1. 3M Products
  • 3M™ Polyester Tape 8991, Blue, 51 mm x 66 m, 0.061 mm
  • 3M™ Polyester Tape 8991, Blue, 51 mm x 66 m, 0.061 mm

    3M ID 7000049779
    • 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
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    Specifications
    Adhesive Type
    Silicone
    Backing Material
    Polyester
    Backing Thickness (metric)
    0.025 mm
    Back-Side Adhesive Thickness (metric)
    0.04 mm
    Brand
    3M™
    Elongation at Break
    1
    Industries
    Appliance, Automotive, Construction, Electronics, General Industry, Military and Government, Print, Specialty Vehicle, Transportation
    Maximum Operating Temperature (Celsius)
    204 Degree Celsius
    Product Colour
    Blue
    Product Form
    Roll
    Shelf Life in Months (from date of manufacture)
    24
    Tensile Strength (metric)
    508 N/100mm
    Total Tape Thickness without Liner (metric)
    0.061 mm
    Units per Case
    24 Roll
    Details
    • 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

    Thin and conformable, our 3M™ Polyester Tape 8991 is a general purpose tape that excels in high temperature masking operations such as powder coat painting. Coated with a silicone adhesive, this tape bonds to a variety of difficult surfaces. It is chemical resistant and performs under a wide range of temperatures and environments.

    Effectively Mask in High Temperature Applications 3M™ Polyester Tape 8991 is a general purpose polyester tape ideal for masking in high temperature applications. Coated with a silicone adhesive, this tape functions well in masking for powder coating and anodizing to provide sharp paint lines. It removes cleanly and in one-piece from most surfaces, avoiding slivering and breaking. With good chemical resistance, this tape works effectively in chemical processes and demanding work conditions, such as anodizing. The pressure sensitive silicone adhesive performs under a broad range of temperatures ranging from -60°F (-50°C) to 400°F (204°C). Recommended applications: - Masking parts for high temperature powder coat painting - Holding parts or vacuum bags during composite bonding operations - Masking metal surfaces in acid or caustic chemical milling baths - Protective tape reduces scratches during handling and shipping Key characteristics: - Works in demanding conditions and high temperatures ranging from -60ºF (-50ºC) to 400ºF (204ºC) - Clean removal during high-temperature masking operations such as powder coating - Polyester film offers excellent thermal and chemical resistance while maintaining flexibility - Silicone adhesive provides clean removal from a variety of surfaces - Translucent blue backing provides easy identification and positioning

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