Poron Seals

Poron Seals

At Advanced Seals & Gaskets Ltd, we are committed to producing and supplying a diverse range of seals crafted from numerous materials sourced globally. Our extensive material inventory allows us to cater to the sealing requirements of various industries and customers. An exemplary material in our repertoire is Poron Sponge Rubber, available in continuous roll lengths across a spectrum of thicknesses spanning from 0.53 mm to 12.7 mm, featuring skin finish on both sides for seamless seal fabrication.

Our Poron seals manifest as gaskets, washers, strips, and fabricated components, all meticulously designed to counteract air, fluid, and gas leakage or bridge gaps between surfaces. Collaboration with our customers during the design and material selection phase is pivotal, as it enables us to tailor seals precisely to their specifications, assuring their efficacy once deployed.

Leveraging our customers' drawings or samples, we can manufacture Poron seals in diverse forms, be it a straightforward washer or a complex fabricated profile seamlessly integrated into a finished product. From small sample batches to high-volume production runs, our arsenal of machinery is adept at swiftly and accurately producing flawlessly shaped Poron seals in a myriad of dimensions, supplied in plain form or with an array of finishes, including various foils and self-adhesives.

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    Poron Sponge Seal Specifications

    • Colour: Black

    • Thickness Range: 0.53mm – 12.7mm

    • Roll Lengths: 12.2m – 182.9m (dependent on grade and thickness)

    • Temperature Range: -40°C to +90°C

    • Density Range: 144 – 480 kg/m³ (depending on grade)

    • Resistances: UV, ozone, chemicals, mould, fungus, rot, and fire

    • Flammability: UL-94 HBF and MVSS 302 compliant

    Complete technical datasheets are available on request or can be downloaded from our online portal.

    Download Product Specification Sheet

    What Are Poron Sponge Seals?

    Poron seals are manufactured from closed-cell microcellular urethane foam, offering an excellent combination of compression set resistance, vibration dampening, and thermal insulation. Poron seals can be cut, punched, or fabricated into:

    • Gaskets

    • Washers

    • Sealing strips

    • Extruded trims

    • Custom profiles

    These seals are ideal for preventing air, fluid, or gas leakage, bridging gaps between surfaces, and absorbing vibrations or impacts. Poron seals are available in a range of grades, from soft and highly compressible foams that provide superior sealing to firm grades capable of withstanding high-energy impacts. Exceptionally slow-recovery grades are also available for applications that require minimal closure force.

    Why Use Poron Seals?

    Poron sponge seals offer a multitude of benefits, making them suitable for automotive, glazing, lighting, and electrical applications:

    • Watertight Sealing: Smooth skin finish ensures excellent barrier properties.

    • Vibration & Noise Dampening: Reduces mechanical vibrations and sound.

    • Chemical & Heat Resistance: Withstands exposure to oils, chemicals, UV, and ozone.

    • Flame Retardant: Meets UL-94 HBF and MVSS 302 standards without additional additives.

    • Non-Corrosive & Non-Fogging: Contains no plasticisers or residual chemicals, preventing damage to sensitive components.

    • Durable Performance: Maintains compression set resistance and flexibility over long-term use.

    Benefits of Using Poron Seals

    • Excellent Compression Set Resistance: Maintains shape and sealing efficiency even under continuous stress.

    • Wide Temperature Range: Operates reliably over a temperature range of -40°C to +90°C.

    • Chemical & Environmental Stability: Resistant to UV, ozone, moisture, and many chemicals.

    • Flame Retardant & Safe: Complies with rigorous flammability standards.

    • Easy Fabrication: Can be converted into custom gaskets, washers, sealing strips, or sheets to meet your requirements.

    Applications of Poron Seals

    Poron sponge seals are widely used across multiple sectors, including:

    • Automotive Industry: Sealing engine components, HVAC systems, and vibration dampening.

    • Glazing & Construction: Weatherproofing, thermal insulation, and gap sealing.

    • Lighting & Electrical Enclosures: Protects against moisture, dust, and contamination.

    • Industrial Equipment: Gaskets, washers, and vibration-absorbing components.

    Poron seals are ideal for applications that require durability, reliability, and long-term performance, offering resistance to moisture, chemicals, UV radiation, and ozone, while preventing condensation, corrosion, and bacterial growth.

    Advanced Seals & Gaskets Ltd provides custom Poron sponge seals in a wide range of thicknesses, densities, and finishes, ensuring your project benefits from precision sealing, durability, and superior performance. Whether you require small sample batches or large-scale production runs, our in-house facilities guarantee high-quality, cost-effective solutions tailored to your needs.

    📞 Call 01384 252555 to discuss your Poron sealing requirements or request a sample today.

    Have a Question About Poron Seals?

    Please contact us using the form below or by calling us on +44(0)1384 252555.