3M™ Lead Foil Tape 421 is backed with a rubber adhesive, offering excellent conformability in a variety of application conditions, indoors and out. Good thermal properties and will perform over a wide variety of temperature conditions (-60° to 225°F or -54° to 106°C). It has been used at higher temperatures for shorter duration. It is electrically and thermally conductive.
Applications: electroplating, radiation barrier, moisture barrier, chemical milling, x-ray plate masking, maskant during paint stripping, add weight (balance) to equipment parts (golf clubs, tennis rackets, etc)
Filename | Action |
3m-420-421-data-sheet.pdf | [ Download File ] |
Tech Specs | |
Backing | Lead foil |
Adhesive Type | Rubber (green) |
Total Thickness | 6.3 mils |
Adhesion to Steel | 45 oz./in. width (34 N/100 mm) |
Tensile Strength | 15 lbs./in. width (263 N/100 mm) |
Elongation at Break | 14% |
Operating Temperature | -60° to 225°F (-51° to 107°C) |
Colors | Dark silver |