I'm working on a knotty alder coffee table for this cowboy I know. I purchased said hardener to apply to the table top to help it be a bit more durable. I've already assembled the legs and apron so applying and sanding to that would pose a bit of a challenge so my original plan was to just use it on the top where drinks and whatnot goes. Is there going to be a huge difference from the hardened parts to the non hardened? Also will using this product heavily effect the outcome of the stain? Has anyone else used wood this soft for a table? What do you use to keep it from being dented and scratched all to hell?