Pliable and Conductive Lead Tape
3Mâ„¢ Lead Foil Tape 421 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, as a radiation barrier or x-ray plate masking.
Application Ideas
- Electroplating
- Radiation barrier
- Moisture barrier
- Chemical milling
- X-ray plate masking

3M 26710, PPS Series 2.0 Spray Cup System UV Kit, Standard (22 fl oz,
650 mL), 200 Micron Filter, 7100128902
3M 77199, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 8C Coarse+, TR, 3 in x 1/4 in x NH, 7100109110
Insize MLP-GP280-U, GRINDER AND POLISHER, 6940561981704
Standard Abrasives 880513, Buff and Blend GP Wheel, 3 in x 1 Ply x 1/4 in A VFN, 7100094749
3M 22392, Roloc Disc 361F, 24 YF-weight, TR, 3 in, Die R300V, 7000045090
Dynabrade 96047 Motor Tune-Up Kit
3M 17184, Scotch-Brite Roloc EXL Unitized Wheel TR, 3 in x NH 2S FIN, 7100005209
3M 13622, Scotch-Brite EXL Deburring Wheel, XL-WL, 8A Medium, 12 in x 2 in x 5 in, 7000028481
3M 77198, Scotch Brite Roloc Deburr & Finish PRO Unitized Wheel, DP-UR, 8C Coarse+, TR, 2 in x 1/4 in x NH, 7100109131
3M 50730, PPS UV Standard Lid & Liner Kit, Standard (22 fl oz, 650
mL), 125 Micron Filters, 7100067511
Norton 66254414832 - 3" X 1/4" X 1/4" Vortex Rapid Blend Unified Wheel, 5am U2305, 40 Each
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 94905, Scotch-Brite EXL PRO Deburring Wheel, EP-WL, 9S Fine, 6 in x 1 in x 1 in, 7100023492
Standard Abrasives 880616, Buff and Blend GP Wheel, 4 in x 3 Ply x 1/4 in A MED, 7100095574
Dynabrade 11476 Dynabelter Abrasive Belt Tool, Heavy-Duty
Dynabrade 51629 .1 hp Straight-Line Pencil Grinder, Central Vacuum, 1/8" Collet
3M 33440, Cubitron II File Belt, 33440, 80+, 10 mm x 330 mm (3/8 in x 13 in), 7100033195, 10 belts per carton, 5 cartons per case 
