3M

3M 1318-1Y Polyester Film Electrical Tape

1318-1Y

3M™ Yellow Polyester Film Electrical Tape 1318-1Y is a yellow colored industrial grade 2.5 mil tape constructed with a polyester film backing mated to a pressure sensitive acrylic adhesive. This product is used for wrapping coils, capacitors, wire harnesses, transformers, shaded pole motors and fractional horsepower motors. Designed and constructed for demanding industrial usage, this product resists flagging and solvents which allows for usability even when cleaning solvents and mineral oil are present. This product also exhibits good wet grab, an excellent shelf life, smooth unwinding and a printable backing.

Excellent flagging resistance
Solvent resistant without thermosetting
Designed for continuous operation not exceeding 130°C (266°F) per UL listing

Color: Yellow

Backing/Carrier Material: Polyester Film

Adhesive Type: Acrylic

TotalThickness: 2.5 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

Excellent flagging resistance
Solvent resistant without thermosetting
Designed for continuous operation not exceeding 130°C (266°F) per UL listing
UL 510A Flame Retardant
Printable
Offers good wet grab
Smooth, even unwind

Specifications

Color	Yellow
Backing/Carrier Material	Polyester Film
Adhesive Type	Acrylic
Total Thickness	2.5 mil
Backing/Carrier Thickness	1 mil
Adhesive Thickness	1.5 mil
Adhesive Strength	25 oz/in
Tensile Strength	20 lb/in
Elongation	50%
Dielectric Breakdown	5,000 volts
Insulation Resistance	1 x 10¹² ohms
Minimum Temperature Performance	32°F
Maximum Temperature Performance	266°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™ Polyester Film Electrical Tape 1318 is a durable polyester film tape. Coated with a high-quality acrylic pressure-sensitive adhesive, delivering reliable electrical insulation and secure bonding.

Engineered for excellent flagging resistance and superior solvent resistance, this tape is ideal for coil wrapping, anchoring, harnessing, and layer insulation in demanding electrical and industrial applications.

Commonly used in wrapping coils, capacitors, wire harnesses, transformers, shaded pole motors and fractional-horsepower motors
Applications where cleaning solvents and mineral oil are present

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