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EPDM Sponge Foam Tape | Closed-Cell Sealing & Gasket Tape | Flashback® Tape

Product Code: FB-EPDM
Original price £2.49 - Original price £81.88
Original price
£2.49 Inc VAT
£2.08 - £68.23 Ex VAT
£2.49 - £81.88
Current price £2.49 Inc VAT
10.0m m £0.25/m Inc VAT £0.21/m Ex VAT
Choose a Thickness
Choose a Width
Choose a Length

UK delivery £3.49, next day £4.95

Not sure which sponge tape you need? Compare EPDM and silicone to help choose the most suitable material for your application.
Choose your sponge tape
  • Seals gaps
  • Compressible
  • Self-adhesive
  • Outdoor use
  • Temperature range-20 to +80°C
  • Smooth, clean surfaces
Uses & suitable surfaces

Typical Uses: Door and window sealing, weatherstripping, gasketing, gap filling, access panels, enclosures, machinery cushioning, anti-rattle protection, sound dampening and vibration reduction.

Suitable Surfaces: Metal, painted metal, plastic, UPVC, glass, wood, painted surfaces, panels and frames. For best adhesion, surfaces should be clean, dry and smooth. Always test first where suitability is uncertain.

Not suitable for: Oils, fuels, solvents or aggressive chemicals; electrical insulation, conductive applications or live circuits; submerged conditions; structural fixing or safety-critical applications.

Product specifications

Material: Closed-cell EPDM sponge rubber

Thicknesses: 1mm, 1.5mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm and 10mm

Widths from stock: 10mm, 15mm, 20mm, 25mm, 30mm, 40mm, 50mm, 75mm and 100mm

Wider widths: Up to 930mm to order. Contact sales@flashbacktape.co.uk for lead times and pricing

Roll Length: 10m

Adhesive: Single-sided acrylic pressure-sensitive adhesive

Colour: Black

Temperature Range: -20°C to +80°C

Product Code: FB-EPDM

How to apply
  1. Ensure the surface is clean, dry and free from dust, grease and loose material.
  2. Measure and cut the tape to the required length using scissors or a sharp knife.
  3. Remove the release liner and carefully position the tape before pressing down.
  4. Apply firm, even pressure along the full length.
  5. Allow the adhesive time to bond before placing the tape under compression or stress.

Always test first to confirm suitability for your surface and application. Adhesion varies with surface condition, temperature and environment. Take particular care on dusty, damp, rough, porous, delicate, freshly painted, coated or high-value surfaces.

Certification & product guidance

Material: Closed-cell EPDM sponge rubber

Classification: ASTM D1056 2A1 B3

Density: 70 to 100 kg/m³

Flammability: FMVSS 302 pass

Temperature Range: -20°C to +80°C

Sponge rubber performance (typical values from the EPDM data sheet)

Compression deflection: 20 to 40 kPa at 25%, 50 to 70 kPa at 50% (ASTM D1056)

Compression set: 13 to 18% at 25%, 30 to 45% at 50%, 22 hours at 23°C (ASTM D1056)

Tensile strength: 300 to 350 kPa (ASTM D412)

Elongation: 150 to 180% (ASTM D412)

Water absorption: 1 to 3% (ASTM D1056)

Water, air and dust seal: Excellent

Ozone and weathering resistance: Excellent

Adhesive

Type: Modified acrylic, pressure sensitive

Peel adhesion: Min 21 N/25mm (AFERA 5001)

Temperature resistance: -40°C to +90°C

Data Sheet: Download the EPDM Data Sheet (PDF)

All figures are typical values, not a guaranteed specification. The working range of the finished tape is -20°C to +80°C, set by the sponge rubber. This tape is not certified for electrical, structural, chemically exposed, submerged, automotive safety-critical or load-bearing applications. Suitability depends on surface, compression, temperature, environment and installation. Always test before full use. Flashback Tape accepts no liability for misuse or improper installation.

Frequently asked questions

Which thickness of EPDM tape should I choose?

Choose a thickness slightly greater than the gap, so the foam is compressed when closed. Thin grades (1mm to 2mm) suit fine gaps and gasketing, 3mm to 6mm covers most door, window, hatch and panel seals, and 8mm to 10mm suits larger or uneven gaps.

What is EPDM foam tape used for?

Sealing, gasketing, cushioning, weatherstripping, gap filling, anti-rattle protection and vibration dampening.

Is EPDM foam tape suitable for outdoor use?

EPDM's ozone and weathering resistance is rated excellent on our data sheet, and the tape is rated for use from -20°C to +80°C, making it suitable for many outdoor and sheltered applications. Always confirm suitability for your specific application.

Is EPDM foam tape waterproof?

Closed-cell EPDM helps resist water ingress, but the finished seal depends on compression, surface contact and installation. It should not be used as a roofing seam, flashing tape, waterproof membrane joint, or in submerged conditions.

Is EPDM the same as neoprene?

No. Both are synthetic rubbers used for sponge sealing tapes, but they suit different conditions. EPDM is generally the better choice for outdoor and weather-exposed sealing, while neoprene is often preferred where oils or fuels are present. EPDM is not suitable for contact with oils, fuels or solvents. Our EPDM vs neoprene vs foam tape guide compares them in detail.

Can EPDM foam tape be cut to size?

Yes. It cuts easily to length with scissors or a sharp knife.

Trade & Bulk Orders

Tell us the widths and lengths or number of full rolls you need, and we’ll reply with a quote. Trade orders can be paid by pro forma invoice.

Product Description

Flashback® EPDM Sponge Rubber Tape is a self-adhesive, closed-cell EPDM foam tape for sealing, gasketing, cushioning, gap filling, weatherstripping and anti-rattle use.

Choose from nine thicknesses between 1mm and 10mm and widths from 10mm to 100mm, all on 10m rolls. Wider widths up to 930mm are available to order. The closed-cell structure helps seal against water, air and dust, and EPDM's resistance to ozone and weathering makes it a practical choice for doors, windows, hatches, panels, enclosures and general trade and industrial sealing.

A single-sided acrylic pressure-sensitive adhesive allows quick application to clean, dry, smooth surfaces, and the finished tape is rated for use from -20°C to +80°C.

View All EPDM Tapes | Download EPDM Data Sheet PDF

Key Features

  • Closed-cell EPDM sponge rubber, classified to ASTM D1056 2A1 B3
  • Density 70 to 100 kg/m³
  • Thicknesses from 1mm to 10mm
  • Widths from 10mm to 100mm from stock, up to 930mm to order
  • Single-sided modified acrylic pressure-sensitive adhesive
  • Ozone and weathering resistance rated excellent
  • Helps seal against water, air and dust
  • Operating temperature -20°C to +80°C
  • Passes FMVSS 302 flammability test
  • Easy to cut to length

Which Thickness Do I Need?

Foam seals work under compression, so choose a thickness slightly greater than the gap you are sealing. The foam should be squeezed, not just touching, when the door, lid or panel closes. The performance figures on our data sheet are measured at 25% and 50% compression.

  • 1mm, 1.5mm and 2mm: fine gaps, precision gasketing, light cushioning and anti-rattle strips where you need to add minimal thickness.
  • 3mm and 4mm: the all-round range for small to medium gaps, door, window and hatch seals, cabinets and enclosures.
  • 5mm and 6mm: medium gaps, access panels, draught reduction and panel cushioning.
  • 8mm and 10mm: larger or uneven gaps, heavier cushioning and vibration reduction.

Select your thickness and width from the options above. For very large gaps, see our 15mm EPDM tape, supplied on 5m rolls.

Still unsure? Use our sponge tape selector to compare EPDM and silicone for your application.

Buying in volume or need a wider width? See wholesale EPDM sponge tape, use the Trade & Bulk Orders tab, or email sales@flashbacktape.co.uk for lead times and pricing.

Important: This is an EPDM sponge sealing and cushioning tape. It is not a roofing seam tape, flashing tape or waterproof membrane tape.