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Description
Self-Adhesive Sponge Rubber Strip — 8mm Thick
A premium closed cell EPDM sponge rubber strip with a factory-applied self-adhesive backing, supplied as a 5-metre roll. Engineered for weatherproofing, sealing, cushioning, and vibration damping across commercial, industrial, and DIY applications. Available in ten widths from 10mm to 100mm, this strip delivers a reliable, compressible seal that bonds firmly to clean, smooth surfaces and performs consistently from −40°C to +70°C.
| Width | Thickness | Roll Length | Width Tolerance | Thickness Tolerance |
|---|---|---|---|---|
| 10mm | 8mm | 5m | ±1.0mm | ±0.8mm |
| 12mm | 8mm | 5m | ±1.0mm | ±0.8mm |
| 15mm | 8mm | 5m | ±1.0mm | ±0.8mm |
| 20mm | 8mm | 5m | ±1.0mm | ±0.8mm |
| 25mm | 8mm | 5m | ±1.0mm | ±0.8mm |
| 30mm | 8mm | 5m | ±1.5mm | ±0.8mm |
| 40mm | 8mm | 5m | ±1.5mm | ±0.8mm |
| 50mm | 8mm | 5m | ±1.5mm | ±0.8mm |
| 75mm | 8mm | 5m | ±1.5mm | ±0.8mm |
| 100mm | 8mm | 5m | ±1.5mm | ±0.8mm |
| Property | Value / Limit | Test Method |
|---|---|---|
| Compression @ 25% Deflection | 45 kPa (±10%) | ASTM D1056:2007 |
| Compression @ 50% Deflection | 100 kPa (±10%) | ASTM D1056:2007 |
| Compression Set (50%, 22h, 20°C) | 25% max. | ASTM D1056-00 |
| Shore Hardness (00 Scale) | 36° ±5° | — |
| Density | 120 kg/m³ (±20) | — |
| Water Absorption (max. change in weight) | 4% (±10%) | ASTM D1056:2007 |
| Tensile Strength | 400 kPa (±10%) | ASTM D3575:2008 |
| Elongation at Break | 120% (±10%) | ASTM D3575:2008 |
| Heat Ageing (100°C, 72h) — Change in Tensile Strength | 25% (±10%) | ASTM D1056:2007 |
| Heat Ageing (100°C, 72h) — Change in Elongation | −15% (±10%) | ASTM D1056:2007 |
| Flammability FMVSS 302 | Burn Rate <100mm/min — Pass | FMVSS 302 |
| Flammability UL94 HBF | Pass | UL94 |
| Operating Temperature Range | −40°C to +70°C | — |
| Resistance to Air & UV | Excellent | — |
| Resistance to Acids | Good | — |
| Resistance to Oil | Poor | — |
| Environmental Status | CFC and HFC Free — Recyclable | — |
| Slab Size (skin/skin) | 200 x 1000 x 54mm (±4mm) | — |
| Thickness | Tolerance |
|---|---|
| 8mm | ±0.8mm |
* For best adhesion, ensure the application surface is smooth, clean, dry, and free from grease or dust before applying.
* Due to the compressible nature of this product, slight variations in width and thickness are normal and fall within the stated tolerances.
* The above technical figures represent average values. We recommend verifying suitability for your specific application before use.
This strip is available in ten widths: 10mm, 12mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 75mm, and 100mm. All options are 8mm thick and supplied as a 5-metre roll.
Yes. The closed cell EPDM construction provides excellent resistance to UV light, air, and weathering, making it well suited to both indoor and outdoor environments.
Clean the surface thoroughly so it is smooth, dry, and free from grease or dust. Peel back the yellow or white release liner and press the strip firmly into position. The strip can be cut to any length with scissors or a sharp blade.
It operates reliably between −40°C and +70°C, covering the full range of typical UK weather conditions as well as most industrial and automotive environments.
Yes. It is widely used for sealing and cushioning in caravans, motorhomes, vans, trucks, boats, and trailers. It is not recommended where direct contact with fuel, oil, or solvents is expected.
Yes. The expanded closed cell structure prevents water absorption, with a maximum water absorption rate of just 4% by weight, making it an effective waterproof seal in most applications.
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