| Customization: | Available |
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| Material: | Natural Rubber |
| Usage: | Industrial Rubber Slab, Industrial, Flooring, Printing, Rubber Floor Covering |
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Product Description
The Natural Rubber Sponge Sheet by Qingdao Grand Rubbers Co., Ltd is a sophisticated, versatile material crafted from premium-grade natural rubber. It showcases remarkable flexibility, superior durability, and an impressive resistance to wear and tear. The ingeniously designed sponge structure offers exceptional compression set resistance, making it a top-tier choice for sealing, gasketing, insulation, and cushioning applications. This product is the ideal solution for industries seeking eco-friendly, high-performance materials that exhibit extraordinary physical properties.
Key Features
Flexibility & Compression Resistance: The innovative sponge structure of this natural rubber sheet delivers outstanding flexibility, ensuring an effective seal and providing superior cushioning. Its resistance to compression guarantees consistent, long-term performance.
Durability: Boasting excellent resistance to wear, tear, and the effects of aging, this natural rubber sponge ensures an extended service life, even under the most challenging conditions.
Good Insulation Properties: This material offers exceptional thermal and sound insulation, making it a perfect fit for automotive, construction, and HVAC applications, where performance matters.
Water Resistance: Inherently water-resistant, this sponge sheet retains its superior properties even in moisture-rich environments, ensuring reliable performance.
Eco-friendly: Crafted from natural rubber, this sponge sheet is biodegradable, presenting an environmentally friendly alternative to synthetic rubber products, appealing to eco-conscious industries.
Non-toxic & Safe: This non-toxic material is safe for a diverse range of industrial and consumer applications, including sensitive sectors like the food and pharmaceutical industries.
Seals & Gaskets: Ideally suited for crafting seals and gaskets used in automotive, construction, and industrial machinery, ensuring reliability and efficiency.
Cushioning & Padding: Perfect for applications in packaging, automotive interiors, and protective packaging, thanks to its impeccable cushioning properties.
Sound Insulation: An excellent choice for soundproofing industrial and commercial environments, delivering effective noise reduction.
Thermal Insulation: Widely used in the HVAC sector for insulating pipes, ducts, and other essential equipment, optimizing energy efficiency.
Medical & Food Industry: Approved for safe use in medical devices and food-processing equipment due to its non-toxic characteristics, ensuring safety and compliance.
| Property | Test Standard | Value |
| Polymer Type | Natural Rubber | |
| Hardness (Shore A) | ISO 868:2003 | 40 +/- 5 |
| Tensile strength (Mpa) | ISO 37:2017 | ≥22 |
| Elongation at break (%) | ISO 37:2017 | ≥700 |
| Tear Resistance (N/mm) | ISO 34-1:2015 | ≥60 |
| Abrasion Resistance at 5N (mm³) | ISO 4649:2017 | ≤60 |
| Density (g/cm³) | 1.05 +/- 0.05 | |
| Compression Set after 22h at 70ºC (%) | ISO 815-1:2014 | ≤30 |
| Operating Temperature (ºC) | -40ºC to 80ºC |
| Property | Test Standard | Value |
| Hardness change after 168h at 70ºC (Shore A) | ASTM D573-04(10) | ≤5 |
| Tensile strength change after 168h at 70ºC (%) | ASTM D573-04(10) | ≤-15 |
| Elongation at break change change after 168h at 70ºC (%) | ASTM D573-04(10) | ≤-25 |
| SBR | Working Temperature | -30°C-80°C | |
| Tensile strength | 2-8mpa | ||
| Hardness | 50-80 Duro | ||
| NBR | General Grade | High Grade | |
| Material Selection | SBR/NBR | Nitrile | |
| Working Temperature | -30°C-80°C | -30°C-110°C | |
| Tensile strength | 3-8mpa | ||
| Hardness | 50-80 Duro | ||
| CR | General Grade | High Grade | |
| Material Selection | SBR/CR | Neoprene | |
| Working Temperature | -30°C-80°C | -30°C-110°C | |
| Tensile strength | 3-8mpa | ||
| Hardness | 50-80 Duro | ||
| EPDM | General Grade | High Grade | |
| Material Selection | SBR/EPDM | EPDM | |
| Working Temperature | -30°C-80°C | -30°C-110°C | |
| Tensile strength | 3-8mpa | ||
| Hardness | 50-80 Duro | ||
| Silicone | Working Temperature | -50°C-220°C | |
| Tensile strength | 6-8mpa | ||
| Hardness | 60-70 Duro | ||
| Insulation | Polymer Content | 100% SBR | |
| Working Temperature | -30°C-100°C | ||
| Proof Voltage | 15KV-50KV | ||
| Color | Black, Grey | ||
| Surface | Smooth/ fine rib | ||
| Antistatic /ESD |
Material | NBR/SBR | |
| Working Temperature | -30°C-100°C | ||
| Top Layer | 107-109Ω | ||
| Bottom Layer | 103-105Ω | ||
| Color | Green+black | ||
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