From the literatu
3M 3748 Hot Melt Overview
The 3M 3748 is a unique hot melt adhesive often used in electronic assembly because it provides excellent thermal shock resistance and is non-corrosive to copper. The 3M 3748 also provides an excellent bond to polyolefins. The 3M 3748 also comes in a self-extinguishing version that meets UL 1410 requirements, 3M 3748VO.
Good stuff. And if you want to crack it off, a few minutes in the freezer makes it very easy to handle.
https://multimedia.3m.com/mws/media/...data-sheet.pdf
Peter Wieck
Melrose Park, PA