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Product Name：EPDM 40A-50A Recycled Rubber Grommet
Material：Recycled EPDM rubber (≥ 85% recycled content, customizable)
Hardness：40 ± 5 Shore A; 50 ± 5 Shore A
Color：Black (customizable: gray, white)
Structure：Solid cylindrical grommet with central through-hole (one-piece molded)
Technical Specifications
Parameter | Standard Value | Tolerance | Test Method |
Outer Diameter (OD) | [79.7 mm] | ±0.3 mm | ISO 2780 |
Inner Diameter (ID) | [25 mm] | ±0.2 mm | ISO 2780 |
Thickness/Height (H) | [32 mm] | ±0.2 mm | ISO 2780 |
Operating Temperature Range | -40°C to +100°C | - | ISO 188 |
Compression Set | ≤ 25% (72h, 70°C) | - | ISO 815 |
Tensile Strength | ≥ 6.0 MPa | - | ISO 37 |
Elongation at Break | ≥ 200% | - | ISO 37 |
Recycled Content | ≥ 85% (EPDM fraction) | ±3% | ASTM D6866 |
Ozone Resistance | No cracking (50 pphm, 40°C, 96h) | - | ISO 1431 |
UV Resistance | No degradation (UV-A, 1000h) | - | ISO 4892 |
Performance Characteristics
Soft Cushioning & Sealing: 40A hardness ensures optimal compression for gap filling and vibration absorption in low-load applications.
Sustainable Reliability: High recycled content without sacrificing EPDM’s core resistance to ozone, UV, and temperature extremes.
Deformation Resistance: Low compression set maintains long-term sealing performance under continuous static load.
Easy Assembly: Flexible material enables tool-free installation into panel holes or around shafts.
Safety Compliance: Non-toxic, low-VOC formulation suitable for indoor and automotive interior applications.
Applications
Automotive: Wiring harness protection, pipe sealing, and fastener damping in vehicle interiors/exteriors.
HVAC & Appliances: Fan motor vibration isolation, refrigerant line penetration sealing, and appliance component cushioning.
Industrial: Cable/pipe protection for panel penetrations in light machinery, agricultural equipment, and power tools.
Construction: Solar panel mounting damping, pipe penetration sealing, and building ventilation noise reduction.
Electronics: Battery pack cushioning, control panel insulation, and wiring harness protection.
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Packaging & Storage
Packaging: Carton Packing
Storage: Store in a cool, dry, well-ventilated area (5°C–25°C, relative humidity ≤ 60%), away from direct sunlight, oil, solvents, and sharp objects.
Shelf Life: 18 months from production date under recommended storage conditions.
If you have any questions or needs about the product, please fill in the following form and we wll contact you as soon as possible.
Founded in 2012, We are located in the beautiful city----Qingdao China,IS09001:2015 certificated.
No. 306, 3rd Floor, Building 4, No. 6, Changcheng South Road, Chengyang District, Qingdao City