To be honest, I went one time and it was there. I went another time, it wasn't haha. If it IS there though, it'll be in the paint aisle (or close to it) but it won't be with the actual paints. It'll be with the finishes section, there's a whole section for bullseye brand products at my home depot. I think the finisher/varnish comes in the spraycan but there's also the paint-type can with the pry-open lid. Try looking there, one of the stores should have it. I've also experimented with some dupli-colour sandable primer. A couple of coats of that stuff is not as good as the shellac or resin, but it still adds a bit of rigidity to the overall structure. Give that a try if everything else fails.I'm not saying that they don't mix well per se, but that if you have the shellac on, putting resin directly over it will not let the resin dry entirely.. I'm no resin expert, but I think part of what allows the resin to feel dry is the ability to soak into another substance and therefore dilute its liquid content.. or something.. I'm completely guessing. Anyhow, if you were to shellac the outside for several layers AND the inside, it's still ok to resin and fiberglass. THIS IS THE ONLY CATCH: if you DO shellac a surface you plan on resining, make sure to RESIN WITH THE FIBERGLASS. Because the resin can soak into the fiberglass, it's the same as doing it normally (i.e. with no shellac). So, to make my rambling brief:shellac:resin + fiberglass = okayresin = will become tacky foreverfiberglass = well... I don't know why you'd do thatwithout shellac:resin + fiberglass = okayresin = okayHope that helps, and hope you can both find the product in your area should you choose to use it. I've had pretty good results so far.