3M™ Aluminum Foil Tape 427

Linered version of 3M™ Aluminum Foil Tape 425

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

Resistant to chemicals to protect surfaces during de-paint process and other chemical masking operations

Description

3M™ Aluminum Foil Tape 427: Versatile Solutions for Thermal Management and Protection

Key Highlights:‌

Linered Version for Enhanced Usability:‌ A practical linered variant of the 3M™ Aluminum Foil Tape 425, ideal for precise die-cutting applications.
Thermal Conductivity for Heat Dissipation:‌ Effectively dissipates heat, improving heating and cooling efficiency to safeguard temperature-sensitive materials.
Chemical Resistance:‌ Protects surfaces during de-paint processes and other chemical masking operations.
Durable Adhesive with Clean Removal:‌ Features a highly engineered acrylic adhesive for long-term durability, ensuring clean removal even after harsh masking applications.
Resilience Against Elements:‌ Withstands exposure to flame, weathering, moisture, and UV, providing reliable performance in various environmental conditions.
Reflective Properties:‌ Acts as a heat and light reflector, protecting surfaces and enhancing lighting efficiency.
Flexible Backing:‌ Dead soft aluminum foil backing conforms easily to curved and uneven surfaces.
Safety and Compliance:‌ Recognized by UL to UL 746C and classified by UL to UL 723, Class "L" for low flammability rating, ensuring safety and compliance.

Product Overview:‌

The 3M™ Aluminum Foil Tape 427 is a versatile solution for a wide range of industrial applications. It combines a dead soft aluminum foil backing with a highly engineered pressure-sensitive acrylic adhesive, making it ideal for heat shielding, chemical masking, light enhancement, and more. This tape effectively manages heat by dissipating it across its surface, protecting substrates from high temperatures. Its robust adhesive maintains a strong bond under various conditions, including high heat and humidity, while also offering easy and clean removal when needed.

Recommended Applications:‌

Heat shielding of delicate parts
Heat reflecting
Masking in chemical paint stripping applications
Moisture barrier
Light reflecting for light enhancement
Chemical milling
Seaming and sealing
Refrigerator and freezer coil attachment
Splicing of thin gauge foils
Plastic protection

Certifications and Compliance:‌

UL Recognized to UL 746C (File E 122798)
Classified by UL to UL 723 "L" for low flammability rating (File R 7311)
Can be certified to meet L-T-80C
Meets F.A.R 25.853(a)
Temperature use range: -65° to 300°F (-54° to 149°C)

Typical properties

Details

Adhesive Type	Acrylic
Application	EMI RFI Shielding of Seams, Painting & Depainting, Sealing Plate Edges Against Solvent Penetration, Shielding From Engine Heat
Back Side Adhesive Thickness (Imperial)	1.8 mil
Back Side Adhesive Thickness (Metric)	0.05 mm
Backing (Carrier) Material	Aluminum Foil
Backing (Carrier) Thickness (Imperial)	2.8 mil
Backing (Carrier) Thickness (Metric)	0.07 mm
Backing Material	Aluminum Foil
Brands	3M™
Elongation at Break	6.0 %
Industries	Aerospace, Appliance, Automotive, Construction, Electronics, General Industrial, Metalworking, Military, Military & Government, Specialty Vehicle, Transportation
Maximum Operating Temperature (Celsius)	149 ℃
Maximum Operating Temperature (Fahrenheit)	300 ℉
Minimum Operating Temperature (Celsius)	-54 ℃
Minimum Operating Temperature (Fahrenheit)	-65 ℉
Primary Liner	Easy Release Film
Primary Liner Thickness (Imperial)	3.1 mil
Primary Liner Thickness (Metric)	0.08 mm
Product Color	Silver
Shelf Life	24 Month, 24 none
Smallest Saleable Unit	Roll
Specifications Met	FAR 25.853(a)
Tensile Strength (Imperial)	28.0 lb/in
Tensile Strength (Metric)	49 N/100mm, 49 N/cm, 490 N/100mm
Total Tape Thickness without Liner (Imperial)	4.6 mil
Total Tape Thickness without Liner (Metric)	0.12 mm
Units per Case	24.0,1.0,8.0,48.0
eClass 14 Classification Group	27140708

Dimensions and Classifications

Overall Length (Imperial)	60 yd, 60.14 yd, 180 yd, 360 yd
Overall Length (Metric)	54.86 m, 54.9 m, 55 m, 164.59 m, 329.184 m
Overall Width (Imperial)	1 in, 1.75 in, 1.96 in, 1.968 in, 2 in, 2.5 in, 3 in, 4 in, 5.9 in, 6 in, 6.5 in, 8 in, 9 in, 10 in, 12 in, 13 in, 15.6 in, 16 in, 18 in, 19 in, 21 in, 23.79 in, 24 in, 30 in, 38 in, 48 in
Overall Width (Metric)	2.5 cm, 25.4 mm, 30.5 cm, 33 cm, 44.45 mm, 50 mm, 50.8 mm, 63.5 mm, 76.2 mm, 101.6 mm, 150 mm, 152.4 mm, 165.1 mm, 203.2 mm, 228.6 mm, 254 mm, 305 mm, 400 mm, 406.4 mm, 457.2 mm, 482.6 mm, 533.4 mm, 609.6 mm, 610 mm, 762 mm, 965.2 mm, 1219.2 mm

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