Super 77 Adhesive by 3M
This spray adhesive is just handy to have around. It is most commonly used for fixing car upholstery but has lot of uses around the shop and home.
In knife making, I've seen it used to spray on disc grinder plate so a permanent backing material can be applied to the disc like a leather or rubber backing material. Feathering adhesive is then used on front of this backing material so 9"x11" sheets of sandpaper can be used instead of expensive PSA disc's.