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3M™ Heavy Duty Aluminum Foil Tape 438 Silver, 38 mm x 400 m 7.2 mil, 2 rolls per case, Obsolete

3M ID  70006385531    UPC#  00021200426414    3M Product Number  438     
3M(TM) Aluminum Foil Tape 4380 2 inch x 55 yd Roll Standing
3M(TM) Aluminum Foil Tape 4380 2 inch x 55 yd Roll Standing
3M™ Heavy Duty Aluminum Foil Tape 438 Silver, 7.2 mil (0.18 mm) aluminum foil tape with pressure sensitive acrylic adhesive.
  • Heavy duty aluminum foil tape, 5.0 mil thick foil backing
  • Heavy duty patch tape for aircraft and truck trailer skins, barrier for vinyl coated wires in appliance industry, U.L. 723, F.A.R. 25.853(a)
  • Resists flame, resists moisture, resists weather, resists UV degradation, chemical resistant tape, thermally conductive tape for heating and cooling efficiency, heat reflective tape, light reflective tape, conformable tape
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3M™ Heavy Duty Aluminum Foil Tape 438, dead-soft aluminum foil backing, excellent heat and light reflection to protect against high temperatures and U.V. degradation. The foil also serves as an excellent barrier against moisture. Acrylic adhesive supplies superior temperature, U.V. and solvent resistance. It provides excellent age life and is ideal for harsh, long-term outdoor environments. Thickest aluminum foil tape. Meets F.A.R 25.853(a) and meets UL 723 Class L.


 Adhesion to Steel oz/in (N/100 mm)‎‎ 43 (47)
 Adhesive Type‎‎ Acrylic
 Backing Material‎‎ Aluminum Foil
 Backing Thickness‎‎ 5 mil
 Backing Thickness (metric)‎‎ 0.18 mm
 Brand‎‎ 3M
 Color‎‎ Silver
 Elongation‎‎ 10 Percent
 Industries‎‎ Transportation,‎ Specialty Vehicle,‎ Metalworking,‎ Construction,‎ Automotive,‎ Military & Government,‎ General Industrial,‎ Appliance,‎ Electronics,‎ Aerospace
 Length‎‎ 437.44 Linear Yard
 Length (Metric)‎‎ 400 m
 Maximum Operating Temperature (Celsius)‎‎ 149 Degree Celsius
 Maximum Operating Temperature (Fahrenheit)‎‎ 300 Degree Fahrenheit
 Meets Specifications‎‎ F.A.R. 25.853(a)
 Operating Temperature Range (Celsius)‎‎ -54 to 149 Degree Celsius
 Operating Temperature Range (Fahrenheit)‎‎ -65 to 300 Degree Fahrenheit
 Product Form‎‎ Roll
 Shelf Life in Months (from date of manufacture)‎‎ 24
 Tensile Strength‎‎ 59 lb/in
 Tensile Strength (metric)‎‎ 1033 N/100mm
 Total Thickness‎‎ 7.2 mil
 Width‎‎ 1.49 Inch
 Width (Metric)‎‎ 38 mm