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3M 1205 Polyimide Film Electrical Tape

3M™ Polyimide Film Tape w/Acrylic Adhesive 1205 is a 3 mil industrial grade tape product constructed with a Kapton polyimide film backing. This product is used in high temperature electrical applications that call for a strong, thin, solvent resistant insulating layer or wrap for various electrical components including coils, transformers, capacitors, wire harnesses, and flexible printed circuits.

Highly conformable
Acrylic adhesive provides optimized adherence
Designed for continuous operation not exceeding 155°C (311°F) per UL listing

Color: Amber

Backing/Carrier Material: Polyimide Film

Adhesive Type: Acrylic

TotalThickness: 3.2 mil

Overview
Customize
Features
Specifications
Compliance
Resources

Overview

Consult

Specify a finalized design or create a new one from scratch with our experienced converting experts.

Design

Pair our material sampling library with our precision converting capabilities to optimize and validate a prototype.

Produce

Rely on our top-tier suppliers, strict quality controls, and hands-on help to ensure your product's effectiveness throughout its lifecycle.

Customize

Customize This Material

Our wide range of converting capabilities allow us to take this material and transform it into the right width, length, shape or fabricated part to not only achieve ideal integration into your end use, but also optimize how you apply the material in your application. Our converting equipment paired with our expert engineering team will help you create the exact custom solution for your unique requirements.

To learn more about the most common converting services we offer, or to contact our team to start discussing your solution, please utilize the below links:

Tape Slitting

Die-Cutting

Custom Part Fabrication

Prototyping

Custom Length Rolls

Features

Highly conformable
Acrylic adhesive provides optimized adherence
Designed for continuous operation not exceeding 155°C (311°F) per UL listing
UL 510A Flame Retardant
Highly resistant to heat and solvents

Specifications

Color	Amber
Backing/Carrier Material	Polyimide Film
Adhesive Type	Acrylic
Total Thickness	3.2 mil
Backing/Carrier Thickness	1 mil
Adhesive Thickness	2.2 mil
Adhesive Strength	20 oz/in
Tensile Strength	20 lb/in
Elongation	50%
Dielectric Breakdown	6,000 volts
Insulation Resistance	1 x 10¹² ohms
Flame Retardant	Yes
Minimum Temperature Performance	-40°F
Maximum Temperature Performance	311°F

Compliance

We value the importance of up to date an accurate regulatory information on the products we work with. For the most current Compliance and Regulatory information on your product of interest, please contact our experts for assistance.

Resources

Technical Data Sheet

3M™ Polyimide Film Electrical Tape 1205 is a high-performance, flame-retardant insulating tape designed for applications that demand a thin yet durable dielectric layer.

Backed with heat-resistant polyimide film, this insulation tape is ideal for wrapping transformers, capacitors, coils, and wire harnesses in high-temperature environments.

It maintains excellent electrical insulation and mechanical strength across a wide temperature range from -40°C to 155°C (-40°F to 311°F), ensuring long-lasting performance without degradation of electrical properties or tensile strength.

Wrapping coils, capacitors, wire harnesses, transformers and anchoring leads
Printed circuit board assembly as a solder masking tape

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