Commercial EPDM Closed Cell Sponge Rubber Sheet – Marine Grade, Weatherproof, UV & Ozone Resistant

Our Clients

Product Details

Premium EPDM Closed Cell Sponge Rubber

Engineered for extreme environments where conventional materials fail

Technical Specification

Material: EPDM Closed Cell Sponge
Cell Structure: Closed Cell
Temperature Range: -40°C to +120°C
Density: 250-350 kg/m³
Width: 1.4m
Sold: Per Linear Metre

Uncompromising Performance

Our commercial-grade EPDM closed cell sponge rubber sheet represents the pinnacle of synthetic rubber engineering. Manufactured to exacting standards, this material delivers exceptional resistance to water, salt water, weathering, UV radiation, and ozone degradation—making it the material of choice for marine, automotive, and industrial sealing applications.

The closed cell structure provides superior compression set resistance and water impermeability, whilst maintaining excellent flexibility across a wide temperature spectrum. Unlike open cell alternatives, moisture cannot penetrate the cell walls, ensuring consistent performance in wet environments.

Key Performance Characteristics

  • Water & Salt Water Resistant — Impervious to fresh and marine environments
  • Weatherproof Construction — Withstands prolonged outdoor exposure without degradation
  • UV & Ozone Resistant — Maintains integrity under direct sunlight and atmospheric ozone
  • Closed Cell Technology — Zero water absorption, superior compression recovery
  • Temperature Stable — Performs reliably from -40°C to +120°C
  • Excellent Compression Set — Retains sealing force over extended service life

Applications & Industries

Marine & Offshore

Hatch seals, porthole gaskets, deck fittings, hull penetrations

Automotive & Transport

Door seals, window gaskets, vibration damping, weatherstripping

HVAC & Building Services

Duct sealing, thermal insulation, acoustic damping, expansion joints

Industrial Manufacturing

Equipment gaskets, protective padding, vibration isolation, sealing strips

Why Specify EPDM Closed Cell?

EPDM (Ethylene Propylene Diene Monomer) offers superior weather resistance compared to natural rubber, neoprene, or nitrile alternatives. The closed cell structure prevents water ingress, making it ideal for outdoor, marine, and wet environment applications where open cell foams would fail. Its exceptional ozone and UV resistance ensures decades of reliable service without hardening, cracking, or loss of elasticity.

Material Properties

Property Value
Hardness (Shore A) 15-25
Tensile Strength ≥ 1.5 MPa
Elongation at Break ≥ 150%
Compression Set (22h @ 70°C) ≤ 25%
Water Absorption < 5% by volume
Flame Rating Self-extinguishing

Ordering Information

Available Thicknesses: 3mm, 5mm, 6mm, 10mm, 12mm, 15mm, 20mm, 25mm

Sheet Width: 1.4 metres (standard)

Pricing: Per linear metre

Colour: Black (standard)

UK stock held for rapid dispatch. Custom thicknesses and widths available on request for project quantities.



About Us
All orders ship quickly for free via   &
We are a UK company with over 60 years of experience in the industry.
Your orders support a family owned and operated business.

Commercial EPDM Closed Cell Sponge Rubber Sheet – Marine Grade, Weatherproof, UV & Ozone Resistant

Regular price £201.96 Inc. Vat Sale price £161.57 Inc. Vat
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  • In stock, ready to ship

Trusted by Industry Professionals



Our Clients

Premium EPDM Closed Cell Sponge Rubber

Engineered for extreme environments where conventional materials fail

Technical Specification

Material: EPDM Closed Cell Sponge
Cell Structure: Closed Cell
Temperature Range: -40°C to +120°C
Density: 250-350 kg/m³
Width: 1.4m
Sold: Per Linear Metre

Uncompromising Performance

Our commercial-grade EPDM closed cell sponge rubber sheet represents the pinnacle of synthetic rubber engineering. Manufactured to exacting standards, this material delivers exceptional resistance to water, salt water, weathering, UV radiation, and ozone degradation—making it the material of choice for marine, automotive, and industrial sealing applications.

The closed cell structure provides superior compression set resistance and water impermeability, whilst maintaining excellent flexibility across a wide temperature spectrum. Unlike open cell alternatives, moisture cannot penetrate the cell walls, ensuring consistent performance in wet environments.

Key Performance Characteristics

  • Water & Salt Water Resistant — Impervious to fresh and marine environments
  • Weatherproof Construction — Withstands prolonged outdoor exposure without degradation
  • UV & Ozone Resistant — Maintains integrity under direct sunlight and atmospheric ozone
  • Closed Cell Technology — Zero water absorption, superior compression recovery
  • Temperature Stable — Performs reliably from -40°C to +120°C
  • Excellent Compression Set — Retains sealing force over extended service life

Applications & Industries

Marine & Offshore

Hatch seals, porthole gaskets, deck fittings, hull penetrations

Automotive & Transport

Door seals, window gaskets, vibration damping, weatherstripping

HVAC & Building Services

Duct sealing, thermal insulation, acoustic damping, expansion joints

Industrial Manufacturing

Equipment gaskets, protective padding, vibration isolation, sealing strips

Why Specify EPDM Closed Cell?

EPDM (Ethylene Propylene Diene Monomer) offers superior weather resistance compared to natural rubber, neoprene, or nitrile alternatives. The closed cell structure prevents water ingress, making it ideal for outdoor, marine, and wet environment applications where open cell foams would fail. Its exceptional ozone and UV resistance ensures decades of reliable service without hardening, cracking, or loss of elasticity.

Material Properties

Property Value
Hardness (Shore A) 15-25
Tensile Strength ≥ 1.5 MPa
Elongation at Break ≥ 150%
Compression Set (22h @ 70°C) ≤ 25%
Water Absorption < 5% by volume
Flame Rating Self-extinguishing

Ordering Information

Available Thicknesses: 3mm, 5mm, 6mm, 10mm, 12mm, 15mm, 20mm, 25mm

Sheet Width: 1.4 metres (standard)

Pricing: Per linear metre

Colour: Black (standard)

UK stock held for rapid dispatch. Custom thicknesses and widths available on request for project quantities.



About Us
All orders ship quickly for free via   &
We are a UK company with over 60 years of experience in the industry.
Your orders support a family owned and operated business.

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Commercial EPDM Closed Cell Sponge Rubber Sheet – Marine Grade, Weatherproof, UV & Ozone Resistant

£161.57 Inc. Vat
£201.96 Inc. Vat

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