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Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Specifications
Brand Name :
3A Rubber
Model Number :
3A1002
Certification :
ISO9001
Place of Origin :
China
MOQ :
100kgs
Price :
USD6.00/kg
Payment Terms :
L/C,T/T,D/P,Western Union,
Supply Ability :
100000kgs/month
Delivery Time :
7-15days
Packaging Details :
packing in rolls and pallets
Description
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
A high-performance sealing material with excellent temperature resistance and impermeable closed-cell structure.
Product Specifications
Material Virgin silicone sponge, silicone foam
Cell Structure Close cell
Available Colors Red, white, grey, black, beige, brown, blue, etc.
Surface Finish Double impression fabric, smooth
Tensile Strength 100-200PSI
Hardness 5, 10, 15, 20, 25, 30, 35, 40+/-5 shore A (currently 20-25 shore A)
Elongation 100%
Density 0.35-1.00g/cm³
Temperature Range -40°C to +220°C (momentary maximum 260°C)
Standard Sizes 0.8-50mm * 1.0m * 10m
0.8-50mm * 1.2m * 10m
5.0-50mm * 1.5m * 10m
Closed-Cell Silicone Sponge Sheet Features
  • Waterproof & Airtight Seal: Excellent barrier against moisture, air, dust, and many gases
  • Low Compression Set: Maintains sealing force and returns to original shape after compression
  • High-Temperature Resistance: Continuous range from -60°C to 200°C (-76°F to 392°F)
  • Environmental Resistance: Withstands weathering, UV radiation, ozone, and many chemicals
  • Flame Retardant: Meets UL 94 V-0 standards for electrical and transportation uses
  • Buoyant: Naturally floats due to sealed-cell structure
Key Selection Parameters
  • Thickness: 0.8mm (1/32") to 12mm (1/2") or more
  • Density: 15 to 35 lbs/ft³ (pcf)
  • Firmness: Asker C 10 (very soft) to Asker C 40 (firm)
  • Compression Force Deflection (CFD): Critical for seal design and closure force calculations
  • Curing Types:
    • Peroxide-Cured: Standard industrial grade
    • Platinum-Cured: For medical, food contact, and high-purity applications
Common Applications
  • Environmental Sealing: Outdoor LED lighting, electrical cabinets, HVAC systems, automotive/aerospace
  • EMI/RFI Shielding: When laminated with conductive materials
  • Thermal Insulation: High-temperature pipe and fitting insulation
  • Cushioning & Damping: Vibration damping for sensitive equipment
Material is typically die-cut into custom gaskets or available in rolls/sheets for fabrication. Often comes with pressure-sensitive adhesive (PSA) backing for easy installation.
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
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Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness

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Product Detail
Brand Name :
3A Rubber
Model Number :
3A1002
Certification :
ISO9001
Place of Origin :
China
MOQ :
100kgs
Price :
USD6.00/kg
Contact Supplier
video
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness
Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness

SANHE 3A RUBBER & PLASTIC CO., LTD.

Verified Supplier
11 Years
hebei
Since 2007
Business Type :
Distributor/Wholesaler, Agent, Importer, Exporter, Trading Company, Seller
Main Products :
Industrial Rubber Sheet, Silicone Rubber Sheet, High Temperature Rubber Sheet
Total Annual :
2000000-5000000
Employee Number :
800~1000
Certification Level :
Verified Supplier
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