4mm EPDM Sponge Foam Tape | Closed-Cell Sealing & Gasket Tape | Flashback® Tape
Personal & Trade orders welcome
prices shown inc. VAT, with ex. VAT shown for business customers.
Delivery Options:
Standard UK Delivery (2–3 working days): £3.49
Next Day Delivery¹ (Orders placed by 15:00 Mon–Fri): £4.95
¹ While we aim for next-day delivery, a small number of orders may experience delays due to courier handling.
Product Description
Flashback® 4mm EPDM Sponge Rubber Tape is a high-density self-adhesive foam strip designed for sealing, cushioning, gap filling, weatherstripping and vibration dampening. Made from closed-cell EPDM sponge rubber, this tape is suitable for a wide range of home, trade, workshop and industrial applications where a medium-thin compressible rubber foam strip is required.
At 4mm thick, this EPDM tape offers a useful balance of flexibility, compression and support, making it suitable for general-purpose gasketing, access panels, cabinet seals, light impact protection, anti-rattle padding and weatherstripping. The single-sided pressure-sensitive adhesive backing makes it quick to apply to clean, dry and smooth surfaces.
Available widths: 10mm to 930mm
View All Thicknesses | Download EPDM Data Sheet PDF
Key Features
- 4mm thick self-adhesive EPDM sponge rubber tape
- Closed-cell sponge rubber structure
- ASTM D1056 classification: SCE-42 / RE-42 / 2A2
- Temperature range of -10°C to +94°C
- Excellent water, air and dust sealing performance
- Excellent ozone and weathering resistance
- Useful for sealing, cushioning and vibration dampening
- Single-sided pressure-sensitive adhesive backing
- Flexible and easy to cut to size
- Suitable for weatherstripping, gap filling, padding and anti-rattle use
- Available in widths from 10mm to 930mm
Common Uses
Flashback® 4mm EPDM Sponge Rubber Tape is suitable for general sealing, cushioning and protection tasks where a flexible compressible foam strip is required. It is commonly used to help seal gaps, reduce vibration, soften contact between surfaces and protect against air, dust and light moisture.
- Door and window sealing
- Weatherstripping and draught reduction
- General gap filling and compression sealing
- Cabinet seals and access panel seals
- Panel cushioning and anti-rattle applications
- Vibration dampening between surfaces
- Light impact protection
- Protective padding for frames, panels and equipment
- Workshop, shed and garage sealing
- General trade and industrial use
- Protected outdoor and sheltered external applications
Suitable Surfaces
This EPDM sponge tape can be applied to many clean, dry and smooth surfaces, including metal, painted metal, plastic, UPVC, glass, wood, painted surfaces, panels, frames and general hard surfaces. Adhesion can vary depending on the surface condition, temperature, pressure and environment. Always test first, especially on dusty, damp, rough, porous, delicate, freshly painted, coated or high-value surfaces.
Product Specification
Product: Flashback® 4mm EPDM Sponge Rubber Tape
Material: Closed-cell EPDM sponge rubber
Thickness: 4mm
Density / Classification: ASTM D1056 SCE-42 / RE-42 / 2A2
Temperature Range: -10°C to +94°C
Compression Deflection: 5–9 kPa at 25% and 50%
Compression Set: 4%
Tensile Strength: 100 kN/m²
Elongation: 150%
Water Absorption: 5%
Water, Air & Dust Seal: Excellent
Ozone Resistance: Excellent
Weathering Resistance: Excellent
Flammability: FMVSS 302 / UL-94 HF1 Pass
Adhesive: Single-sided pressure-sensitive adhesive
Available Widths: 10mm to 930mm
Use: Sealing, cushioning, gap filling, weatherstripping and vibration dampening
Application: Indoor, trade, workshop and protected outdoor use on suitable surfaces
Why Use 4mm EPDM Sponge Tape?
4mm EPDM sponge tape is a good choice when you need a flexible sealing strip that is thicker than very thin foam tape but still easy to compress. It can help seal small to medium gaps, reduce minor vibration or rattling, cushion panels and provide a protective layer between hard surfaces. EPDM is widely used because it offers excellent resistance to ozone and weathering, making it a practical choice for many indoor and sheltered outdoor sealing jobs.
EPDM vs Neoprene
EPDM is generally a better choice for applications exposed to sunlight, ozone and weathering. Neoprene is often preferred where oils, fuels or certain chemicals may be present. For sealing doors, windows, panels, frames and general weather-exposed areas, EPDM is usually the more suitable option. For oily or chemical-heavy environments, a different material may be required.
Application Guide
- Make sure the surface is clean, dry and free from dust, grease or loose material.
- Measure and cut the EPDM tape to the required length.
- Peel away the backing liner from the adhesive side.
- Position carefully before pressing down.
- Apply firm pressure along the full length of the tape.
- Allow time for the adhesive to bond before putting the tape under compression or stress.
- Test first to confirm suitability for your specific application.
FAQ
Is this tape suitable for outdoor use?
Yes, EPDM offers excellent weathering and ozone resistance, making it suitable for many sheltered or protected outdoor sealing applications. Always test first for your specific surface and environment.
Can this EPDM tape be used as a draught excluder?
Yes, it can be used for draught reduction around suitable doors, windows, sheds, garages and access panels where the 4mm thickness is appropriate.
Is this tape waterproof?
The closed-cell EPDM sponge rubber offers excellent water, air and dust sealing performance, but suitability depends on compression, surface contact and installation. It should not be used for submerged applications.
Can I cut it to size?
Yes, the tape can be cut to length with scissors or a sharp knife.
Will it stick to rough surfaces?
It works best on clean, dry and smooth surfaces. Rough, dusty, damp or porous surfaces may reduce adhesion.
Important Notes
This product is intended for general-purpose sealing, cushioning, gap filling, weatherstripping and vibration dampening applications. It is not suitable for use with oils, fuels, solvents, aggressive chemicals, electrical insulation, conductive applications, live circuits, submerged conditions, structural fixing or safety-critical applications. Suitability depends on the surface, compression, temperature, environment and application conditions. Always test before full use.
This EPDM sponge rubber has a stated temperature range of -10°C to +94°C. Avoid use outside this range or in applications where heat, chemicals, load, movement or compression exceed the material’s limits.
Trade & Bulk Orders
Personal and trade orders are welcome. For larger quantities, repeat supply or trade enquiries, please contact us for bulk pricing at sales@flashbacktape.co.uk.
Product Disclaimer
Disclaimer: This EPDM sponge tape is intended for general-purpose use only. It is not certified for electrical, structural, chemically exposed, submerged, automotive safety-critical or load-bearing applications. Do not use in circuits, with oils or aggressive chemicals, or anywhere product failure could lead to injury or property damage. Always test suitability in your specific application before use. Flashback Tape accepts no liability for misuse or improper installation.
Other Names for This Product
This type of tape is also commonly known as 4mm EPDM foam tape, self-adhesive EPDM strip, closed-cell foam tape, rubber sealing strip, weather seal tape, draught excluder tape, foam gasket tape, anti-rattle foam tape or sponge rubber tape.