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425 - Aluminum Foil Tape


 3M

E-Mail this datasheet
FEATURES
  • Std Roll Length: 60.00 yards
  • Aluminum foil backing is long term proction
  • Heat reflective
  • Flame resistant
  • Acrylic adhesive is long aging
  • Water vapor transmission rate: 0.1g H2O/100 sq.in./24 hrs. (1.55 g/m2/.24 hrs.)
  • Approximate weight: 0.115 lbs./yd./in. width (4.77 gms./m/24 mm)
ADVANTAGES
  • Helps protect parts from water, dust or chemical damage
  • Helps protect parts from heat
  • Will not support combustion
  • Helps reduce need for replacing
APPLICATIONS
  • Aircraft paint stripping maskant
  • Moisture barrier in "white goods" appliances
  • General purpose heat reflector and heat dissipator
  • Mechanically hold 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
MARKETS SERVED
  • Aerospace
  • Appliances
  • Industrial
  • Electrical
  • Automotive
COLORS
  • Silver
GENERAL INFORMATION
425 is a 4.6 mil, aluminum foil tape. It is primarily used indoor or outdoor for many long term applications.

PRODUCT CONSTRUCTION
  Type
Mil Thickness
Backing Aluminum
2.80
Adhesive (unwind) Acrylic
1.80
Liner Type (inner) Film; 3.1 mils
Thickness (total)  
4.60

PRIMARY PHYSICAL PROPERTIES
  Unwind Side   Liner Side
Adhesion-to-Steel - 180° Peel 47.00 oz/in  
Tensile Strength 30.00 lbs/in  
Elongation Percent 8.00%  

Testing Info: Initial peel adhesion to stainless steel; ASTM D-3330; tensile strength and elongation at break: ASTM D-3759; backing and tape thickness; ASTM D-3652; water vapors; ASTM D-3833

SECONDARY PHYSICAL PROPERTIES
Water Resistant Yes
UV Resistant Yes
Chemical Resistant Yes

THERMAL / ELECTRICAL PROPERTIES
Minimum Application Temperature 32°F
Minimum Service Temperature -65°F
Maximum Short-Term Temperature 300°F
Flame Resistant Yes

 
  • 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.
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