3M™ Polyimide Film Electrical Tape 1218


3M 1218

This tape is amber with a 1-mil polyimide film backing with a solvent-resistant acrylic adhesive system. It is designed for exceptional heat resistance and solvent resistance and is recommended for use on coils, capacitors, harnesses and as a cover layer for many flexible printed circuits.

3M™ Polyimide Film Tape 1218 is UL-recognized for use at temperatures up to 180 degrees C (formerly known as Class H). Unlike most such tapes, the 3M polyimide film tape 1218 has an acrylic pressure-sensitive adhesive


  • 1 mil polyimide backing
  • Acrylic adhesive

Typical Applications: 

  • 3M Tape 1218 is used for high temperature electrical applications in which a tough, thin insulating material that is solvent-resistant is required for wrapping coils, transformers, capacitors and wire harnesses.
  • It is also used as a cover layer material for many types of flexible printed circuits.

Data Sheets & Summary Sheets


WARNING: California Proposition 65 - Cancer and Reproductive Harm - www.P65Warnings.ca.gov