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ExpandedRubber Products (UK) Ltd

Tel: +44 (0) 1384 442 310                

Fax: +44 (0) 1384 442 599



Open Cell
Natural Rubber: Industrial Sponge



Natural Rubber


Black as
  Standard / colours available

Density – ASTM D1056-85


1A2 Medium

Cell Structure

Open Cell –
  Skin/Skin finish (chalk Free)

Shore hardness (A)

12-15 Average

Temperature Limits

+ 70 deg C / -
  40 deg C

  85 deg C

Tensile Strength – DIN 53577

295 KPa

Compression Deflection @ 25%
  - ASTM D1056

5-9 PSI

Compression Set

50% Deflection @ 70 deg C –
  ASTM D1056


15% Maximum





Accelerated Ageing:

% Change In Compression
  Deflection @ 70%


+/- 20%



The above information provided / obtained supplied in accordance with Accepted test methods as above listed.
All information is given in good faith without warranty, and should be considered as guideline on specification only. The end user must determine the suitability of the material for their desired application / requirement


Further information:   Open Cell Sponge Rubber possesses and interconnected cell structure which will permit limited absorption andcirculation of gasses and fluids, Outer surfaces of the material is continuous (Rather than porous) and Exhibit good physical durability. Because Air can pass freely between its cells,
this sponge offers a high degree of compressibility and displays fast recover upon release from compression. Open Cell sponge should not be used where fluid
penetration is required unless protected with a surface covering.

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