438

438 Datasheet


438

Part Datasheet
438 438 438 (pdf)
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3 Heavy Duty Aluminum Foil Tape

Technical Data

Product Description
3M Heavy Duty Aluminum Foil Tape 438 has a transparent acrylic adhesive to use when a heavier weight foil is required.

Product Construction

Backing Aluminum foil

Adhesive Acrylic

Color Shiny silver

Standard Roll Length 60 yds. 55 m

Typical Physical Properties

Note The following technical information and data should be considered representative or typical only and should not be used for specification purposes.

ASTM Test Method

Adhesion to Steel:
43 oz./in. width 47 N/100 mm

D-3330

Tensile Strength:
59 lbs./in. width 1033 N/100 mm

D-3759

Elongation at Break:

D-3759

Backing Thickness:
mils mm

D-3652

Tape Thickness:
mils mm

D-3652

Temperature Use Range:
-65° to 300°F -54° to 149°C

Water Vapor Transmission Rate gms H2O/100 sq. in./24 hrs. g/m2/24 hrs.

D-3833

Weight:
lbs./yd./in. width kg/m/24 mm
• Flame resistant. Meets U.L. 723, Class “L” low flammability rating File R
• Meets requirements of F.A.R. 25.853 a .
• Foil backing provides an excellent reflective surface for both heat and light.
• Aluminum foil backing and acrylic adhesive system combine to offer long aging both indoors and out.
• The high coefficient of expansion offered by the aluminum allows expansion and contraction with changes in temperatures, along with thermal conductivity.
• Performs in a range from -65° to over 300°F -54° to 149°C . Higher temperatures for shorter periods of time.
3M Heavy Duty Aluminum Foil Tape

Application Ideas
• Barrier, protector and thermal conductor in appliance electronics industry.
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Datasheet ID: 438 518032