Skip to Primary Navigation Skip to Site Navigation Skip to Main Content All 3M.com Site Map

3M™ Lead Foil Tape 420

3M Product Number  420     
Scotch(r) Masking Tape 420
Scotch(r) Masking Tape 420
3M™ Lead Foil Tape 420 Dark Silver, lead foil backing with a green rubber adhesive and a clear, easy-release film liner.
  • Dark silver, lead foil 4.7 mil backing, rubber adhesive, linered, temperature range -60F to 225 degrees F
  • 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
Need Help?

Questions? We can help

Contact Us

 

Overview

3M™ Lead Foil Tape 420, linered tape 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. This linered tape can be easily die-cut into special sizes or shapes.

Specifications

 Adhesion to Steel oz/in (N/100 mm)‎ 45 (49)‎
 Adhesive Type‎ Rubber‎
 Backing Material‎ Lead foil‎
 Backing Thickness‎ 4.7 mil‎
 Backing Thickness (metric)‎ 0.12 mm‎
 Brand‎ 3M‎
 Color‎ Dark Silver‎
 Elongation‎ 12 Percent‎
 Industries‎ Transportation‎ ,  Specialty Vehicle‎ ,  Metalworking‎ ,  Construction‎ ,  Automotive‎ ,  Military & Government‎ ,  General Industrial‎ ,  Appliance‎ ,  Electronics‎ ,  Aerospace‎
 Length‎ 35.98 Linear Yard‎ ,  36.08 Linear Yard‎ ,  36 Linear Yard‎ ,  35.97 Linear Yard‎
 Length (Metric)‎ 32.9 m‎ ,  33 m‎ ,  32.91 m‎
 Liner Type‎ Easy Release Film‎
 Maximum Operating Temperature (Celsius)‎ 107 Degree Celsius‎
 Maximum Operating Temperature (Fahrenheit)‎ 225 Degree Fahrenheit‎
 Meets Specifications‎ Lockheed Martin LAC 24-8138‎ ,  Lockheed Martin LAC 24-8137‎ ,  Lockheed Martin LAC 24-8136‎ ,  Lockheed Martin LAC 24-8135‎ ,  Lockheed Martin LAC 24-8139‎ ,  Lockheed Martin LAC 24-8119‎ ,  Lockheed Martin LAC 24-8130‎ ,  Lockheed Martin LAC 24-8118‎ ,  Lockheed Martin LAC 24-8134‎ ,  Lockheed Martin LAC 24-8133‎ ,  Lockheed Martin LAC 24-8150‎ ,  Lockheed Martin LAC 24-8132‎ ,  Lockheed Martin LAC 24-8131‎ ,  Lockheed Martin LAC 24-8125‎ ,  Lockheed Martin LAC 24-8124‎ ,  Lockheed Martin LAC 24-8127‎ ,  Lockheed Martin LAC 24-8126‎ ,  Lockheed Martin LAC 24-8147‎ ,  Lockheed Martin LAC 24-8129‎ ,  Lockheed Martin LAC 24-8146‎ ,  Lockheed Martin LAC 24-8128‎ ,  Lockheed Martin LAC 24-8149‎ ,  Lockheed Martin LAC 24-8148‎ ,  Lockheed Martin LAC 24-8143‎ ,  Lockheed Martin LAC 24-8142‎ ,  Lockheed Martin LAC 24-8145‎ ,  Lockheed Martin LAC 24-8144‎ ,  Lockheed Martin LAC 24-8121‎ ,  Lockheed Martin LAC 24-8120‎ ,  Lockheed Martin LAC 24-8141‎ ,  Lockheed Martin LAC 24-8123‎ ,  Lockheed Martin LAC 24-8122‎ ,  Lockheed Martin LAC 24-8140‎ ,  Lockheed Martin 2308400‎
 Operating Temperature Range (Celsius)‎ -51 to 107 Degree Celsius‎
 Operating Temperature Range (Fahrenheit)‎ -60 to 225 Degree Fahrenheit‎
 Product Form‎ Roll‎
 Shelf Life in Months (from date of manufacture)‎ 18‎
 Tensile Strength‎ 20 lb/in‎
 Tensile Strength (metric)‎ 350 N/100mm‎
 Total Thickness‎ 6.8 mil‎
 Width‎ 6.62 Inch‎ ,  0.75 Inch‎ ,  5 Inch‎ ,  6 Inch‎ ,  2.87 Inch‎ ,  2.5 Inch‎ ,  5.25 Inch‎ ,  3.75 Inch‎ ,  0.62 Inch‎ ,  3.93 Inch‎ ,  4 Inch‎ ,  5.5 Inch‎ ,  12 Inch‎ ,  0.37 Inch‎ ,  1.25 Inch‎ ,  0.74 Inch‎ ,  18.97 Inch‎ ,  0.35 Inch‎ ,  19 Inch‎ ,  1 Inch‎ ,  23 Inch‎ ,  0.5 Inch‎ ,  3 Inch‎ ,  15 Inch‎ ,  0.25 Inch‎ ,  1.5 Inch‎ ,  16 Inch‎ ,  18 Inch‎ ,  2 Inch‎
 Width (Metric)‎ 76.2 mm‎ ,  95.25 mm‎ ,  73.02 mm‎ ,  19.05 mm‎ ,  100 mm‎ ,  168.27 mm‎ ,  304.8 mm‎ ,  457.2 mm‎ ,  25.4 mm‎ ,  38.1 mm‎ ,  63.5 mm‎ ,  19 mm‎ ,  6.35 mm‎ ,  482.6 mm‎ ,  31.75 mm‎ ,  12.7 mm‎ ,  406.4 mm‎ ,  152.4 mm‎ ,  9 mm‎ ,  127 mm‎ ,  482 mm‎ ,  50.8 mm‎ ,  139.7 mm‎ ,  381 mm‎ ,  101.6 mm‎ ,  133.35 mm‎ ,  15.8 mm‎ ,  584.2 mm‎ ,  9.52 mm‎

Documents