3M™ Polyester Tape 8991 is a transparent blue, high temperature tape with a silicone adhesive and thin polyester backing. The silicone adhesive grabs on contact, offering reliable adhesion and high heat and chemical resistance. The thin, high-strength, polyester backing resists shrinking, curling, tearing and edge lifting, providing optimal results for many applications.
Pressure-sensitive silicone adhesive grabs on contact for reliable masking
Silicone adhesive offers high heat and chemical resistance
High-strength backing resists shrinking, curling, tearing and edge lifting
Thin backing leaves sharp, clean paint lines
Removes without adhesive residue and leaves a clean finish
Meets the Demands that Come with High-Temperature Applications
We engineered 3M™ Polyester Tape 8991 as a pressure-sensitive silicone adhesive that grabs on contact and offers high heat resistance, reducing failure due to softening, oozing and adhesive transfer. This high-temperature tape is also designed with a thin polyester backing that resists shrinking, curling, tearing and edge lifting, offering reliable masking and consistent results. With a 1.0 mil polyester backing and 1.4 mil silicone adhesive, this tape features sharp, clean paint lines and provides excellent thermal, abrasion and chemical resistance while maintaining flexibility. In addition, 3M™ Polyester Tape 8991 removes without leaving behind adhesive residue, for a clean finish. Our Polyester Tape 8991 performs up to 400°F/204°C and adheres well to tough-to-stick-to surfaces like silicone liners and fixtures coated with mold release.
3M™ Polyester Tape 8991 can be used in many applications, including:
Masking in e-coating, electroplating and anodizing
Masking for powdercoat painting
Flashbreaker tape when pulling through cured coating such as epoxies
Holding material, securing parts and sealing of vacuum bags during autoclave processes
Splicing, tabbing and roll closing difficult-to-stick surfaces such as silicone treated liners
Ready for High Temp Challenges
When you need a strong tape that will deliver reliable masking and sharp, clean paint lines in high-temperatures, our Polyester Tape 8991 is an exceptional choice. For optimal results for many applications, 3M™ Polyester Tape 8991 provides the strength, durability and clean finish you've come to expect from 3M tapes.
Transportation, Specialty Vehicle, Construction, Automotive, Military & Government, General Industrial, Appliance, Electronics, Print