Bests & Worsts Reviews from Amazon

An 8 oz bottle will do about four 500 piece 24x18 puzzles with 3 coats on the front and 1 coat on the back. We do our puzzles on a piece of laminate countertop (a sink cut out) and I've found I can do the glue up right on that and dried puzzle glue peels off, easy as pie. That is convenient because you don't have to worry; you can just brush the edges to seal them too. I apply with a 3" non-cheapo paintbrush. (Nothing too expensive, but if you use a 99 cent chip brush you'll end up with bristles embedded in your work.) Clean up your brush with water before things dry. I do one coat on the front by pouring a tablespoon or so on a section at a time and brushing it out. It will pool in the joints, but that's good. Don't worry that it's very white and opaque, it dries clear. After the first coat is on reasonably thick, let it dry several hours, then flip the puzzle over, brush a single coat on the back, and let it dry for a few hours. Then flip back over to the front. At that point, you can do coats about once an hour to build whatever thickness you like. I do one more thick coat, sand smooth with 0000 steel wool to get rid of any brush marks and wipe it clean with a very slightly damp cloth. Then one last coat, very thin with a foam brush, and if there's any brush marks after it dries, a bit more 0000 steel wool. At this point the glued puzzle is quite study but with a bit of flex and a nice glossy surface (about as glossy as a standard puzzle's finish.)