Fabricators of Adhesive Tapes & Flexible Materials

MBK KFT1 is a 1 mil polyimide film backing with a high performance silicone adhesive. The product is designed for numerous high temperature masking applications, including the protection of printed circuit board gold finger contacts during wave soldering. It is UL approved for use in electrical insulation application, meeting class H requirements.

Standard rolls of polyimide film are available in different grades and 1mil or 2mil thicknesses. Custom adhesive backings, sizes, and shapes available upon request.

Unit of Measure



Brand Part Number


Primary Application

N/A Gaskets Masking Sealing

Application Description

  • Used for high temperature insulating & masking
  • Protects circuit board gold finger contacts during wave solder or hot air leveling process


  • Thin and conformable
  • Wide operating temperature range up to 400 F
  • Resistant to chemical
  • Resistant to abrasion, punctures and tears
  • Removes cleanly
  • Excellent electrical insulation
  • UL Approved EL75052
  • Flame Retardant

Markets Served

N/A Automotive Electrical Electronics Manufacturing Transportation


N/A Polyimide Film

Adhesive Coating

N/A Single Coated

Adhesive Type

N/A Silicone

Adhesive Thickness

N/A 2.6 mil


N/A Amber

Maximum Width/ Master Roll Width

N/A 25 in

Service/Operating Temperature

N/A 400 ºF

N/A The physical properties listed are typical values based on PSTC, ASTM and other standard tests. This data should be used as guides only, and not as specification limits. Our recommendations for use are based on practical experience and testing. However, it is the responsibility of the user to determine the suitability of the product for his intended use. MBK Tape Solutions will not assume liability for claims beyond the replacement value of our product proved to be defective.

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