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

Our Services

3M 8998 Data Sheet

Property	Values
Backing	Polyimide
Adhesive Type	Silicone
Color	Black
Backing Thickness	0.051 mm
Total Tape Thickness	3.3 mil (0.085 mm)
Total Tape Thickness	0.085 mm
Backing Thickness	2 mil
Tensile Strength	96.3 N/cm
180° Peel Adhesion	2 N/cm (19 oz/in)
180° Peel Adhesion	19 oz/in
Tensile Strength	880 oz/in
Elongation at Break	49%
Long Term Temperature Resistance	260 °C (500 °F)
Long Term Temperature Resistance	500 °F
Standard Roll Length	33 m (36 yd)
Standard Roll Length	36 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.