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

3M™ Lead Foil Tape 420 Dark Silver, 1/4 x 36 yd 6.8 mil, 36 rolls per case Bulk

3M ID  70006390945    UPC#  00051138956783    Part Number  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 225F
  • 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
  • Automotive, Aerospace, HVAC, Appliance, Military, Government, Defense, Marine, Metal Finishing, Electronics, Recreational Vehicle, Construction, General Industrial
  • Masking, sealing, seaming, shielding, chemical stripping, harness wrapping, joining, vibration damping, electroplating, plastic protection, chemical milling, heat shielding, heat reflecting, paint stripping
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 36 Linear Yard‎
 Length (Metric)‎ 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 2308400‎ ,  Lockheed Martin LAC 24-8141‎
 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 0.25 Inch‎
 Width (Metric)‎ 6.35 mm‎

Documents