Everything You Need to Know About Kapton Tape and Custom Solutions

In the demanding world of modern manufacturing—where precision, durability, and safety are non-negotiable—Kapton tape has become a go-to insulation and protection material. From aerospace to PCB assembly, its ability to withstand extreme heat and maintain dielectric stability makes it one of the most versatile high-performance tapes on the market.

At CT Tape, we specialize in industrial adhesive and insulation solutions tailored to B2B clients. Our expertise lies not just in supplying Kapton tape, but in engineering custom solutions that improve process efficiency and reliability.

What Is Kapton Tape?

Kapton tape is a polyimide film tape made from DuPont™ Kapton® material, often coated with silicone adhesive for high-temperature resistance. It combines flexibility, electrical insulation, and chemical stability even in harsh environments.

Property	Typical Range / Description
Base Material	Polyimide (DuPont™ Kapton®)
Color	Amber / Golden
Thickness	25μm – 125μm
Temperature Range	–250 °C to +260 °C
Adhesive Type	Silicone / Acrylic / No adhesive
Dielectric Strength	≥ 6.5 kV
Certifications	UL94 V-0, RoHS, REACH compliant

Key Features and Benefits

• High-Temperature Resistance: Operates continuously up to 260 °C, with peaks near 400 °C.
• Excellent Electrical Insulation: High dielectric strength, prevents short circuits in sensitive components.
• Chemical and Solvent Resistance: Maintains integrity under oils, acids, bases, and radiation.
• Thin and Flexible: Ideal for irregular shapes and precision masking.
• Customizable Adhesion: Available with silicone, acrylic, or no adhesive backing.

Applications Across Industries

• Electronics: PCB masking, battery insulation, EMI shielding.
• Aerospace: Wire harness and satellite insulation.
• Automotive: EV battery packs and motor windings.
• 3D Printing: Bed surface protection and thermal control.
• Medical: Non-outgassing insulation in sensitive devices.

CT Tape manufacturing process: coating, curing, slitting, die-cutting, inspection, and packaging

CT Tape Customization & Manufacturing Process

Unlike generic suppliers, CT Tape provides end-to-end customization:

• Widths from 3 mm to 500 mm
• Thickness from 25 μm to 125 μm
• Custom die-cuts and laminated composites
• Adhesive system customization (silicone, acrylic, hybrid)
• Private labeling and short-run prototyping

Manufacturing Workflow

1. Polyimide Film Selection
2. Adhesive Coating
3. Curing & Slitting
4. Die Cutting / Lamination
5. Quality Control
6. Packaging & Dispatch

Kapton Tape vs. PET vs. Glass Cloth Tape

Case Study: Reducing Lead Time by 40% for an Electronics Manufacturer

Client: A PCB assembly company in Texas

Challenge: Long lead times and adhesive failure during reflow.

Solution: CT Tape supplied custom die-cut Kapton masks with pre-cured silicone adhesive, reducing lead time from 28 to 17 days.

Result: 40% faster delivery, zero delamination, and renewed contract for multi-site supply.

How to Choose the Right Kapton Tape

Frequently Asked Questions

References

• DuPont™ Kapton® Polyimide Film – Official Technical Data
• ASTM D5213-19: Standard Specification for Polyimide Film
• UL 94 V-0 Flame Retardancy Test Method – UL Standards
• European Commission – REACH Regulation Compliance
• CT Tape Kapton Polyimide Tape

About CT Tape

CT Tape provides industrial adhesive and insulation materials for the electronics, automotive, and aerospace industries. With in-house coating and die-cutting, CT Tape delivers fast lead times, flexible customization, and engineering support globally.