3M™ Polyester Tape 8991/8991L

Technical Information Note

The following technical information and data should be considered representative or typical only and should not be

used for speci cation purposes.

Typical Physical Properties

Property

Values

Method

Color

Blue

Total Tape Thickness

0.061 mm

2.4 mil

ASTM D3652

Backing Thickness

0.025 mm

1 mil

ASTM D3652

Backing

Polyester

Adhesive

Silicone

Liner

Polyester

Liner Thickness

0.075 mm

3 mil

ASTM D3652

Typical Performance Characteristics

Property Values

Method

Dwell/Cure

Time

Substrate

Notes

180°

Peel

Adhesion

3.4 N/cm

31 oz/in

ASTM

D3330

Initial

Stainless

Steel

12 in/min (300 mm/min)

Tensile

Strength

50.8

N/cm

464 oz/in

ASTM

D3759

Elongation

at

Break

100 %

ASTM

D3759

Temperature

Use

Range

Up to 204

°C

Up to 400

°F