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

Standard Abrasives 863110, A/O Unitized Wheel, 631, 2 in x 1/4 in x 1/4 in, 7000144629
3M 11414, Roloc Disc 361F, P120 XF-weight, TR, 1 in, Die R100N, 7000045104
3M 53034, 663FC, 3/4" X 90", 20u, Diamond Trizact Belt 7100205969
3M 09413, Scotch-Brite Contour Surface Paint and Varnish Remover 9413NA, 7000052005
3M 08107, Universal Adhesive Clear, 47.3 mL Cartridge, 7010294717, 6 per case
3M 03647, Scotch-Brite Edger Disc Pad, 7 in x .875 in, 7000133920
Standard Abrasives 713638, Cartridge RoII Mandrel, 3/32 in x 3/4 in x 1/8 in x 1 in x 2-3/4 in CM-2B, 7010294964 
