Polyurethane (PU) Foam Tapes
-- Steady & Reliable Manufacturer --
Technical Overview
Polyurethane (PU) foam tapes are characterized by their open-cell or semi-open-cell structure, providing excellent compressibility, flexibility, and acoustic absorption properties. Unlike closed-cell foams, open-cell PU allows air exchange, making it ineffective as a complete vapor barrier but highly effective for dust sealing, cushioning, and sound dampening where continuous compression is not feasible.
Key performance indicators include the compression load deflection (CLD), indicating the force required to compress the foam, and the airflow resistance, which determines its acoustic performance. PU tapes offer superior long-term compression set resistance compared to some other foam types, ensuring the gap filling and cushioning function is maintained over time. They are commonly backed with acrylic or synthetic rubber adhesives for mounting and fixing applications.
Why Choose Us
Differentiating Attributes
- Superior Acoustic Absorption: The open-cell structure effectively captures and dissipates sound waves, making it highly effective for NVH control and improving product quietness.
- Low Compression Force Requirement: Requires minimal pressure to conform and fill gaps, making it suitable for assemblies with lightweight or thin plastic housings.
- Excellent Cushioning and Recovery: Provides durable shock absorption with low compression set, ensuring that the material recovers its original loft and remains effective over repeated use cycles.
- High Conformability: Easily adapts to complex, three-dimensional curves and inconsistent substrate tolerances common in large appliance manufacturing.
- Vibration Isolation: Acts as a physical barrier and energy absorber to prevent rattling and the transfer of mechanical vibration between components.
- Breathability (Open Cell): In applications where moisture management is necessary (not sealing), the open-cell nature allows materials to breathe, preventing internal condensation buildup.
Core Features
Applications
- Acoustic Insulation: Dampening airborne noise within appliance housings, HVAC units, and electronics enclosures.
- Dust and Light Sealing: Protecting sensitive electronics or display units from fine particulate matter and light leakage.
- Cushioning and Shock Absorption: Acting as padding between delicate components to prevent damage from impact or handling during transport.
- Gap Filling and Air Filtration Pre-Sealing: Used to seal inconsistent gaps or provide initial filtration in non-critical air pathways.
- Soundproofing in Automotive Interiors: Applied behind dash panels and trim to suppress rattling and increase perceived sound quality.
Technical Specifications
Introduction
Polyurethane foam tapes are widely used for effective noise mitigation, dust exclusion, and non-structural gap filling. Their inherently soft, open-cell composition ensures maximal conformability and excellent shock absorption in complex assemblies.
Company Profile
Jiangsu Shixin Adhesive Tape Product Co., Ltd. is a specialized supplier of foam solutions (PU, PE, NBR, EVA), integrating advanced adhesive coating with polymer foam conversion. Since 2005, we have maintained ISO 9001 quality systems to support the demanding needs of global appliance and electronics manufacturers, including Vestel and KEGHICON.
We focus on optimizing NVH (Noise, Vibration, and Harshness) control and reliable gasketing, ensuring our foam tapes deliver consistent, repeatable performance.
Usage Guide
| Property | Test Standard | Typical Value Range |
| Foam Material Type | Internal Test Method | Open-Cell Polyurethane Ester/Ether |
| Density | ASTM D3574 | 20 kg/m³ – 50 kg/m³ |
| Compression Load Deflection (25%) | ASTM D3574 | 5 kPa – 20 kPa |
| Airflow Resistance | ISO 9053 | Varies based on cell structure |
| Service Temperature | Internal Thermal Test | -40°C to +90°C |
| Flammability (Material only) | UL94 HBF | Typically HBF rated or higher |
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 Polyurethane (PU) Foam Tapes Suppliers andChina ODM Polyurethane (PU) Foam 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: Is open-cell PU foam suitable for waterproofing?
- A: No. Open-cell foam is porous and will absorb water, making it unsuitable for applications requiring a water or vapor barrier. Closed-cell foams (like NBR or EPDM) must be used for true waterproofing.
- Q: What is the main benefit of PU foam over PE foam for noise damping?
- A: PU foam typically has a better open-cell structure for absorbing airborne noise, whereas PE foam (closed-cell) is better for preventing water and dampening mechanical vibration.
- Q: How does compression affect the acoustic performance?
- A: Optimal acoustic absorption usually occurs when the foam is minimally compressed or used as a backing layer. Heavy compression can close off cells, reducing sound absorption but potentially improving mechanical damping.
- Q: Can PU foam tapes be exposed to direct sunlight?
- A: Standard polyester PU foam can degrade when exposed to prolonged UV light. For outdoor or light-exposed applications, an ether-based PU or a UV-stabilized closed-cell foam is recommended.
Request a Specification Sheet or Sample
Contact our engineering team today to discuss your high reflectance project requirements.
