3M™ Aluminum Foil Tape 425 is a dead-soft aluminum foil backed tape with a special transparent synthetic acrylic adhesive, making this the best general purpose foil product available. This tape is ideal for masking, sealing, seaming, shielding, chemical stripping, harness wrapping, joining, electroplating, plastic protection, chemical milling, heat shielding, heat reflecting and paint stripping.
Conformable tape resists flame, moisture, weather, UV degradation and many chemicals, making it ideal for a variety of applications
Heat and light reflective tape protects, insulates and enhances lighting efficiency
Withstands a wide temperature range
Thermally conductive tape helps dissipate heat and improves heating and cooling efficiency
Transparent acrylic adhesive combined with the rugged, durable backing provides long service life both indoors and out
3M™ Aluminum Foil Tape 425 has excellent heat and light reflection to protect against high temperature and ultraviolet (UV) degradation. It's also an effective barrier against moisture, dust, flame, dirt and mild chemicals used in paint stripping and masking. The thermally conductive backing helps maximize efficiency by dissipating heat over a wider surface area. The synthetic acrylic adhesive provides superior temperature, U.V. and solvent resistance to produce a strong, lasting and reliable bond. It provides excellent age life and is ideal for harsh, long-term indoor and outdoor environments.
Aircraft paint stripping masking
Moisture barrier in “white goods” appliances
General purpose heat reflector and heat dissipator
Mechanically holds wires and cooling coils in “white goods” appliances
Repair tears on truck trailers and aircraft
Splicing of thin gauge foils
General purpose holding, patching, sealing applications – indoors and out
Designed to seal the cut edges of 3M™ Interam Mats and 3M™ Duct Wrap to complete total encapsulation
Aluminum is just one of the metal-backed tapes available from 3M. Our line of foil tapes resist failure from many common sources of degradation, including moisture, ultraviolet rays and many chemicals. As with all 3M products, our Aluminum Foil Tape 425 comes with exclusive 3M technical expertise and application advice.
3M™ Aluminum Foil Tape 425 meets U.L. 746C (File E 122798) and 723, Class "L" for low flammability rating (File R 7311). It can be certified to meet SAE-AMS-T-23397 and L-T-80C and meets F.A.R 25.853(a), O447. Temperature use range is from -65° to 300°F (-54° to 149°C.)
Adhesion to Steel oz/in (N/100 mm)
EMI RFI Shielding of Seams, Sealing Plate Edges Against Solvent Penetration, Maximize Cooling Efficiency of Refrigerators, Dryer Blower Housing Sealing, Shielding From Engine Heat, Refrigerator and Freezer Coil Attachment
Backing Thickness (metric)
Poor (> 0.020 ohm)
Transportation, Specialty Vehicle, Metalworking, Construction, Automotive, Military & Government, General Industrial, Appliance, Electronics, Aerospace