3M 420 (4-Inch-Roll)
LEAD FOIL TAPE (36YD) (4-Inch-Roll)
AERO P/N: 116059
Total Available Stock: 0
UK
USA
Available On Request
Available On Request
Minimum Order Quantity: 18
$678.66 excl VAT
Introducing 3M Lead Foil Tape 420, an electrically and thermally conductive foil tape for shielding and grounding applications. Supplied in a 4 inch (101 mm) width with 0.17 mm thickness, it provides effective EMI shielding, heat spreading, and grounding performance in aerospace assemblies.
Product Features
OEM
-
OEM Part No.
-
Colour
-
Shelf Life in Months
18
Shelf Life in Days
540
UN No
-
Class
-
PG
-
ECCN
EAR99
Country of Origin
United States
Commodity Code
7804110000
Product Type
Tapes
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Information
Additional Product Information
Overview
3M Lead Foil Tape 420 is a specialised conductive tape featuring a lead foil backing combined with a rubber-based adhesive. Designed for demanding aerospace applications, it offers excellent conformability, conductivity, and thermal performance. Aircraft engineers and MRO teams use this tape for EMI/RFI shielding, grounding, static discharge control, heat spreading, and mass balancing applications across avionics, structures, and systems.
Key Technical Specs for 3M Lead Foil Tape 420
- Type: Conductive lead foil tape with rubber-based adhesive
- Thickness: Approx. 0.17 mm (0.0067 in)
- Color: Metallic lead foil
- Viscosity / Consistency: N/A (pressure-sensitive adhesive)
- Cure / Working Time: Instant adhesion, no cure required
- Tensile / Peel Strength: Designed for conformability and secure bonding
- Shore Hardness: N/A
- Service Temp: -51°C to +107°C / -60°F to +225°F
- Typical Uses: EMI/RFI shielding, grounding, static discharge paths, heat dissipation, mass addition
- Shelf Life: Typically 12 months when stored properly
Approvals & Specifications
- FED-STD: HH-T-0029 (Amendment 2)
Typical Aircraft MRO / AOG Applications
- Creating low-resistance grounding paths on aircraft structures
- EMI/RFI shielding in avionics bays
- Static discharge control on metallic assemblies
- Localized heat spreading or mass balancing during repairs
Compatibility & Safety Notes
- Compatible with metallic aircraft structures
- Highly conformable for complex geometries
- Use gloves when handling lead-based materials
Packaging & Procurement
- Supplied in roll form for precision application
- Easily cut and shaped for localized repairs
- Commonly stocked in avionics and structures MRO inventory
Why 3M Lead Foil Tape 420 is Chosen for AOG / MRO
- Conductive performance for grounding and shielding
- Immediate usability with no cure time
- Highly conformable for tight or irregular surfaces
- Trusted solution for avionics and systems engineers
Practical Suggestions for Your Team (AOG Mindset)
- Keep rolls available in avionics and structures AOG kits
- Train teams on proper grounding and overlap techniques
- Use pre-cut strips for rapid EMI or grounding fixes
Manufacture / Aviation Spec Codes
- Manufacturer: 3M
- Product ID: 3M Lead Foil Tape 420
- FED-STD: HH-T-0029
Alternative Names & Descriptions
- 3M 420 Lead Foil Tape
- 3M Conductive Lead Tape
- 3M EMI Shielding Foil Tape
- Aircraft Grounding Lead Tape
- 3M420 Lead
Restrictions
Restrictions
Restricted
Dry Ice
No
Precursor Licence
Export Licence
FEDEX Restriction
Supplier Disruption
no
Recommended Alternatives
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Shipping Information
- Orders over £100 online are eligible for FREE UK Mainland delivery.
- Collection for orders is available for all customers. At Checkout, please select 'Ex-Works/Collection'.
- European Delivery is available for selected countries. Shipping costs will be calculated according to the weight of the products.
- Refrigerated shipping required for shipments going by sea or exceeding 7 days transit time.
- For additional information, please see our shipping page.