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3M 8998 Kapton tape

3M 8998 Kapton tape

3M 8998 is a dark amber-colored polyimide tape with a silicone adhesive meant to withstand heat during high-temperature masking operations.

  • Brand:3M
  • Model No.:8998
  • Color: Dark amber
  • Material: Polyimide film
  • Adhesive: Silicone
  • Die-cutting: Any shape and any size
  • Width: Cut any width
Data Sheet
Features
Applications

3M 8998 Kapton tape Data Sheet

PropertyValues
BackingPolyimide
Adhesive TypeSilicone
ColorBlack
Backing Thickness0.051 mm
Total Tape Thickness3.3 mil (0.085 mm)
Total Tape Thickness0.085 mm
Backing Thickness2 mil
Tensile Strength96.3 N/cm
180° Peel Adhesion2 N/cm (19 oz/in)
180° Peel Adhesion19 oz/in
Tensile Strength880 oz/in
Elongation at Break49%
Long Term Temperature Resistance260 °C (500 °F)
Long Term Temperature Resistance500 °F
Standard Roll Length33 m (36 yd)
Standard Roll Length36 yd

3M 8998 Kapton tape Features

  • Dark amber-colored 2.0 mil polyimide backing with 1.2 mils silicone pressure-sensitive adhesive
  • Ideal for high-temperature applications
  • Seals tight on contact peels off clean up to 500°F/260°C
  • Exceptional tensile strength to break through cured paint
  • Excellent thermal, chemical, and abrasion resistance
  • Thin backing for sharp paint line
  • Polyimide films offer excellent thermal, abrasion, and chemical resistance while maintaining their flexibility.
  • Amber 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 adhesive removes cleanly from many surfaces.
  • The linered version is available for die-cuts.

3M 8998 Kapton tape Applications

  • Masking parts for powder coating
  • Masking edges of overlapped seams
  • The barrier of separation for dissimilar metals

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