Polyimide Film Tubing SB-PFT

Product Introduction

Polyimide Film Tubing SB-PFT is a high-performance electrical insulation and mechanical protection tube designed for applications requiring excellent thermal stability, dielectric properties, and resistance to harsh operating environments. Manufactured by twisting polyimide film and bonding it with a specially formulated adhesive, this tubing provides reliable insulation protection for wires, cable connections, electrical components, and industrial equipment.

With a light yellow appearance and a wide dimensional range, SB-PFT Polyimide Film Tubing is suitable for motors, transformers, wire harnesses, heating elements, capacitors, and various electrical appliances. Its insulation structure combines flexibility, mechanical strength, and resistance to chemicals, abrasion, moisture, and industrial solvents.

The tubing offers a specified working temperature range of -60°C to +220°C, with a listed service temperature range of -269°C to +260°C. It is designed for electrical and industrial applications where stable insulation performance and mechanical protection are essential.

Key Product Features and Advantages

1. Excellent High-Temperature Resistance

Polyimide film provides outstanding thermal stability, making SB-PFT suitable for electrical components exposed to elevated temperatures. Its specified working temperature range is -60°C to +220°C, supporting demanding insulation applications.

2. Reliable Electrical Insulation

The tubing features high surface and volume resistivity, together with dielectric properties that support electrical insulation in motors, transformers, cables, and other electrical assemblies.

3. Strong Mechanical Performance

With longitudinal tensile strength of at least 130 MPa and horizontal tensile strength of at least 110 MPa, the tubing offers mechanical strength for protecting sensitive electrical components and connections.

4. Chemical and Solvent Resistance

The material demonstrates resistance to acids, oils, paints, industrial solvents, Freon, and various special liquids. Its chemical stability makes it suitable for industrial environments involving exposure to different substances.

5. Excellent Abrasion and Mechanical Protection

Designed to resist abrasion and mechanical damage, the tubing helps protect soldering points, wire connections, cable assemblies, and other vulnerable components during installation and operation.

6. Corrosion Resistance

The material offers excellent anti-corrosive characteristics, with negligible corrosive effects on copper according to the supplied product specifications. This makes it suitable for applications involving copper conductors and electrical connections.

7. Flexible Dimensions and Customization

Available with inside diameters from 2.0 mm to 65 mm, wall thicknesses from 0.05 mm to 0.5 mm, and lengths from 10 mm to 1,800 mm. Other dimensions can be manufactured upon request to meet different equipment and assembly requirements.

8. Stable Surface Quality

The tubing features a smooth surface without visible flecks, supporting consistent product appearance and convenient installation in electrical assemblies.

Product Specifications

Note: All dimensional and performance specifications are based on the supplied product information. Please confirm detailed tolerances and test conditions when selecting the product for a specific application.

Structure and Manufacturing Process

SB-PFT Polyimide Film Tubing is manufactured by twisting polyimide film into a tubular structure and bonding it with a specially formulated adhesive.

The adhesive has chemical characteristics similar to polyester film, helping form a stable tubular structure for electrical insulation and mechanical protection.

This construction is designed to provide a combination of:

• Electrical insulation performance.

• Thermal stability.

• Mechanical strength.

• Chemical resistance.

• Surface consistency.

• Protection for electrical connections and components.

Electrical and Physical Properties

Electrical Insulation Performance

The tubing is designed for electrical insulation applications requiring stable resistivity and dielectric characteristics.

• Surface resistivity at 200°C: ≥1.0 × 10¹³

• Volume resistivity at 200°C: ≥3.8 × 10¹⁰

• Dielectric coefficient at 50 Hz: 3.5

• Dielectric loss at 50 Hz: ≤4 × 10⁻³

• Resistance pressure: 50 Hz, 115 MV/min, not perforative (as specified in the supplied data)

Mechanical and Chemical Properties

• Longitudinal tensile strength: ≥130 MPa.

• Horizontal tensile strength: ≥110 MPa.

• Excellent tenacity.

• Excellent antibacterial and anti-corrosive characteristics.

• Resistance to abrasion and mechanical damage.

• Resistance to acids, immersion, mildew, industrial solvents, Freon, and special liquids.

• Negligible corrosive effect on copper.

Typical Applications

Polyimide Film Tubing SB-PFT is widely used for electrical insulation and mechanical protection in different industrial and electronic applications.

• Soldering and Electrical Connections: Insulation and protection for soldering points, joints, and electrical connection areas.

• Wire Harnesses: Protective tubing for wire harness assemblies and electrical wiring systems.

• Transformers: Insulation protection for transformer components and internal electrical connections.

• Electric Motors: Used in motor insulation and protection of electrical components exposed to elevated temperatures.

• Cables and Wiring: Provides additional insulation and mechanical protection for cable assemblies.

• Heating Elements: Suitable for electrical heating components operating under demanding thermal conditions.

• Capacitors: Used for insulation and protection in capacitor-related electrical assemblies.

• Telecommunications Equipment: Supports insulation applications in telephone and electronic communication equipment.

• Household Appliances: Applicable to electrical wiring and internal components in various appliances.

Available Sizes and Customization

SB-PFT is available in multiple dimensions to accommodate different electrical components and installation requirements.

In addition to the standard dimensional range, customized sizes can be manufactured according to customer requirements.

When requesting a quotation, buyers can provide the required inside diameter, wall thickness, length, operating temperature, and intended application to help determine a suitable specification.

About Shenzhen Sunbow Insulation Materials MFG. Co., Ltd.

Shenzhen Sunbow Insulation Materials MFG. Co., Ltd. was established in 2003 and specializes in the research, development, manufacturing, and sales of electrical insulation sleeves and protective tubing.

With more than 20 years of industry experience, Sunbow has developed its manufacturing capabilities through continuous investment in R&D, production equipment, and testing facilities.

Manufacturing Strengths

• Established in 2003: More than two decades of experience in insulation material manufacturing.

• 60+ Patents: Continuous investment in product development and technological innovation.

• 20,000 m² Factory Area: Two manufacturing facilities in Shenzhen and Dongguan supporting production and processing.

• 40 Million+ Meters Monthly Output: Production capacity covering various types of insulation sleeves and tubing.

• Advanced Testing Equipment: Supports product performance evaluation and quality control.

• Experienced R&D Team: Focused on developing insulation products for different industrial applications.

Product Portfolio

Sunbow's main product range includes:

• Fiberglass sleeving.

• Heat shrinkable tubing.

• PVC tubing.

• Silicone rubber tubing.

• PTFE tubing.

• Expandable sleeving.

• Corrugated pipes.

• Polyimide film tubing.

The company provides insulation material solutions for electrical equipment manufacturers, automotive suppliers, electronics producers, and industrial applications.

Quality Management and Certifications

Sunbow has obtained ISO 9001:2015 and IATF 16949:2016 certifications, supporting standardized quality management and automotive industry supply requirements.

According to the company's certification information:

• Fiberglass sleeving products have obtained UL and CSA certifications.

• Heat shrinkable tubing, PTFE tubing, silicone rubber tubing, and PVC tubing have obtained UL certifications.

• Expandable sleeving has also obtained UL certification.

• Products comply with the applicable EU RoHS and REACH requirements, supported by relevant test reports.

Certification coverage varies by product category and specification. Please request the corresponding certificates and test reports for SB-PFT before placing an order.

Global Market Experience

Sunbow supplies insulation materials to customers across multiple international markets, serving industries including household appliances, electrical equipment, automotive systems, energy storage, telecommunications, and industrial manufacturing.

Its customer cooperation network includes internationally recognized companies such as Siemens, Schneider, Philips, Panasonic, Toshiba, ABB, Electrolux, and other manufacturers.

The company also serves automotive supply chains, with products indexed in the International Material Data System (IMDS), according to its company information.

Ordering Information

To help us provide the appropriate Polyimide Film Tubing specification, please include the following details in your inquiry:

• Required inside diameter.

• Required wall thickness.

• Required tubing length.

• Intended operating temperature.

• Application and installation environment.

• Estimated order quantity.

• Any specific electrical or mechanical performance requirements.

Custom dimensions are available upon request. Technical requirements and application details can be submitted for product evaluation and quotation.

Reliable Polyimide Insulation Tubing Supply

For manufacturers seeking insulation tubing with thermal stability, electrical insulation properties, and mechanical protection, SB-PFT provides a versatile solution for electrical and industrial applications.

Supported by established manufacturing facilities, an experienced R&D team, and a broad insulation material portfolio, Shenzhen Sunbow Insulation Materials MFG. Co., Ltd. supplies insulation products for diverse industrial requirements.

Contact us to learn more about Polyimide Film Tubing SB-PFT, discuss customized dimensions, and request product specifications for your application.