3M™ Lead Foil Tape 420

3M™ Lead Foil Tape 420: Reliable, Conductive, and Versatile

The 3M™ Lead Foil Tape 420 is an electrically and thermally conductive tape designed for demanding industrial applications. This dark gray tape features a lead foil backing coated with a distinct green rubber adhesive, ensuring a strong initial bond and long-lasting adhesion to a variety of surfaces, including most metals. Its easy-release liner allows for precision die-cutting, making it adaptable to various assembly and manufacturing needs.

3M™ Lead Foil Tape 420 is your go-to solution for applications requiring a reliable, conductive, and versatile tape that stands up to the most challenging environments. Its unique combination of properties makes it ideal for a broad spectrum of industrial applications, from aerospace to electronics manufacturing.

Key Benefits of 3M™ Lead Foil Tape 420:

Exceptional Conformability: The tape’s pliable lead foil backing is highly conformable, allowing it to be molded into complex shapes or intricate patterns. This flexibility ensures precise application in areas that are hard to reach or require detailed masking.
Resistant to Harsh Conditions: Engineered to withstand flame, moisture, weather, UV exposure, and many chemicals, this tape is ideal for use in environments where durability is critical. It also provides excellent resistance against radiation, making it a reliable choice for protective applications.
Effective Thermal and Electrical Conductivity: The metal-to-metal contact of the lead foil backing promotes continuous electrical conductivity and minimizes build-up at the adhesive interface. This makes the tape particularly useful for electroplating and anodizing processes.
Versatile Temperature Performance: Designed to perform across a wide range of temperatures, the 3M™ Lead Foil Tape 420 maintains its adhesion and integrity even under extreme conditions.

Ideal Applications Include:

Masking in electroplating and anodizing processes
Serving as a radiation barrier in sensitive environments
Providing a moisture-resistant seal
Protecting surfaces during chemical milling

Technical data:

Type of adhesive: Rubber
Back adhesive thickness (metric): 0.05 mm, 0.06 mm, 0.12 mm
Backing material: Lead foil
Backing (carrier) thickness (metric): 0.12 mm, 0.13 mm
Brands: 3M™
Elongation at break: 12.0 %
Maximum operating temperature (Celsius): 107 ℃
Minimum operating temperature (Celsius): -51 ℃
Product colour: Dark silver, Silver
Shelf life: 18 months
Smallest unit of sale: Roll
Tensile strength (metric): 35 N/100 mm,
Total strip thickness without spacer (metric): 0.17 mm

Properties:

Total length (metric): 32.9 m, 32.91 m, 32.918 m
Total width (metric): 1,9 cm, 2,5 cm, 5,1 cm, 12,7 mm, 15,875 mm, 25,4 mm, 31,75 mm, 38,1 mm, 58,4 cm, 127 mm, 152,4 mm, 304,8 mm, 457,2 mm, 482 mm

3M™ Lead Foil Tape 420