Product
Closed Cell EPDM Rubber Foam Sheet
Specifications:
Density: 80–220 kg/m³ for flexible applications.
Hardness: ASKER C 7°–25° (soft to firm).
Color Options：Black, Blue, White, or Customized
Tensile: ≥0.25 MPa, durable under stress.
Elongation: ≥120%, tear-resistant and flexible.
Compression: 10–90 kPa at 25% strain.
Temperature: -50°C to +130°C wide range.
Insulation: Thermal conductivity as low as 0.037 W/mK.
Weather: Excellent UV, ozone, and aging resistance.
Waterproof: Low absorption (≤5%), closed-cell structure.
Chemical: Resists acids, alkalis, and polar solvents.
Non-corrosive: Sulfur-free grades protect metals.
Customizable: Slitting, die-cutting, and adhesive backing.
Product Details
Closed Cell EPDM Rubber Foam Sheet by Qingdao Guanshan Industry Co., LTD is engineered for superior sealing, thermal insulation, and weatherproofing. Featuring a high-density closed-cell structure, this EPDM sponge sheet completely blocks out water, air, ozone, and UV rays, making it an ideal choice for both indoor and outdoor demanding environments.
Whether used for custom gaskets, automotive vibration dampers, or HVAC thermal barriers, our EPDM foam delivers long-lasting elasticity, chemical stability, and mechanical resilience.
Technical Index Table
| Item | Density | Hardness | Tensile Strength(>=) | Elongation(>=) | 25% Compression | water absorption(<=) | 25% Compression Change(<=) | Flame Retardant |
| EPDM | KG/m3 | Shore C | Kpa | % | Kpa | % | (70 C x 22 H)% | >=3mm |
| B08 | 110+/-30 | 8+/-3 | 200 | 150 | 20-40 | 10 | 25 | NA |
| B10 | 130+/-30 | 10+/-3 | 300 | 150 | 20-50 | 5 | 25 | NA |
| B15 | 140+/-30 | 15+/-3 | 300 | 150 | 20-50 | 5 | 25 | NA |
| B20 | 150+/-30 | 20+/-3 | 400 | 150 | 35-65 | 5 | 25 | NA |
| B20V | 150+/-30 | 20+/-3 | 300 | 150 | 35-65 | 5 | 25 | HBF |
| B20TV | 175+/-25 | 20+/-3 | 400 | 150 | 35-65 | 5 | 20 | HBF |
| B25 | 180+/-30 | 25+/-3 | 600 | 150 | 50-100 | 5 | 25 | NA |
| B30 | 220+/-50 | 30+/-3 | 1000 | 150 | 70-120 | 5 | 25 | NA |
| B05 | 75+/-15 | 5+/-3 | 200 | 120 | 10-20 | 10 | 25 | NA |
Key Features:
Dense closed-cell structure, waterproof & airtight
Excellent ozone & UV resistance, long service life
Superior weather & aging resistance, suitable for outdoor use
Good flexibility, elasticity and compression resistance
Effective heat insulation, sound absorption and shock absorption
Chemical corrosion resistance, easy to cut & install
Q1: Can you provide free samples of the Closed Cell EPDM Rubber Foam Sheet?
A: Yes, we offer free A4-sized or small sample swatches for your quality evaluation. You only need to cover the express freight cost.
Q2: What is your Minimum Order Quantity (MOQ)?
A: For standard thickness and size, our MOQ is [如：200 sheets / 500 sqm]. For customized density, color, or special dimensions, please contact our sales team to discuss details.
Q3: Can you supply EPDM foam sheet with self-adhesive backing (PSA)?
A: Yes, we can laminate high-quality single-sided or double-sided adhesive (acrylic or rubber-based) onto the foam sheet according to your bonding requirements.
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