3M™ Polyester Tape 8991

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.

FEATURES

• Polyester films offer excellent thermal, abrasion, and chemical resistance while maintaining their exibility.
• 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.

APPLICATIONS

• Masking for powdercoat painting.
• Flashbreaker tape when pulling through cured coating such as epoxies.
• Holding and splicing dicult to stick to surfaces such as silicone liner.
• Holding parts or sealing vacuum bags during processing.