Fabricators of Adhesive Tapes & Flexible Materials
MBK 5A-108ESR Polyurethane Ester Foam Tape is an open cell 1/8" thick polyurethane ester foam, supported with polyester film and coated on one side with a removable acrylic adhesive. The structural adhesive lamination of film to foam provides excellent performance when exposed to vibration and humidity.  This tape is often used as a die packing foam for for flexible magnetic dies and other light duty foam sealing applications.  

Polyurethane Ester Foam Tape is available in thickness from 1/8" to 1/2". Custom adhesives, sizes and shapes available upon request.
Unit of Measure



Brand Part Number


Primary Application

N/A Damping Gaskets Packaging Sealing

Application Description

  • Used as a die packing foam for flexible magnetic dies
  • Used as a sound and vibration dampening material in computers
  • Seals against air, dust and light


  • Clean removability
  • Excellent performance when exposed to vibration and humidity
  • Flammability UL-94-HF1 and MVSS 302
  • RoHs Compliance

Markets Served

N/A Aerospace Defense Electrical Electronics Manufacturing Recreation Construction


N/A Polyurethane Ester Foam with Polyester Film

Adhesive Coating

N/A Single Coated

Adhesive Type

N/A Acrylic

Maximum Width/ Master Roll Width

N/A 54 in

Service/Operating Temperature

N/A up to 175 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.

Tensile Strength

N/A 15 psi
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