Alveo Foam Strip

Alveo Foam Strip

Advanced Seals & Gaskets Ltd are leading UK manufacturers and suppliers of Alveo foam strips, a type of expanded cross-linked closed-cell polyethylene. Available in a variety of densities, colours, and grades, Alveo foam is supplied as sheets, rolls, or custom-cut strips to meet the specific needs of our customers.

Also known under trade names Alveolit® or Alveo, this high-performance foam is popular across industries for its durability, flexibility, and versatility.

Manufacturing and Production

Our in-house production ensures every Alveo foam strip is manufactured to the highest quality standards. Using bandsaws, strippers, log cutters, and presses, we can produce made-to-measure strips based on customer samples, drawings, or specific dimensions.

  • Thicknesses: From 1.5mm up to 10mm (custom thickness available)

  • Widths: From 4mm upwards

  • Lengths: From a few millimetres up to 75 meters

  • Can be supplied plain, laminated, self-adhesive, or bonded with other materials

The foam can also be laminated in layers to achieve greater thicknesses or special configurations, providing bespoke solutions for all types of applications.

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Product Enquiry

For more information on Alveo Foam Strips, complete our quick enquiry form or call +44(0)1384 252555.






    Product Specification & Key Characteristics

    • Colours: Black (Anthracite) or White

    • Cell Structure: Closed-cell

    • Available Densities: 33kg, 67kg, 100kg

    • Thicknesses: 2mm – 10mm (skin on both sides, can be split or laminated)

    • Temperature Range: -60°C to +90°C

    • Resistances: Chemicals, ozone, UV, mildew, bacterial growth

    Full technical data can be supplied on request or downloaded via our online portal.

    Download Product Specification Sheet

    What Are Alveo Foam Strips?

    Alveo foam strips are cut or rolled lengths of physically cross-linked, closed-cell polyethylene foam. Produced from polyolefins (ethylene and propylene thermoplastics), Alveo is manufactured in a three-stage process: extrusion, crosslinking, and vertical foaming via polymerisation.

    The foam is available in continuous sheets or rolls, and can be cut to size or supplied as coils for end-user processing.

    Alveo foam strips are widely used as:

    • Gaskets to seal gaps between uneven surfaces

    • Anti-vibration and acoustic insulation

    • Cushioning or protective spacers

    Why Use Alveo Foam Strips?

    Alveo polyethylene foam is soft, flexible, and odourless, with a fine, regular closed-cell structure. The material offers:

    • Low water absorption

    • Excellent vapour permeability

    • Resistance to chemicals, ozone, and UV

    • Flame-retardant options available

    Alveo foam strips fill gaps and irregularities, reduce noise and vibrations, seal against air, gas, dust, and liquids, and provide cushioning between moving parts to prevent damage. Effective sealing requires the foam to compress fully, creating an airtight and protective seal.

    Advantages of Using Alveo Foam Strips

    Alveo foam strips provide numerous benefits for industrial, automotive, construction, and manufacturing applications:

    • Highly durable and resilient

    • Resistant to chemicals, moisture, and weather

    • Excellent thermal and acoustic insulation

    • Wide operating temperature range: -80°C to +100°C

    • Lightweight and easy to handle

    • Odourless and inert

    Benefits of Alveo Polyethylene Foam

    • Closed-cell, cross-linked structure ensures impermeability to air and water

    • Excellent temperature resistance

    • Lightweight, strong, and durable

    • Resistant to chemicals, UV, and environmental factors

    • Can be cut, split, laminated, or converted into bespoke strips

    Different Grades of Polyethylene Availables

    Through our network of suppliers, ASG offers a wide range of polyethylene foams ready for fast turnaround. Popular types include:

    • Polyethylene (Block foam)

    • Anti-static

    • Ethafoam

    • Eva foam

    • Flame retardant

    • Chemically cross-linked

    • Plastazote

    • Stratocell

    Alveo foam strips combine strength, flexibility, and versatility, making them an ideal solution for gaskets, insulation, vibration control, cushioning, and protective applications across a variety of industries.

    Have a Question about Alveo Foam Strips?

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