DOMADIA™ Polyimide FEP Coated Film (Double Side Coated)

Product Overview

DOMADIA™ Polyimide FEP Coated Film (Double Side Coated) consists of a polyimide core laminated on both sides with FEP film, offering symmetrical barrier protection and advanced thermal, chemical, and mechanical characteristics. This film is a superior insulation material for applications where dual-side heat sealing, moisture resistance, and chemical protection are critical.

Here is a detailed applications section for DOMADIA™ Polyimide FEP Coated Films – Double Side Coated, written with clarity, precision, and technical relevance for industrial use:

Applications – Double Side FEP Coated Films

1. High-performance Cable Insulation

Used in aerospace, military, and EV-grade cables, these films provide dual-side chemical and moisture resistance, making them ideal for harsh environments. The symmetrical FEP coating ensures smooth layering and consistent dielectric performance across the cable length.

2. Heaters and Flexible Electronics

Serves as a substrate and encapsulant for thin-film heaters and circuits. Double FEP layers allow for lamination and sealing on both sides, protecting electronic traces from moisture, abrasion, and oxidation. Common in seat heaters, medical warming pads, and flexible display backings.

3. Pressure Sensor Components

Acts as a stable dielectric layer in sensor assemblies, especially where pressure, temperature, and chemical exposure are factors. The dual FEP coating helps maintain signal integrity and material flexibility under mechanical stress.

4. Chemical Process Liners

Used to line flexible tubing, gaskets, and covers in chemical handling systems. FEP’s non-stick, corrosion-resistant surface protects polyimide from direct exposure, extending the service life in acidic or alkaline environments.

5. Semiconductor Equipment Insulation

Ideal for use inside cleanroom and high-vacuum systems in semiconductor manufacturing. The films act as non-outgassing, thermally stable insulators, essential in plasma etching, wafer handling, and lithography tools.

6. Aerospace Harnesses & Shields

Used as protective wraps or barriers for cabling and shielding in aircraft and spacecraft. FEP on both sides enhances abrasion resistance and prevents damage from chemical leaks or hydraulic fluids, ensuring mission-critical reliability.

Key Properties

Technical Literature

• FEP on both sides ensures non-stick and chemical barrier properties throughout.
• Retains flexibility and insulation in extreme temperatures.
• Provides double bonding capability—ideal for lamination and sealing.
• Meets RoHS and REACH compliance for electronics.
• Excellent for acidic/alkaline chemical handling applications.

Customization Options

• Thicknesses: From 25μm up to 200μm total.
• Widths: Roll widths from 10mm up to 1000mm.
• Core Options: 3” or 6” paper/plastic cores.
• Cutting: Custom slit rolls or sheets available.

Available Sizes & Thickness Table

The base DOMADIA™ polyimide film is available in various thicknesses. A 13μm layer of FEP is applied on each coated side. The total thickness is calculated accordingly:

Let’s Talk Performance

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  Whether you need heat resistance, chemical protection, or electrical insulation, these films are engineered to meet your needs.

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