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3M 8991 Blue Polyester Tape

£245.70 (inc. VAT)
MPN: 89911
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3M Polyester Tape 8991 is a blue polyester tape with a silicone adhesive. It can be used in a large variety of high temperature applications including powdercoat masking, flashbreaker, and bag sealing applications. Additional applications include, splicing, tabbing, or roll closing silicone treated liners or materials.
  • Polyester films offer excellent thermal, abrasion, and chemical resistance while maintaining their flexibility.
  • Blue color makes tape placement obvious for both application and removal.
  • Thin backing leaves a sharp paint line and some conformability.
  • Silicone adhesives offer high heat resistance compared to many rubber and acrylic adhesives, reducing failure due to softening, oozing, and adhesive transfer.
  • Silicone adhesives adhere well to tough-to-stick-to surfaces like silicone liners and fixtures coated with mold release.
  • Silicone adhesive removes cleanly from many surfaces.
  • Linered version available for die-cuts.
Application Ideas
  • Masking for powdercoat painting.
  • Flashbreaker tape when pulling through cured coating such as epoxies.
  • Holding and splicing difficult to stick to surfaces such as silicone liner.
  • Holding parts or sealing vacuum bags during processing.

Store under normal conditions of 60° to 80°F (16° to 27°C) and 40 to 60% relative humidity in the original packaging material.
Shelf Life
To obtain best performance, use this product within 24 months from date of manufacture.
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