Pliable and Conductive Lead Tape
3M™ 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 29611, 641WY 1/4" X 24", 100 Mesh Diamond Cloth Belt, 7010534832
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M™ 72010, Replacement Filter Kit 523-01-29, 7000056891, 1 EA/Case
Dynabrade 55501 .1hp Pencil Grinder, Twin Turbine, 100,000 RPM, Nickel-Plated Aluminum Housing, 3mm Collet
Dynabrade 53533 Cone or Plug Grinder (Triple Extension)
Dynabrade 51708 .1 hp Straight-Line Pencil Grinder, 35,000 RPM, 3/32" Collet
3M 16609, Accuspray Atomizing Head, Red, 2.0 mm, 7000045543 (4 Nozzles/Kit) (6 Kits/Case)
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
Dynabrade 93347 Carbide Burr, 1/8" Dia., SL-42 D/C Burr, Taper-Radiused End, 1/2" Flute L, 1/8" Shank
Dynabrade 51812 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 3/32" Collet
3M 19677, Scotch-Seal Industrial Sealant 800, Reddish Brown, 1 Gallon Drum, 7000000793, 4/Case
Standard Abrasives 708751, PSA A/O Disc, 12 in x NH, 60, 7010370081
Air Turbine Tools 310RSV - 6mm Router Hand Tool Series, 30,000RPM, 33431
3M 94714, Cubitron ll Cloth Belt 947A, 120+ X-weight, 3/4 in x 20-1/2 in, Fabri-lok, Single-flex, 7010307700, 200 per case
3M 22970, Disc Holder Adapter 9, 5/8-11 External 3/8-24 Internal, 7000046093
3M™ 72787, Calibration Kit 529-04-48, Large, 7000052154, 1 EA/Case
3M 11412, Roloc Disc 361F, 36 YF-weight, TR, 1 in, Die R100N, 7000045092
3M 30202, Disposable Plastic Wheel Maskers, 12 in - 15 in, 125 per box, 7000125074
Dynabrade 51810 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 1000,000 RPM, 1/8" Collet
3M 55037, Cubitron II Cloth Belt 984F, 60+ YF-weight, 6 in x 48 in, Film-lok, Single-flex, 7010308910, 20 per case
Dynabrade 51703 .1 hp Straight-Line Pencil Grinder, Rear Exhaust, 50,000 RPM, 1/8" Collet
3M 20227, Scotch-Seal Metal Sealant 2084, Silver, 5 oz Tube, 7000046343, 36/Case
Standard Abrasives 541151, Quick Change TS P.A.R.T. #21 Disc Mandrel, 5/8 in TA4 (PILOT), 7000121723
3M 85309, Aluminum Foil Tape 425, Silver, 3/4 in x 60 yd, 4.6 mil, 7100053743
Dynabrade 14000 Dynafile Abrasive Belt Tool
3M 81729, Disc Pad Face Plate Ribbed, 9 in Hard Black, 7000148244
3M 45120, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/4 in, 7010328349 
