3M™ Lead Foil Tape 420

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Conformable tape resists flame, moisture, weather, UV degradation, and many chemicals used in electroplating and anodizing processes

The rubber-based adhesive bonds well to a variety of surfaces, including most metals

Performs over a wide variety of temperatures

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Details

Highlights
  • Conformable tape resists flame, moisture, weather, UV degradation, and many chemicals used in electroplating and anodizing processes
  • The rubber-based adhesive bonds well to a variety of surfaces, including most metals
  • Performs over a wide variety of temperatures
  • Liner allows tape to be die-cut into specific shapes for assembly and manufacturing processes

3M™ Lead Foil Tape 420 is an electrically and thermally conductive tape. This highly conformable tape resists flame, moisture, weather, UV degradation, chemicals and radiation. Mated with an easy-release film liner, this malleable tape can be shaped into complex or detailed patterns or die-cut into specific shapes to meet assembly and manufacturing process needs.

3M™ Lead Foil Tape 420
Pliable and Conductive Lead Tape
3M™ Lead Foil Tape 420 (PDF, 78.14 Kb) is a dark gray, lead foil backed tape coated with a distinct green rubber adhesive that offers good initial grab and a long-lasting bond that removes cleanly from most surfaces. It is an extremely conformable and pliable tape that can be formed into detailed and intricate shapes and patterns. The lead foil backing can be burnished to fully cover the adhesive and allow full contact of the lead foil to the metal base. This metal to metal contact results in a continuation of the electrical path, reducing build-up at the adhesive interface. This lead foil tape is formulated to be electrically and thermally conductive and carries a strong acid and base resistance, making it ideal for electroplating or as a radiation barrier. 

Application Ideas
  • Masking applications in electroplating
  • Radiation barrier
  • Moisture barrier
  • Chemical milling

Typical properties

Adhesive Type

Rubber

Back Side Adhesive Thickness (Imperial)

2.1 mil

Back Side Adhesive Thickness (Metric)

0.05 mm, 0.06 mm, 0.12 mm

Backing (Carrier) Material

Lead Foil

Backing (Carrier) Thickness (Imperial)

4.7 mil, 5 mil

Backing (Carrier) Thickness (Metric)

0.12 mm, 0.13 mm

Brands

3M™

Elongation at Break

12.0 %

Industries

Military & Government, Aerospace, Transportation, Appliance, Construction, General Industrial, Automotive, Electronics, Metalworking, Specialty Vehicle

Maximum Operating Temperature (Celsius)

107 ℃

Maximum Operating Temperature (Fahrenheit)

225 ℉

Minimum Operating Temperature (Celsius)

-51 ℃

Minimum Operating Temperature (Fahrenheit)

-60 ℉

Product Color

Dark Silver, Silver

Shelf Life

18 Month

Smallest Saleable Unit

Roll

Specifications Met

ASTM D3652, ASTM D3759, ASTM D3833

Tensile Strength (Imperial)

20.0 lb/in

Tensile Strength (Metric)

35 N/100mm, 350 N/100mm

Total Tape Thickness without Liner (Imperial)

6.8 mil

Total Tape Thickness without Liner (Metric)

0.17 mm

Units per Case

1.0, 3.0, 6.0, 9.0, 12.0, 18.0, 36.0

Overall Length (Imperial)

35.979 yd, 36 yd, 107.939 yd

Overall Length (Metric)

32.9 m, 32.91 m, 32.918 m

Overall Width (Imperial)

0.25 in, 0.5 in, 0.625 in, 0.8 in, 1 in, 1.25 in, 1.5 in, 2 in, 5 in, 6 in, 12 in, 18 in, 19 in, 23 in

Overall Width (Metric)

1.9 mm, 2.5 cm, 5.1 cm, 6.35 mm, 12.7 mm, 15.875 mm, 25.4 mm, 31.75 mm, 38.1 mm, 58.4 mm, 127 mm, 152.4 mm, 304.8 cm, 457.2 cm, 482 mm

Resources

Safety Data Sheets

Document Number: MSDS_1130954_US_EN

(PDF)

Reviews

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Similar products

Backing (Carrier) Thickness (Imperial) 4.7 mil, 5 mil
Overall Width (Metric) 1.9 mm, 2.5 cm, 5.1 cm, 6.35 mm, 12.7 mm, 15.875 mm, 25.4 mm, 31.75 mm, 38.1 mm, 58.4 mm, 127 mm, 152.4 mm, 304.8 cm, 457.2 cm, 482 mm
Overall Width (Imperial) 0.25 in, 0.5 in, 0.625 in, 0.8 in, 1 in, 1.25 in, 1.5 in, 2 in, 5 in, 6 in, 12 in, 18 in, 19 in, 23 in
Backing (Carrier) Thickness (Metric) 0.12 mm, 0.13 mm
Adhesive Type Rubber
For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.