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SKU 7100014530
Legacy SKU 70006745445
UPC 00051115647352
Product Number 8991

Thin and conformable, 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.

  • 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
Estimated date of shipment June 21   


Minimum Order 1 Roll
Order Increment 1 Roll
  Global Shipping
  Industry Low Price Per Roll
Product Dimensions
Imperial Metric
Width 50.4 in 1280 mm
Length 72 yd 65.83 m
Shipping Dimensions
Weight 19.85 lb
Length 54.5 in
Width 6.5 in
Height 6.5 in
Color Blue


  1. What kind of adhesive does the 3M Polyester Tape 8991 have?

    The tape has a strong acrylic adhesive that bonds well to a wide variety of surfaces.

  2. Is the blue color of the tape important or just for aesthetic purposes?

    Actually, the blue color is more than just cosmetic. It provides easy identification and inspection during application and use.

  3. What are some common applications for this particular tape?

    This tape is commonly used in industrial applications such as powder coating, electrical insulation, and splicing of silicone-treated surfaces.

  4. How many rolls come in one case of 3M Polyester Tape 8991?

    One case contains one roll of this specific size –1280 mm x 65.8 mm –of high-quality polyester tape from trusted brand 3M.

For industrial/occupational use only. Not for consumer sale or use.
3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.
Effectively Mask in High Temperature Applications
3M™ Polyester Tape 8991 is a general purpose, thin, conformable polyester tape ideal for masking in high temperature applications. The translucent blue backing is tear resistant. Coated with a silicone adhesive, this tape functions well in masking for powder coating 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
Brochures, Catalogs & Data Sheets
  • Pdf   Brochures_masking and bonding
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