Nitrile Butadiene Rubber (NBR) Tapes
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Technical Overview
Nitrile Butadiene Rubber (NBR), or Buna-N, foam tapes are distinguished by their exceptional resistance to oils, greases, and non-polar solvents, properties inherited from the base synthetic rubber polymer. These are predominantly closed-cell foam structures, making them superior for environmental sealing and insulation where chemical exposure or high temperatures are a concern.
The key technical features include low thermal conductivity (excellent insulation), high flexibility, and a specific resistance rating against various petroleum products. NBR tapes retain their elasticity and sealing functionality across a wide temperature spectrum, outperforming standard PE or PU foams in automotive, HVAC, and industrial equipment applications. Adhesive systems are often stabilized to resist plasticizer migration from the rubber base.
Why Choose Us
Differentiating Attributes
- Exceptional Chemical Resistance: Maintains structural integrity and sealing performance even when exposed to petroleum-based oils, greases, and many non-polar solvents, crucial for mechanical systems.
- High Thermal Insulation Efficiency: The closed-cell structure and NBR material composition result in a low K-factor, making it highly effective for thermal insulation and condensation prevention.
- Durable Sealing over Wide Temperature Range: Retains elasticity and compression set resistance from deep cold to high continuous service temperatures (up to 105°C).
- Superior Ozone and UV Resistance (Blended NBR): Specific blends or surface treatments offer improved resistance to outdoor elements compared to standard rubber, though EPDM remains superior for extreme UV.
- Good Abrasion Resistance: The rubberized surface provides a higher degree of physical wear resistance compared to standard PE or PU foams.
- Closed-Cell Water Barrier: Ensures minimal moisture ingress, providing a reliable water-tight seal when compressed correctly.
Core Features
Applications
- HVAC Condensation Control: Insulating refrigerant lines and chilled water pipes to prevent condensation and energy loss due to NBR’s low thermal conductivity and closed-cell structure.
- Oil and Chemical Resistant Gaskets: Sealing access panels, enclosures, and fluid reservoirs in machinery, automotive, and industrial equipment.
- Automotive Engine Bay Sealing: Gasketing against motor oil, transmission fluid, and high heat in non-exposed engine compartment areas.
- Marine and Industrial Pipe Wrapping: Providing durable, flexible insulation and environmental sealing for exposed fluid lines.
- Anti-Vibration Pads: Used as high-performance buffers in industrial machinery where exposure to lubricants is expected.
Technical Specifications
Introduction
NBR foam tapes are specialized, chemical-resistant sealing and gasketing solutions. Their synthetic rubber base provides robust protection against harsh industrial fluids and temperature extremes, ensuring long-term integrity in critical systems.
Company Profile
Jiangsu Shixin Adhesive Tape Product Co., Ltd. is a key manufacturer of technical foam solutions, specializing in NBR and EPDM materials for demanding sectors. Established in 2005, we prioritize robust quality control (ISO 9001) to ensure our products meet the stringent chemical and thermal requirements of global industrial clients, including major HVAC and equipment manufacturers.
We focus on engineered sealing solutions that provide reliable performance where chemical contact or extreme temperatures are routine.
Usage Guide
| Property | Test Standard | Typical Value Range |
| Foam Material Type | Internal Test Method | Closed-Cell Nitrile Butadiene Rubber |
| Density | ASTM D1056 | 60 kg/m³ – 120 kg/m³ |
| Oil and Fuel Resistance | ASTM D471 | Excellent (Low volume swell) |
| Thermal Conductivity (K-factor) | ASTM C518 | 0.038 W/m·K – 0.045 W/m·K |
| Service Temperature | Internal Thermal Test | -40°C to +105°C |
| Water Vapor Transmission | ASTM E96 | Very Low (Effective Barrier) |
About
Jiangsu Shixin Adhesive Tape Product Co., Ltd.
Our company was registered and established in Wuxi, Jiangsu in 2005, Wuxi Shixin Adhesive Tape Products Co., Ltd., mainly engaged in various adhesive tape products; We are Wholesale Nitrile Butadiene Rubber (NBR) Tapes Suppliers andChina ODM Nitrile Butadiene Rubber (NBR) Tapes Factory and Producer, after nearly 20 years of persistence and struggle, the company has grown vigorously and gradually expanded in scale. In 2018, we invested in a new factory in Suqian, Jiangsu, and established Jiangsu Shixin Adhesive Tape Products Co., Ltd.; At present, our company has become a high-tech enterprise integrating R&D, production and sales. The company has always firmly believed in the belief that "quality and reputation are the foundation of survival", continuously cultivating technical personnel, strengthening the development of new products, improving sales support, and striving to provide customers with better products and services.
Frequently Asked Questions
Frequently Asked Questions (FAQs)
- Q: How effective is NBR foam against gasoline and diesel?
- A: NBR exhibits good resistance to many automotive fluids, including gasoline and diesel, typically showing low volume swell. Specific resistance depends on the NBR grade (acrylonitrile content). Always test for critical applications.
- Q: Is NBR foam prone to corrosion when touching metal?
- A: High-quality NBR foam tapes are formulated to be non-corrosive. However, the adhesive backing must also be non-corrosive, typically requiring a carefully selected acrylic or non-sulfur-containing rubber adhesive system.
- Q: Can NBR be used for outdoor window sealing?
- A: While NBR handles heat and cold well, its natural resistance to UV and ozone is lower than EPDM. For long-term outdoor weatherstripping with full UV exposure, an EPDM foam is often a better choice unless NBR is specifically formulated with UV stabilizers.
- Q: What is the optimal compression for NBR gasketing?
- A: For reliable sealing, NBR foam should generally be compressed by 30% to 50% of its thickness. This compression level closes the surface cells effectively without causing permanent damage to the material structure.
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