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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

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,MoneyGram

Supply Ability : 100000kgs/month

Delivery Time : 7-15days

Packaging Details : packing in rolls and pallets

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Close Cell Silicone Sponge Sheet

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

A compressible foam material with completely sealed gas-filled cells, created through specialized expansion and curing processes of silicone rubber. This structure provides exceptional impermeability to air and water.

  • 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

Product Tags:

closed cell silicone sponge sheet

      

silicone sponge sheet 20-25 Shore A

      

industrial rubber sheet 0.8-50mm thickness

      
China Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness factory

Closed Cell Silicone Sponge Sheet 20-25 Shore A, 0.8-50mm Thickness Images

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