3M™ Aluminum Foil Tape 439

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Linered version of our 3M™ Aluminum Foil Tape 431

Thermally conductive tape helps dissipate heat and improves heating and cooling efficiency to protect temperature sensitive materials

Highly engineered acrylic adhesive provides long term durability, but removes cleanly after harsh masking applications

Overall Width (Imperial)

Overall Width (Metric)

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Details

Highlights

Linered version of our 3M™ Aluminum Foil Tape 431
Thermally conductive tape helps dissipate heat and improves heating and cooling efficiency to protect temperature sensitive materials
Highly engineered acrylic adhesive provides long term durability, but removes cleanly after harsh masking applications
Dead soft aluminum foil backing conforms to curved and uneven surfaces
Withstands exposure to flame, weathering, moisture and UV
Heat and light reflective tape protects surfaces and enhances lighting efficiency
Classified by UL to UL 723, Class "L" for low flammability rating

3M™ Aluminum Foil Tape 439 is a high-performance foil tape designed for numerous applications across a broad range of industries. Comprised of a dead soft aluminum foil backing with a highly engineered pressure sensitive acrylic adhesive, it is ideal for heat shielding, heat reflecting, light enhancement, seaming and sealing.

Withstands Exposure to High Heat and Humidity
Consisting of a dead soft, thermally conductive aluminum backing, 3M™ Aluminum Foil Tape 439 (PDF, 11 Kb) dissipates heat over the surface of the tape to reduce hot spots and protect the substrate from the effects of high temperatures. It is a linered version of our 3M™ Aluminum Foil Tape 431, making it suitable for die cutting applications. Coated with our highly engineered acrylic adhesive, it is capable of withstanding exposure to high heat and humidity while maintaining a strong and reliable bond. This tape can withstand a variety of moisture, weathering, UV and solvents in order to provide an excellent work life, indoors or out.

Recommended Applications

Heat shielding of delicate parts
Heat reflecting
Moisture barrier
Light reflecting for light enhancement
Seaming and sealing
Refrigerator and freezer coil attachment
Plastic protection

3M™ Aluminum Foil Tape 439 is Classified by UL to UL 723 "L" for low flammability rating (File R 7311). It meets F.A.R 25.853(a). Temperature use range is from -65° to 300°F (-54° to 149°C).

Typical properties

Details

Adhesive Type	Acrylic
Application	EMI RFI Shielding of Seams
Back Side Adhesive Thickness (Metric)	0.05 mm
Backing (Carrier) Thickness (Imperial)	1.9 mil
Backing (Carrier) Thickness (Metric)	0.05 mm
Backing Material	Aluminum Foil
Brands	3M™
Elongation at Break	3.0 %
Industries	Military & Government, Specialty Vehicle, Metalworking, Aerospace, Construction, Electronics, Transportation, Automotive, General Industrial, Appliance, Military
Maximum Operating Temperature (Celsius)	149 ℃
Maximum Operating Temperature (Fahrenheit)	300 ℉
Minimum Operating Temperature (Celsius)	-54 ℃
Minimum Operating Temperature (Fahrenheit)	-65 ℉
Primary Liner	Kraft Paper with Silicone Release
Product Color	Silver
Shelf Life	24 Month
Smallest Saleable Unit	Roll
Tensile Strength (Imperial)	18.0 lb/in
Tensile Strength (Metric)	31.5 N/100mm, 315 N/100mm
Total Tape Thickness without Liner (Imperial)	3.1 mil
Total Tape Thickness without Liner (Metric)	0.08 mm

Dimensions and Classifications

Overall Length (Imperial)	60 yd, 60.14 yd, 180 yd, 360 yd
Overall Length (Metric)	54.86 m, 54.864 m, 55 m, 164.59 m, 329.184 m
Overall Width (Imperial)	1.375 in, 3.24 in, 3.5 in, 6 in, 9.84 in, 12 in, 13 in, 36 in
Overall Width (Metric)	1.257 mm, 82.29 mm, 88.9 mm, 152.4 mm, 250 mm, 304.8 mm, 330.2 mm, 914.4 mm

Resources

3M™ Aluminum Foil Tape 439

Other

(PDF, 97KB)

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	Current product 3M™ Aluminum Foil Tape 439	3M™ Aluminum Foil Tape 427	3M™ Heavy Duty Aluminum Foil Tape 438	3M™ Aluminum Foil Tape 425
Backing (Carrier) Thickness (Imperial)	1.9 mil
Overall Width (Metric)	1.257 mm, 82.29 mm, 88.9 mm, 152.4 mm, 250 mm, 304.8 mm, 330.2 mm, 914.4 mm
Overall Width (Imperial)	1.375 in, 3.24 in, 3.5 in, 6 in, 9.84 in, 12 in, 13 in, 36 in
Backing (Carrier) Thickness (Metric)	0.05 mm
Adhesive Type	Acrylic

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use. Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice. Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage. For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.