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Natural Open Cell Rubber

Natural Open Cell Rubber is available in both low and high densities, making it suitable for a wide range of industrial and commercial uses

Natural Open Cell Rubber Uses

This was the original form of sponge rubber, produced by incorporating a blowing agent – such as baking soda – into the uncured rubber compound. As it cures under low pressure, the material expands in a way similar to how a cake rises. The baking soda creates a network of interconnected, open cells throughout the material.

Material Uses

  • Industrial cushioning.
  • Sound absorption.
  • Environmental – dust & dirt seals.
  • Space fillers.
  • Mechanical vibration dampening.
  • Air filters.
  • Thermal barriers and insulating, and shock absorbing padding.
  • Die Ejection.

Explanation & Properties

An open cell structure means that each cell is connected to the next, allowing air, gas, or water to move freely between them. Compared to closed cell materials, open cell sponge has superior compression recovery. When compressed, air quickly escapes from the cells; once released, air re-enters, allowing the material to return to its original shape – much like a household sponge.

Material Properties

  • Excellent compressibility and Recovery.
  • Resilience.
  • Absorbency.
  • Flexibility at low temperature.
  • Elasticity and excellent surface adhesion.
  • Good Anti Vibration Properties.

Specifications

Open cell sponge rubber is available in both low and high densities. Its natural form is widely used in various industrial and commercial applications. Notably, it serves as an excellent spring ejector in cutting die assemblies, offering reliable performance and resilience, even when over-compressed. Contact our team today for specialist information and product ordering.

Datasheet
Download the datasheet for Natural Open Cell Rubber Sponge Material.
File size: 335kb

Clear Filters
100 Black – Medium Density
100 Black is a medium - density natural open cell rubber with a Shore A hardness of 15, offering excellent flexibility and resilience
400 Tan – Medium Density
Known for its balance of softness and structural integrity, it is ideal for applications requiring dependable compression recovery and flexibility
500 Red – Firm Density
500 Red is a firm density natural open cell rubber with a Shore A hardness of 25, offering a versatile balance between resilience and compressibility
600 Grey – Extra Firm Density
600 Grey is an extra firm density natural open cell rubber with a Shore A hardness of 35, providing robust support and excellent durability
600 Red – Extra Firm Density
600 Red is an extra firm density natural open cell rubber designed for demanding applications where greater resistance and durability are required
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