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Adhesive Tape Materials And Whole Set Solutions

3M 8998

3M 8998

3M 8998 is a dark amber-colored polyimide tape with a silicone adhesive meant to withstand heat during high-temperature masking operations.
It offers excellent thermal, chemical, and abrasion resistance. It seals tight on contact and peels off clean at up to 500°F/260°C.

  • Brand:3M
  • Model No.:8998
  • Color: Dark amber
  • Thickness: 3.3mil/0.085mm
  • Material: Polyimide film
  • Adhesive: Silicone
  • Cutting: Any width
  • Die-cutting: Any shape and any size
Data Sheet
Features
Applications
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3M 8998 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 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.
  • Linered version is available for die-cuts.

3M 8998 Applications

  • Masking parts for powder coating
  • Masking edges of overlapped seams
  • The barrier of separation for dissimilar metals
  • Cutting or slitting to the length and width required by the customers
  • Laminate liner or other materials
  • Die cut according to customer's drawing

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