PU Foam-Bondable Liner-Free Aluminum Foil Tape

1. Product Introduction

The PU Foam-Bondable Liner-Free Aluminum Foil Tape is designed for applications that require reliable bonding with polyurethane (PU) foam, effective sealing, and thermal insulation. It features an aluminum foil substrate with a specialized release coating on the back that enables thermal bonding to PU foam, while the front side is coated with rubber-based pressure-sensitive adhesive for convenient application.

By combining the heat-reflective properties of aluminum foil with compatibility with PU foam insulation systems, this tape supports air, moisture, and dust sealing in refrigeration equipment, building insulation, and other industrial applications. Multiple thicknesses, film configurations, and roll sizes are available to accommodate different project requirements.

Manufactured by Jiangyin Biaotie Material Factory Co., Ltd, this product is suitable for B2B buyers seeking functional aluminum foil tape for appliance manufacturing, insulation assembly, and customized industrial sealing applications.

2. Key Product Features

Thermal Bonding with PU Foam

The specialized backside coating is designed to bond with PU foam during thermal processing while maintaining its intended release characteristics before bonding. This helps create a secure interface between the tape and the foam insulation layer, supporting effective sealing against air, moisture, and dust.

Heat Reflection and Thermal Insulation

The aluminum foil substrate reflects radiant heat, with reflection performance potentially reaching up to 97% under suitable material and test conditions. When integrated with PU foam insulation, the tape helps reduce radiant heat transfer and supports the overall thermal insulation performance of the assembly.

Rubber-Based Pressure-Sensitive Adhesive

The rubber adhesive provides initial tack and bonding performance for practical application. Specified models offer 180° peel strength of at least 7.5 N/cm, initial tack of at least 15#, and holding power of at least 24 hours under the applicable test conditions.

Flexible Film Options

Available configurations include BOPP film, PE film, and options without an additional film layer, depending on the specified product model. These configurations support different processing and application requirements.

Improved Application Reliability

For compatible BOPP- or PE-laminated aluminum foil tape constructions, the PU foam-bondable coating can help improve flexibility and resistance to damage during application. Performance against acid and alkali exposure depends on the complete material construction and operating conditions.

Multiple Sizes and Specifications

A range of thicknesses and dimensions is available, including narrow rolls for assembly work and wider formats for industrial processing. Custom specifications can be discussed according to the intended application, equipment, and performance requirements.

3. Technical Specifications

The following specifications represent the available product configurations. Confirm the selected model and its corresponding test requirements before ordering.

Dimensional Tolerances

• Aluminum foil thickness: ±0.005 mm

• Total thickness: ±0.01 mm

• Width: ±0.5 mm

• Length: ±0.2 m

Important Notes: Film type refers to the configuration listed for each model. “None” indicates that no additional film type is specified in the supplied product parameters. Initial tack values are shown using the supplier's stated notation; the corresponding test method and unit should be confirmed when comparing products. Peel strength, holding power, and tensile strength should be evaluated using the applicable test conditions.

4. Main Applications

Refrigerators and Freezers

Used in refrigeration equipment manufacturing to bond and protect condenser pipes, panels, and related components during PU foam injection and assembly. The tape supports the formation of a sealed insulation structure between interior and exterior compartments.

Building Insulation

Suitable for selected wall insulation and construction applications where aluminum foil tape is integrated with spray-applied or injected PU foam. It helps secure the interface between insulation materials and supports air sealing and thermal management.

Home Appliance Manufacturing

Applicable to selected appliance insulation and assembly processes that require aluminum foil, pressure-sensitive adhesion, and compatibility with PU foam. Final suitability depends on the equipment design and operating environment.

Infrastructure and Fire Protection

Can be considered for compatible insulation and sealing assemblies in infrastructure-related projects. For fire protection applications, the complete assembly must meet the project's applicable fire-resistance and regulatory requirements; aluminum foil tape alone should not be assumed to provide a certified fire rating.

5. Storage and Handling

To maintain product quality, follow these recommended storage conditions:

• Storage temperature: -5°C to 40°C

• Relative humidity: Below 80% RH

• Environment: Cool and dry, at room temperature where practical

• Protection: Avoid direct sunlight and exposure to heat sources

Keep the tape in suitable packaging before use and protect the adhesive surface from dust, moisture, and contamination. Before large-scale application, verify adhesion and compatibility with the target substrate, PU foam formulation, and processing conditions.

6. Customization and OEM Supply

Different production lines and insulation structures may require different tape dimensions, film configurations, and adhesive performance. Jiangyin Biaotie Material Factory Co., Ltd offers application-oriented consultation to help B2B buyers identify suitable material configurations.

Customization discussions may cover:

• Required total and aluminum foil thicknesses

• Roll width and length

• BOPP, PE, or other suitable material configurations

• Adhesive performance requirements

• PU foam bonding and processing conditions

• Application environment and storage requirements

• Packaging and production specifications

Providing details about the substrate, foam type, operating temperature, application process, and required roll dimensions helps the manufacturer evaluate a suitable specification and arrange sample testing where appropriate.

7. Why Work with Jiangyin Biaotie Material Factory Co., Ltd?

Established in 1980, Jiangyin Biaotie Material Factory Co., Ltd has decades of experience in tape manufacturing and more than 25 years of international trade experience. The company operates a 15,000 m² production facility, with an annual production capacity of approximately 20 million m² of various aluminum foil tapes.

Its manufacturing and service capabilities include:

• Long-term manufacturing experience: Specialized expertise in tape production and related process technologies.

• Production capacity: Facilities designed to support a range of aluminum foil tape specifications and B2B supply requirements.

• Product development: Ongoing evaluation of raw materials and adhesive formulations to address changing application needs.

• Equipment improvement: Automation and production process upgrades aimed at improving dimensional control and manufacturing consistency.

• International market experience: Export relationships across Europe, Southeast Asia, Central Asia, and North America.

• Application-focused communication: Technical discussions based on the customer's actual application, environmental conditions, and performance targets.

• Quality issue follow-up: Investigation of reported problems, including sample examination and root-cause analysis when feasible.

The company emphasizes clear communication, production planning, and application-specific recommendations to help customers select appropriate tape constructions and manage sourcing requirements.

8. Inquiry and Ordering Information

For a quotation or product evaluation, buyers are encouraged to provide the following details:

1. Intended application and end product

2. PU foam type and bonding process

3. Required aluminum foil and total thickness

4. Film configuration, if applicable

5. Roll width and length

6. Expected adhesion and tensile performance

7. Estimated order quantity and delivery requirements

These details help determine whether a listed configuration is suitable or whether a customized specification should be evaluated.

Contact Jiangyin Biaotie Material Factory Co., Ltd to discuss your requirements for PU Foam-Bondable Liner-Free Aluminum Foil Tape, request technical details, and explore suitable options for refrigeration, insulation, and industrial sealing applications.