3M metal backed tapes

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3M metal backed tapes

Introducing 3M™ Lead Foil Tape 420 – High-Conformability Conductive Shielding Tape

Q: What environments is it suited for?

It performs well in chemical exposure , high-temperature (up to 107°C), moisture , and UV-exposed environments.

3M™ Lead Foil Tape 420 is a high-performance, dark gray lead foil tape designed for precision applications in demanding environments. Coated with a unique green rubber adhesive, this pliable, malleable tape conforms effortlessly to complex surfaces, providing electrical and thermal conductivity, strong chemical and radiation resistance, and clean removal properties.

When paired with EKO-TECH’s custom converting services, this tape becomes a tailor-made solution for industries requiring intricate die-cutting, thermal or electrical shielding, or plating precision. Whether you’re facing challenges in radiation barriers, moisture protection, or electroplating masks, 3M™ Lead Foil Tape 420 delivers exceptional durability and flexibility.

Where to Use 3M™ Lead Foil Tape 420

Electroplating masking – conforms precisely to irregular surfaces for effective shielding
Radiation shielding – ideal for applications requiring X-ray or nuclear containment
Moisture and vapor barrier – forms a seal against water ingress in sensitive areas
Chemical milling masking – resists acid and base attack during etching operations
Electrical grounding & EMI shielding – supports conductive bonding on metal surfaces
Thermal conductivity solutions – supports heat dissipation in thermal assemblies
Temperature Range: -51°C to 107°C (-60°F to 225°F)

Precision Shielding, Unmatched Performance

Start Your Custom Solution with 3M™ Lead Foil Tape 420 Now!

Why Choose 3M™ Lead Foil Tape 420

Highly Conformable & Malleable – shapes precisely around tight corners or curves
Electrically and Thermally Conductive – supports grounding and heat flow applications
Radiation, Moisture & UV Resistant – withstands harsh environments without degradation
Clean Removal – leaves no adhesive residue on most metal or smooth surfaces
Versatile Use – excellent in industrial, aerospace, and electronics manufacturing
Die-Cut Ready – easily shaped into complex patterns for custom installations

3M™ Lead Foil Tape 420 stands out on the market for its unique balance of pliability, conductivity, and durability—making it a superior choice for precision shielding needs.

Converting Services by EKO-TECH – Precision Tailored for Your Process

As a certified 3M Select Converter, EKO-TECH offers the full spectrum of tape customization, helping you match the 3M™ Lead Foil Tape 420 to your exact needs. Our converting capabilities include:

Rewinding to individual lengths – optimize roll sizes for your line
Slitting to custom widths – from narrow strips to wide formats
Sheeting – flat precision sheets ready for lamination or application
Die-Cutting & Kiss Cutting – for intricate shapes and functional patterns
Cross-Wound Spooling – ideal for high-speed automated production

Whether you’re in prototyping or mass production, we help streamline the integration of 3M™ Lead Foil Tape 420 into your processes.

3M Select Converter Expertise – we know 3M materials inside out
Tailored Engineering Support – your application guides our design
Quick Turnaround & Local Delivery – get what you need, when you need it
Proven Reliability & Quality Control – ISO-certified operations and tight tolerances
Flexible Batch Sizes – from small-scale runs to large-volume production
Innovative Material Solutions – we turn adhesive tapes into functional components

Choosing EKO-TECH means choosing a partner who helps you transform world-class tapes like 3M™ Lead Foil Tape 420 into production-ready solutions.

Technical data:

Total thickness of tape without backing (metric units) 0.17 mm
Shelf life 18 months
Adhesive thickness on the back side (metric units) 0.05 mm
Backing thickness (metric units) 0.12 mm, 0.13 mm
Product colour Silver, Dark silver
Number of units per package 6.0, 9.0, 12.0, 18.0
Maximum operating temperature 107 °C
Brands 3M™
Backing material (carrier) Lead tape
Minimum operating temperature -51 °C

Industry Military and government, Aerospace, Transportation, Household appliances, Construction, General industry, Automotive, Electronics, Metalworking, Special vehicle
Specifications met ASTM D3652, ASTM D3759, ASTM D3833
Adhesive type Rubber
Elongation at break 12.0 %
Tensile strength (metric units) 35 N/100 mm, 350 N/100 mm
Total length (metric units) 32.9 m, 32.918 m, 33 m
Total width (metric units) 1.9 cm, 2.5 mm, 5.1 mm, 6.35 mm, 12.7 cm, 100 cm

FAQ

Can I order cross-wound spooled tape for automation?Monika Kluk2025-07-14T13:29:10+02:00

Can I order cross-wound spooled tape for automation?

Yes, cross-wound spooling is one of our key services—perfect for high-speed dispensing or robotic application.

Does EKO-TECH offer low-volume prototyping?Monika Kluk2025-07-14T13:29:00+02:00

Does EKO-TECH offer low-volume prototyping?

Yes, we support both small batch prototyping and full production runs using our flexible converting setup.

What environments is it suited for?Monika Kluk2025-07-14T13:28:51+02:00

What environments is it suited for?

It performs well in chemical exposure, high-temperature (up to 107°C), moisture, and UV-exposed environments.

Can it be die-cut into small complex shapes?Monika Kluk2025-07-14T13:28:41+02:00

Can it be die-cut into small complex shapes?

Absolutely. The malleability of 3M™ Lead Foil Tape 420 makes it ideal for precision die-cutting and kiss cutting

Is 3M™ Lead Foil Tape 420 safe to use in radiation shielding?Monika Kluk2025-07-14T13:28:32+02:00

Is 3M™ Lead Foil Tape 420 safe to use in radiation shielding?

Yes, the lead foil backing offers reliable X-ray and nuclear shielding. Always follow proper safety and handling protocols.

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Let’s Shape the Perfect Solution Together

Take your project to the next level with 3M™ Lead Foil Tape 420 – expertly converted by EKO-TECH. Whether you need intricate die-cuts, custom widths, or automation-ready spools, we’re here to help. Contact us today for a quote or sample! Let’s start engineering performance.