Poron Sponge Rubber Strip
At Advanced Seals & Gaskets Ltd, we manufacture Poron Sponge Rubber Strips and Tapes using premium-grade materials sourced from leading global suppliers. With hundreds of materials held in stock, we offer customers unparalleled choice when selecting the most suitable material for their specific application. One of our most popular options is Poron Sponge Rubber, known for its outstanding durability, compressibility, and sealing performance.
Poron Sponge Rubber is supplied in continuous roll lengths and available in thicknesses ranging from 0.53mm to 12.7mm, with a smooth, skin finish on both faces — ideal for precision cutting into custom Poron sponge strips, tapes, and gaskets.
Our Poron Sponge Strips can be produced using various in-house machines, including bandsaws, log cutters, strippers, and presses, depending on the required size and quantity. For high-volume orders, we also offer kiss-cutting, improving production speed and cost efficiency for customers.
Standard Poron sponge coils are typically supplied in 10-metre lengths, though the raw material can be produced in rolls from 12.2m to 182.9m (depending on grade and thickness). Thanks to our complete in-house manufacturing control, we guarantee every Poron strip is high-quality, precisely cut, and competitively priced. We offer options for adhesive backing, foil lamination, or other finishes for specialist applications.
Product Enquiry
For information on Poron Sponge Rubber Strip please complete the following quick enquiry or call us on +44(0)1384 252555.
Characteristics of Poron Sponge
- Colour: Black
- Temperature Range: -40°C to +90°C
- Thickness Range: 0.53mm – 12.7mm
- Roll Length: 12.2m – 182.9m (depending on grade & thickness)
- Resistance: UV, ozone, chemicals, mould, fungus, rot, and fire
- Flammability Tests: UL-94 HBF and MVSS 302
- Density Range: 144 – 480 kg/m³ (depending on grade)
Full technical data sheets are available upon request or can be downloaded directly from our online portal.
What are Poron Sponge Rubber Strips?
Poron Sponge Rubber Strips — sometimes referred to as Poron foam tape, Poron gasket tape, or Poron sponge tape — are cut from continuous rolls of closed-cell microcellular urethane foam. Manufactured by casting and curing foamed urethane compounds, Poron offers a high-density, flexible, and durable solution for sealing and vibration control applications.
Poron Sponge is renowned for its low outgassing, non-fogging, and non-corrosive properties, making it ideal for precision sealing, gasketing, and vibration management. Available in a wide range of grades, it includes:
- Soft, highly compressible grades for superior sealability
- Firm grades designed for energy and impact absorption
- Slow-recovery grades for applications needing low closure force
This adaptability makes Poron Sponge Rubber Strips suitable for use across automotive, electronics, lighting, and industrial manufacturing sectors.
Why Use Poron Sponge Rubber Strips?
Poron Sponge Strips are designed to perform like traditional gaskets, effectively sealing against air, moisture, dust, and other environmental elements. The smooth outer skin on both faces enhances seal integrity while also offering thermal insulation, shock absorption, and noise reduction.
Poron naturally meets UL-94 HBF and MVSS 302 flammability standards without requiring flame-retardant additives. Its low outgassing and non-fogging formulation prevents brittleness, disintegration, and corrosion — ensuring long-term material stability. Because it’s plasticiser-free, it remains non-corrosive to metals and safe for use in sensitive machinery or devices.
Benefits of Using Poron Sponge Rubberr
- Outstanding compression set resistance for long-term durability
- Wide temperature operating range (-40°C to +90°C)
- Excellent chemical and UV resistance
- Naturally flame-retardant (UL-94 HBF, MVSS 302 compliant)
- Non-corrosive and free from harmful additives
- Easily cut and shaped into custom strip sizes.
- Suitable for gasket tapes, sealing strips, and insulation applications
Other Grades of Sponge Available
At Advanced Seals & Gaskets Ltd, we offer an extensive range of sponge rubber materials, each suited to specific sealing, insulation, and vibration-damping applications.
- EPDM Sponge Rubber: A weather-resistant, durable, and flexible sponge with excellent UV and ozone resistance, perfect for outdoor sealing. Available in various grades (medium, firm, high-temperature, and semi-open cell), EPDM Sponge delivers exceptional performance across acoustic, thermal, and vibration-dampening applications.
- Neoprene Sponge Rubber: Highly versatile, Neoprene Sponge offers strong resilience and resistance to UV, ozone, and oils. With an operating range of -40°C to +115°C, it provides good chemical stability and resistance to petroleum-based fluids — ideal for industrial and automotive sealing.
- Silicone Sponge Rubber: A closed-cell, high-performance sponge offering superior temperature resistance, chemical stability, and weather durability. Silicone sponge remains flexible even in freezing conditions and provides excellent waterproofing for outdoor and high-temperature sealing.
- Viton Sponge Rubber: A premium-grade, closed-cell sponge with skins on both faces for added tear resistance. It operates in a temperature range of -25°C to +204°C, offering outstanding resistance to hydrocarbons, fuels, lubricants, acids, and ozone — ideal for demanding industrial environments.
- PVC Nitrile Sponge Rubber: This product combines air, gas, and watertight sealing with excellent thermal insulation and noise reduction properties. It’s flame-retardant and resistant to heat, UV, and ozone, making it ideal for acoustic and HVAC applications.
- Industrial Sponge Rubber: An open-cell natural sponge offering excellent compression recovery and flexibility. Suitable for protective padding, anti-vibration components, and expansion joints, it provides limited absorption while maintaining gas and liquid permeability where required.
Advantages of Using Poron Sponge Rubber Strips
Poron Sponge Rubber Strips are manufactured in a wide range of widths, lengths, and thicknesses, allowing for precise customisation. They deliver outstanding compression set resistance and long-term durability, ensuring reliable performance over time.
Because Poron is low-outgassing, non-fogging, and free from residual chemicals, it will not become brittle or contaminate surrounding materials. Its moisture, chemical, UV, and ozone resistance prevents corrosion, condensation, and biological growth — extending product life even in harsh environments.
With a working temperature range of -40°C to +90°C and natural flame retardance, Poron is a trusted material for:
- Automotive sealing and vibration isolation
- Lighting gasket tapes and insulation
- Edge trims and glazing seals
- Electronics and appliance gasketing
- Industrial equipment protection
Poron Sponge Rubber Strips can be supplied in short or continuous lengths, and our in-house manufacturing capability ensures precision, consistency, and fast turnaround times for every project.
Call Advanced Seals & Gaskets Ltd today on 01384 252555 or contact us online to discuss your Poron Sponge Strip requirements with one of our technical specialists.
Please contact us using the form below or by calling us on +44(0)1384 252555.