Neoprene Foam Strip
At Advanced Seals & Gaskets Ltd, we specialise in manufacturing high-quality Neoprene sponge strips — also known as Neoprene foam strip, gasket strip, gasket tape, weatherstrip, isolation strip, glazing strip, or sealing tape. Produced by our highly skilled workforce using state-of-the-art machinery, these strips are designed for precision, durability, and performance across a wide range of industrial applications.
Working from your samples, drawings, or precise dimensions, our in-house team produces custom-made neoprene sponge strips using band saws, log cutters, strippers, and presses. By handling the whole process internally, we maintain tight quality control, ensuring that every strip meets our high manufacturing standards and offers exceptional value.
Our neoprene foam strips can be cut from sheets or rolls, split down to thicknesses starting at 1mm and widths from 4mm upwards. Lengths can range from a few millimetres up to 50 metres, depending on the material thickness. During production, we can laminate layers to achieve greater depth and provide plain or self-adhesive finishes.
Neoprene sponge strips are available in a variety of grades, including Medium Density, Firm, Flame Retardant, and EPDM/Neoprene Blended options.
They are ideal for sealing against air, moisture, and dust, filling uneven gaps, or reducing noise and vibration. Due to their oil, water, and chemical resistance, they are also used in demanding environments across multiple industries.
What are Neoprene Sponge Strips?
Neoprene sponge rubber (also known as Polychloroprene) is one of the most widely used closed-cell materials available at Advanced Seals & Gaskets. It is a durable, flexible material that provides excellent sealing and insulation properties.
Our Neoprene sponge strips are produced from large blocks that are precision split to the required thickness before being converted into strips. Depending on the application and dimensions, we use various cutting methods — including bandsaws for shorter or thicker strips, log cutters for thinner and longer rolls, and kiss-cut presses for tiny components.
Neoprene strips can also be laminated, adhesive-backed, or foil-lined during production, allowing for enhanced mechanical strength, sealing performance, and ease of installation.
Product Enquiry
For information on Neoprene Foam Strip please complete the following quick enquiry or call us on +44(0)1384 252555.
Product Specification & Key Characteristics
- Colour: Black (Flame Retardant version available in grey)
- Density: 150 – 200 kg/m³
- Tensile Strength: >500kPa
- Temperature Range: -40°C to +115°C (intermittent up to 130°C)
- Thickness: 1mm – 40mm (lamination available for greater thickness)
- Fire Resistance: UL94
Full technical data sheets are available upon request or can be downloaded from our online portal.
Why Use Neoprene Sponge Strips?
Neoprene sponge strips are chosen for their exceptional sealing, gasketing, and insulation capabilities. Their closed-cell structure forms an effective air-, dust-, and watertight seal, while also offering sound and vibration absorption.
This material also prevents bacterial and mould growth, making it hygienic for use in clean or controlled environments. Thanks to its superior ageing resistance, Neoprene maintains flexibility and integrity under exposure to ozone, UV, sunlight, and oxidation.
Neoprene is also resistant to petrol, oils, and many chemicals, making it ideal for applications in construction, glazing, automotive, electronics, and general industrial sealing. Its flame-retardant properties further enhance safety in high-risk environments.
Strips
At Advanced Seals & Gaskets, we manufacture sealing strips in a wide variety of materials, including EPDM, solid rubber, silicone, PVC, polyurethane, polyethene, and textiles.
Because we handle all cutting and fabrication in-house, we can produce bespoke strips in any required width, length, thickness, or finish, ensuring you receive the right material for your exact application.
Contact our team for expert guidance on the most suitable material for your needs.
Benefits of Neoprene Sponge Strips
- Resistant to oil, petrol, and chemicals
- Durable and long-lasting
- Excellent UV, ozone, and weathering resistance
- Flame retardant (UL94 rated)
- Effective sound and vibration absorption
- Closed-cell structure prevents mould and bacterial growth.
The Advantages of Using Neoprene Sponge Strips
Neoprene sponge is a readily available, cost-effective, and easy-to-convert material that offers outstanding performance across many industries. Its wide operating temperature range (-40°C to +115°C) and resistance to environmental damage make it suitable for both indoor and outdoor sealing.
Even under low compression, Neoprene strips provide a tight, durable seal against dust, air, and moisture, while maintaining excellent oil and chemical resistance.
Flexible yet robust, Neoprene foam strips are frequently used in automotive, construction, glazing, electronics, HVAC, and lighting applications for long-lasting performance and reliability.
Different Grades of Neoprene Sponge Strip
At Advanced Seals & Gaskets, we offer a selection of Neoprene grades to ensure the best match for your specific application requirements.
- Firm Grade Neoprene Sponge: A closed-cell, fire-tested material (FMVSS 302 compliant) with a density of 180kg/m³ (±25). This product is ideal for heavy-duty sealing where less compression is required to maintain a secure seal.
- Flame Retardant Neoprene Sponge: The material is grey in colour and designed for use in construction and transport applications where fire resistance is essential. It operates continuously between -40°C and +115°C, meeting multiple fire safety standards (FMVSS 302, UL94, AFNOR P9750).
- EPDM/Neoprene Blend Sponge: A versatile hybrid material combining the outdoor weathering resistance of EPDM with the oil and chemical resistance of Neoprene, making it perfect for external sealing and long-term industrial use.
If you are unsure which grade of Neoprene sponge best suits your application, please contact our technical team or request a sample for testing.
Please contact us using the form below or by calling us on +44(0)1384 252555.