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United States

3M™ Lead Foil Tape 421 Dark Silver, 2 in x 36 yd, Bulk

UPC#: 0-51138-95309-6 3M ID: 70006387271
Price: $1,001.04
Case/ 6 Rolls
Features and Benefits:
  • Good conformability, electrically and thermally conductive, strong acid and base resistance, electroplating, radiation barrier, x-ray plate masking, weighting and balancing, die-cuttable
  • Resists flame, resists moisture, resists weather, resists UV degradation, chemical resistant tape, thermally conductive tape for heating and cooling efficiency, heat reflective tape, light reflective tape, conformable tape
  • Markets: Automotive, Aerospace, HVAC, Appliance, Military, Government, Defense, Marine, Metal Finishing, Electronics, Recreational Vehicle, Construction, General Industrial
  • Applications: Masking, sealing, seaming, shielding, chemical stripping, harness wrapping, joining, vibration damping, electroplating, plastic protection, chemical milling, heat shielding, heat reflecting, paint stripping

3M™ Lead Foil Tape 421 Dark Silver, 6.3 mil (0.16 mm) lead foil backing with a green rubber adhesive.

3M™ Lead Foil Tape 421, used as a maskant in electroplating and as a moisture and radiation barrier in certain applications. Lead foil backing provides good conformability having electrically and thermally conductive properties.

Product Details
Adhesion To Steel Oz/in (n/100 mm)
31 (34)
Adhesive Type
Backing Material
Lead foil
Backing Thickness
4 Milli-inch (mil)
Backing Thickness (metric)
0.1 Millimetre
Dark Silver
14 Percent
36 Linear Yard
Length (metric)
32.918 Linear Metre
Liner Type
Easy Release Film
Peak Damping Temp
-65?? to 225?? F (-54?? to 066?? C)
Product Form
Shelf Life
18 Month
Tensile Strength Lb/in (n/100 mm)
15 (263)
6.3 Milli-inch (mil)
2 Inch
Width (metric)
50.8 Millimetre