Open Cell EPDM Sponge Rubber
Key Features
- High performance sealing material
- Open-cell with similar properties to closed-cell
- Superior flexibility and recovery
- Excellent ageing performance
- Low compression load
- Fungus free
- Good weathering, UV, and ozone resistance
- Range of densities and thicknesses available
Product Description
Our open cell EPDM sponge is a versatile, high-performance sealing material used across many industrial applications. It delivers the durability, weather resistance, and UV/ozone stability you’d expect from closed cell EPDM, but with the added flexibility and excellent compression recovery of an open cell structure – ideal for sealing, cushioning, and gasketing uneven or irregular surfaces. Produced at a standard density of 65 kg/m³ and offered in thicknesses from 1 mm to 40 mm, this material is available as full rolls, sponge sheets, strip-cut lengths, sealing strips, or custom-made gaskets, with optional laminations or adhesive backing for easier installation.
Its unique semi-closed cell structure provides the softness of an open-cell material while still achieving an air and watertight seal at 80% compression, making it suitable for demanding and high-pressure sealing environments. It is also widely used as a replacement seal for vacuum lifters, vacuum pads, and grippers, where worn seals reduce lifting performance; we supply precisely cut vacuum lifting seals in a range of opening patterns and thicknesses to match your equipment.
Specifications
| Application: | Creating a seal in irregular or uneven gaps. Interior and exterior sealing applications |
| Product: | Open Cell EPDM Sponge |
| Material: | Semi-Open Cell EPDM |
| Colour: | Black |
Potential Applications
- Interior and exterior applications
- Complex gap seals against water, wind, dust, noise, and heat
- Automotive industries
- Air duct seals
- Vacuum lifters and grippers
- Product packaging and protection
- Full rolls, strip cut lengths, gaskets, and adhesive tapes
Technical Data
| Properties | RC02107-800 | RC02107-801 | |
|---|---|---|---|
| Compound | EPDM | EPDM | |
| Density | 65-85 kg/m³ | 70-100 kg/m³ | |
| Tensile Strength | 115 kPa | 120 kPa | |
| Elongation at Break | 200% | 190 % | |
| Compression Set (22 h @ 23°C, 50%) | 19% | ||
| Compression Deflection (25%) | 1.5 kPa | 2-4 kPa | |
| Compression Deflection (50%) | 2.5 kPa | 5-8 kPa | |
| Flame Resistance | Self Extinguishing | Self Extinguishing | |
| Working Temperature Range | -40° C to +120° C | -30° C to +120° C |
