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Blue polyester film masking tape roll, 1 inch wide by 10 yards long, 3.5 mil thick

3M

3M 8902 High-Temperature Polyester Film Masking Tape Blue 1 in x 10 yd

SKU CH-Y3BR-MPXXQ

High-temperature polyester film masking tape withstands -60 °F to 400 °F with 3.5 mil thickness and silicone adhesive on a 1 in x 10 yd roll

  • ColorBlue
  • Withstands 400 °F heat for demanding masking jobs
  • Remains flexible down to –60 °F in cold environments
  • Thin 3.5 mil polyester film conforms to irregular surfaces
  • Silicone adhesive releases cleanly without residue after high-temp cycles
  • 1 in × 10 yd roll covers large areas efficiently

3M 8902 High-Temperature Polyester Film Masking Tape

This 3M 8902 tape is a high-temperature polyester film masking tape designed for demanding masking applications. It features a blue polyester film backing with a silicone adhesive system. The tape operates across a temperature range from -60 degrees F to 400 degrees F, with a maximum performance temperature of 400 degrees F. It suits industrial and professional users requiring reliable high-heat masking performance.

1 in x 10 yd roll fits precise masking tasks

The roll measures 1 inch wide by 10 yards long with a 3.5 mil thickness, providing a thin, conformable profile for intricate surfaces. Its polyester film backing resists tearing and allows clean removal after high-temperature exposure. The silicone adhesive bonds securely during thermal cycles without leaving residue. This construction frees the user from rework caused by adhesive transfer or backing failure during curing or baking processes.

Replaces standard masking tapes that fail above 40

Standard paper or general-purpose masking tapes typically lose adhesion or leave residue well below 400 degrees F. The 3M 8902 withstands continuous heat up to 400 degrees F and remains functional down to -60 degrees F. The jump is worth it when masking parts for powder coating, anodising, or composite curing where temperatures exceed the limits of conventional tapes. It is not for applications requiring widths other than 1 inch or lengths beyond 10 yards per roll.

Highlights

  • Withstands 400 °F heat for demanding masking jobs
  • Remains flexible down to –60 °F in cold environments
  • Thin 3.5 mil polyester film conforms to irregular surfaces
  • Silicone adhesive releases cleanly without residue after high-temp cycles
  • 1 in × 10 yd roll covers large areas efficiently

Specifications

Brand3M
ColorBlue

Questions about this item

At what temperature does the 3.5 mil polyester backing start to degrade under sustained use?

The tape is rated for a maximum performance temperature of 400 degrees F, which is the limit that appears first under continuous high-heat exposure.

How much heat does the silicone adhesive generate when the roll runs all day in a 400 degree F environment?

The tape itself produces no heat; it simply withstands the surrounding temperature up to 400 degrees F without adhesive failure.

What surface material must I already have for the silicone adhesive to bond properly?

The silicone adhesive bonds to clean, dry surfaces such as metal, glass or high-temperature plastics that can tolerate the 400 degree F operating range.

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