421

3M / 421 (7100103502)

3M™ Lead Foil Tape 421, Dark Silver, 1/4 in x 36 yd, 6.3 mil, 36 rolls per case
3M™ Lead Foil Tape 421 Is an electrically and thermally conductive tape. This highly conformable tape resists flame, moisture, weather, UV degradation, chemicals and radiation. The malleable tape can be shaped into complex or detailed patterns or die-cut into specific shapes to meet assembly and manufacturing process needs.

Price Per Roll

36-72
$44.46*
108-144
$43.13*
180-216
$41.28*
252-288
$39.58*
324+
$38.02*
Boeing Material Specification Tape (BMS & BAC)
Commercial Item Description Tape (CID A-A-XXXX)
Military Specifications (MIL-I and MIL-T)

3M Product Number: 421

3M ID Number: 7100103502    3M UPC Number: 51138953065    3M Legacy Product Number: 70006387248

Additional Product Information:

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