70°C (158°F)%15.012.010.09.5BSENISO 1856
Compression Set 50% Compression 24hrs Recovery, 22 hrs 100°C%18.014.512.012.0BSENISO 1856
Water Absorption%<5<5<52ASTM D1056

Applications

  • Industrial Sealing
  • Automotive Applications
  • Chemical Resistance

FAQ

What is the material composition of the Silicone Sponge Sheet?
The Silicone Sponge Sheet is made from expanded closed cell silicone, providing a softer and more compliant form compared to solid silicone.
What thicknesses are available for the Silicone Sponge Sheet?
Standard thicknesses are available in an off-white 17 kg/m3 density.
Can the Silicone Sponge Sheet be customized?
Yes, the Silicone Sponge Sheet and strips are available in various sizes, densities, colors, and with self-adhesive backing upon request.
Expert Advice: For optimal performance, ensure proper installation and consider the specific application requirements when selecting size and density.

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Silicone Sponge Sheet

    Italy
  • Brand: Italy
  • Product Code: Silicone Sponge Sheet
  • Availability: ✅On stock

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Tags: Silicone, Sponge, Sheet