Polyimide tape is utilized in electronic components for space exploration as well as Apple products. It is a low-outgassing material with high temperature resistance, excellent thermal conductivity, and low radiation interference. Indispensable as masking in wave soldering and powder coating, Polyimide's properties make it ideal for electric insulation in X-Ray devices and radioactive environments too. Kapton is the perfect super tape for any space age atomic sci-fi mad scientist application.Note: Does not block X-Ray vision or Kryptonite rays, red or green.Our Polyimide tape is a perfect match for the .5" width tape most often used by Apple (# 922-1731). You may only need a few inches, but this 108 foot roll is priced cheap enough to share with your friends or keep it as a lifetime supply!This tape is compatible with the properties of and can be used in place of 3M Kapton® polymide tape part# KPT-1/2.