Neoprene Closed Cell Foam Tape
Ambassador Industrial’s neoprene closed cell foam tape is a trusted, high-performance sealing solution built to keep water, air, and dust firmly where they belong — outside. Made from neoprene, a material renowned for its resistance to oils, chemicals, and acids, this tape brings both reliability and longevity to even the most demanding applications.
Product Description
Ambassador Industrial’s neoprene closed cell foam tape is a trusted, high-performance sealing solution built to keep water, air, and dust firmly where they belong — outside. Made from neoprene, a material renowned for its resistance to oils, chemicals, and acids, this tape brings both reliability and longevity to even the most demanding applications.
Its closed-cell structure ensures a tight, consistent seal, while its natural abrasion resistance means it holds up wherever surfaces are rough or conditions are tough. Whether you’re working on a marine project, sealing an industrial enclosure, or weatherproofing a construction panel, this tape is designed to perform day after day — indoors and out.
Key Features
- Easy release liner for quick, hassle-free installation
- Easy handling and application — no special tools required
- Low sealing compression — effective under minimal pressure
- Excellent UV resistance for outdoor durability
- Dimensionally stable under stress and temperature variation
- Resistant to weathering, chemicals, oils, and acids
Applications
Neoprene closed cell foam tape is a versatile performer across a wide range of industries and use cases, including:
- Glass and glazing systems
- Die-cut gaskets
- Construction and fabrication
- Weather stripping (doors, windows, and panels)
- Electrical switchboards and enclosures
- Marine hatches and sealing systems
- Refrigeration units and cold storage
Technical Specifications
All values have been tested in accordance with their respective standards. The table below outlines the key performance data for Ambassador Industrial’s neoprene closed cell foam tape.
| TEST | UNIT OF MEASURE | STANDARD VALUE | VALUE | TEST METHOD |
| HARDNESS | SHORE C | 18 ± 5 | 18 | SHORE C |
| DENSITY | KG/M³ | 150 ± 30 | 130 | GB / T6343-1995 |
| WATER ABSORPTION | % | <20 | 12 | 1034-2008 |
| TENSILE STRENGTH | KPA | >500 | 1050 | GB / T6344-2008 |
| USAGE TEMPERATURE | °C | NEG 35°C TO 110°C | ||
| HOLDING POWER | MM | 25°C, 1HR @ 1KG | 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 | |||
*Any technical advice given by Ambassador Industrial, whether in writing or verbal, is given in good faith, without warranty.
Technical Advantages
- Weather & Chemical Resistance
Neoprene is naturally resistant to UV light, ozone, moisture, oils, and a wide range of chemicals. This makes neoprene foam tape well-suited for outdoor sealing applications where lesser materials would degrade or lose adhesion over time. - Strong Adhesion Performance
With an adhesive-to-steel rating of 1960 G/25MM and initial tack of 21, this tape bonds quickly and holds firmly — even on vertical and overhead surfaces. The easy-release liner ensures clean, precise application every time. - Dimensional Stability
Shrinkage values remain minimal even at 80°C, with transverse shrinkage at just -2% and longitudinal at -2.5%. This ensures the tape retains its shape and seal integrity over extended use and across temperature fluctuations. - Thermal Range
Rated for use from -35°C to 110°C, neoprene foam tape handles both sub-zero conditions and elevated heat without compromising its sealing performance — making it a reliable choice for refrigeration, marine, and industrial environments.
Frequently Asked Questions
Yes. Neoprene is inherently UV and weather resistant, which means it won’t crack, harden, or break down quickly when exposed to sunlight, moisture, or harsh environmental conditions. It’s a solid choice for any outdoor sealing application.
Absolutely. Neoprene’s resistance to water, salt air, and humidity makes it a popular choice for marine hatches, deck fittings, and sealing applications where exposure to the elements is constant.
Each material has its strengths. EPDM excels in pure weather and UV resistance. PVC/Nitrile is the go-to for applications involving oils, fuels, or grease. Neoprene sits in the middle — offering strong all-round resistance including oils and chemicals, combined with good abrasion resistance and outdoor durability. It’s a great general-purpose choice when conditions are demanding but varied.
The pressure-sensitive acrylic adhesive backing bonds well to a wide variety of surfaces including steel, aluminium, glass, and most rigid plastics. For best results, ensure the surface is clean, dry, and free of oils or contaminants before applying.
Yes — neoprene offers good resistance to oils, acids, and many common industrial chemicals. While it performs well in environments with incidental oil or chemical exposure, for applications with constant or heavy hydrocarbon contact, a nitrile-based product may offer superior resistance.
Neoprene closed cell foam tape is engineered for low sealing compression. Its soft, conformable structure allows it to seal effectively without needing to be heavily compressed, which reduces stress on the surrounding materials and simplifies installation.
Yes. The material is well-suited to die-cutting, allowing it to be converted into custom gasket profiles and shapes to suit specific application requirements. Contact Ambassador Industrial to discuss custom cutting options.
