2 Mil Polyimide Discs

Starting at $30.3912
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2 Mil Polyimide Discs

These discs/dots are manufactured from commercial grade polyimide film with a special silicone adhesive. Designed for high temperature masking found in conformal coating of PCBs, protection of gold fingers during circuit board soldering and electrical insulation of high temperature coils, motors and transformers. 

Product Features

  • Temperature Rating: 500° F / 260° C
  • All die cuts 3/8" or larger come standard with a split-back liner. Split liner for smaller dimensions upon request
  • Meets Class H Requirements, flame retardant
  • Excellent dielectric strength and chemical resistance
  • Removes cleanly even after long bake cycles with no residue
  • Used in Powder Coating, E-Coating, Wave Soldering, Hot Air Leveling, and Circuit Board Insulation
  • Standard die cut sizes in stock or can be made to your specifications 


  • 2 Mil Polyimide Carrier
  • 1.5 Mil Silicone Adhesive
  • 3.5 Mil Total Thickness


  • Tensile Strength (lb/in) - 44
  • Elongation (%) - 100
  • Steel Adhesion (oz/in) - 21
  • Dielectric Strength - 7.0

Polyimide is also known by the trade name Kapton™. If you require the trademarked brand, please inquire with your CFS representaive on pricing.

ProcessPlating, Powder Coating, E-Coating
Temperature Range0 - 500 F