3M™ Scotch® Transparent Film Tape 640

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

Clear

Total Tape Thickness

0.048 mm

1.9 mil

ASTM D3652

Backing Thickness

0.03 mm

1.2 mil

ASTM D3652

Backing

Paklon™

Adhesive

Pressure sensitive acrylic

Typical Performance Characteristics

Property

Values

Method

Backing

Notes

180° Peel

Adhesion

2.5 N/cm

22 oz/in

ASTM

D3330

2 mil

Aluminum

Foil

12 in/min (300 mm/min)

72 hr dwell on Stainless Steel

Tensile

Strength

56 N/cm

32 lb/in

ASTM

D3759

Machine Direction

Elongation

at Break

65 %

ASTM

D3759