3M
431

Aluminum Foil Tape

431 is a 3.1 mil, aluminum foil tape. It is primarily used for many permanent sealing, holding, splicing or masking applications requiring the protection offered by a foil backing.

Backing/Carrier Aluminum
Adhesive Acrylic
Thickness 3.1 Mils
Tensile 19.00 lbs/in
Elongation 5.00%
Adhesive Activation Pressure
Adhesion (unwind) 41 oz/in
Min. Application Temp 32° F
Min. Service Temp -65° F
Max Short-Term Temp 300° F
Max Long-Term Temp

Product Features

  • Aluminum foil backing gives protection
  • Heat reflective
  • Flame resistant
  • Acrylic adhesive is long aging
  • Tan draft paper with silicone release
  • Water vapor transmission rate: 0.1g H2O/100 sq.in./24 hrs. (1.55 g/m2/.24 hrs.)
  • Weight: 0.0096 lbs./yd./in.width (.0048 kg/m/24 mm)
  • Helps protect parts from water, dust or chemical damage
  • Helps protect parts from heat
  • Will not support combustion
  • Helps reduce replacement need

Adhesive Tape Applications

  • Seal and patch tears in truck trailers, as well as other outdoor equipment
  • Reflect heat away from sensitive areas
  • Thermal heat conduction
  • general purpose holding, patching, sealing applications indoors or out
  • Splicing of thin gauge foils
  • Good maskant in electroplating of aluminum because it will not contaminate the bath
  • Decorative

Adhesive Tape Colors

  • Silver

Converting Services

Precision Cutting, Die Cutting, Slitting, Printing, Laminating and Coating, Spooling and Finishing, Consulting & Process Audit, Prototyping, Inventory Management

At Budnick, we specialize in custom converting these materials into labor saving, user-friendly parts.

Data provided by Budnick Converting, Inc.

The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.

It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.

Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.

Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.