I prefer to use silver or gold metallic plastisol and then foil rather than just foil adhesive.
A few benefits, when the print is being done you can actually see it.
When the foil washes off as it will eventually, you are left with gold / silver below, rather than just clearish glue.
Also without a perfect foil adhesion the end result is usually pretty good as the remainder is showing through gold
This of course doesn't work for specialty foils, but gold and silver I've been doing this for years with good results. I'd say it maybe doesn't end up quite as smooth and as "brilliant" as straight foil adhesive, but the pro's outweigh the cons in my opinion on making a product for better longevity.