EPDM Closed Cell Foam Tape
Ambassador Industrials EPDM closed cell foam tape is a high-performance sealing solution designed for both internal and external applications where reliable sealing, gasketing, weather stripping, and vibration dampening are required.
Manufactured from ethylene propylene diene monomer (EPDM) rubber, this foam tape offers exceptional resistance to UV exposure, ozone, weathering, and environmental extremes. Its closed-cell structure ensures a watertight, airtight, and dustproof seal, making it ideal for long-term industrial and construction applications.
With its ability to perform under low compression, EPDM foam tape maintains sealing integrity while remaining flexible across a wide temperature range.
Product Description
Key Features
- Easy release liner for quick application
- Easy handling and installation
- Low sealing compression for effective sealing
- Excellent UV and ozone resistance
- Dimensionally stable under stress
- Resistant to weathering and chemicals
- Long-term flexibility and durability
- Strong adhesion to multiple surfaces
Applications
- Glass and glazing systems
- Die-cut gaskets
- Construction and fabrication
- Weather stripping (doors, windows)
- Electrical switchboards and enclosures
- Marine hatches and sealing
- Refrigeration and HVAC systems
Technical Advantages
| TEST | UNIT OF MEASURE | STANDARD VALUE | VALUE | TEST METHOD |
| HARDNESS | SHORE C | 30 ± 5 | 35 | SHORE C |
| DENSITY | KG/M3 | 100 ± 30 | 90 | GB / T6343-1995 |
| WATER ABSORBTION | % | <20 | 12 | 1034-2008 |
| TENSILE STRENGTH | KPA | >200 | 280 | GB / T6344-2008 |
| USAGE TEMPERATURE | °C | NEG 35°C TO 110°C | ||
| HOLDING POWER | MM | SUS 25°C, 1KG, 1H | 1.3 | |
| INITIAL TACK | # | J.DOW WAY , 23°C | 21 | |
| ADHESIVE TO STEEL | G/25MM | SUS, 180°, 23°C | 1960 | |
| PEEL ADHESIVE | G/50MM | 23°C | 80 | |
| LOAD BEARING | MM | 80°C, 220G, 1H | 20 | |
| SHRINKAGE | TRANSVERSE % | 80°C, 1H | -2 | |
| LONGITUDINAL % | -2.5 | |||
Technical Advantages
Superior Weather & UV Resistance
EPDM foam tape is inherently resistant to UV radiation, ozone, and extreme weather conditions, ensuring long-term outdoor performance without cracking or degradation.
Excellent Sealing Performance
The closed-cell structure prevents water absorption and air leakage, making it ideal for weatherproofing and gasketing applications.
Thermal & Acoustic Insulation
Its dense foam structure provides effective vibration damping, sound insulation, and thermal resistance in industrial and construction environments.
Flexible & Durable
EPDM maintains flexibility across a wide temperature range, allowing it to perform reliably in both cold and high-temperature conditions.
Limitations
- Not suitable for applications involving oils, fuels, or hydrocarbons
- May swell or degrade when exposed to petroleum-based substances
For such use cases, PVC/Nitrile foam tape is recommended.
Frequently Asked Questions
EPDM offers excellent resistance to UV rays, ozone, and weathering, ensuring long-term durability without cracking or hardening.
No. Its closed-cell structure prevents water absorption, making it suitable for watertight sealing applications.
No. EPDM is not suitable for oil or fuel exposure. For such environments, nitrile-based foam tapes are recommended.
