Neoprene Extrusion

Neoprene Extrusions – Custom Profiles for Sealing & Protection

Advanced Seals & Gaskets Ltd (ASG) offers a wide range of neoprene sponge extrusions, tailored for industrial, automotive, marine, and construction applications. Our custom neoprene profiles provide effective sealing, cushioning, and protection while being durable, weather-resistant, and aesthetically versatile.

We manufacture all neoprene extrusions to order, using customer-provided drawings, samples, or dimensions. From simple cylindrical cords to complex contoured profiles, every extrusion is produced to meet exact specifications.

What is a Neoprene Extrusion?

Extrusion is the process of shaping neoprene sponge into continuous profiles using high-pressure extruder machinery and a custom-designed die. The result is a uniform cross-sectional shape that runs consistently along the length of the material.

Neoprene extrusions can be:

  • Solid – such as cords or rods

  • Hollow – with a central cavity for flexibility or cushioning

Commonly produced profiles include: D-sections, P-sections, U-channels, door seals, window seals, and edge trims, many of which can be supplied with self-adhesive backing for easy installation.

Neoprene extrusions are widely used in industries including construction, aerospace, automotive, marine, and agriculture, wherever protection against water, chemicals, and oil is required.

Product Enquiry

For information on Neoprene Extrusions – Custom Profiles for Sealing & Protection please complete the following quick enquiry or call us on +44(0)1384 252555.






    Product Specifications & Key Features

    • Colour: Black (Flame Retardant available in grey)

    • Density: 150–200 KG/M³

    • Tensile Strength: >500 kPa

    • Temperature Range: -40°C to +115°C (intermittent up to 130°C)

    • Thickness: 1–40mm (can be laminated for greater thickness)

    • Fire Resistance: UL94

    Full technical data sheets are available on request or via our online portal.

    Why Use Neoprene Sponge Extrusions?

    Neoprene sponge extrusions are highly versatile, combining durability, flexibility, and chemical resistance. Key benefits include:

    • Excellent air, dust, and watertight sealing

    • Resilience to UV, ozone, oxidation, and sunlight

    • Resistance to oil and chemicals

    • Flame-retardant grades for fire-sensitive applications

    • Vibration and sound absorption

    • Closed-cell structure, preventing mould and bacterial growth

    These properties make neoprene extrusions ideal for outdoor, automotive, glazing, electronic, aerospace, and marine applications.

    Advantages of Neoprene Extrusions

    • Long-lasting material suitable for indoor and outdoor applications

    • Can be cut or extruded into complex profiles

    • Compatible with self-adhesive and backing materials

    • Minimal compression provides excellent dust, air, and water sealing.

    • Flexible yet robust, ideal for sealing, cushioning, and vibration reduction

    Different Grades of Neoprene Sponge

    ASG works with multiple material suppliers, offering a range of neoprene grades to suit different applications:

    • Medium-Density Neoprene Sponge: General-purpose extrusions for everyday sealing and cushioning.

    • Firm Grade: Fire-resistance tested to FMVSS 302, with density 180kg (+/-25), suitable for heavy-duty applications.

    • Flame Retardant: Grey in colour, withstanding continuous temperatures -40°C to +115°C, tested to FMVSS 302, UL94, AFNOR P9750, ideal for construction and transport applications.

    • EPDM/Neoprene Blend: Combines EPDM weather resistance with neoprene chemical and oil resistance, perfect for outdoor sealing applications.

    Samples of all neoprene sponge grades are readily available for handling and testing. Our experienced team can help you choose the right material and profile for your specific application.

    Contact ASG for Custom Neoprene Extrusions

    To discuss your neoprene extrusion requirements or request a sample, call 01384 252555 or submit an enquiry form. Our team will work with you to deliver custom profiles that meet your exact specifications.

    Have a Question about Neoprene Extrusion?

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