[url][/url] Now I know pine boards are not a hard wood, but here is what I have I have 12 inch wide pine board floors. I have burned with with a torch and laid them down. I am looking for a way to seal them. Right now there is two coats of polyurethane but that isn’t enough trying to find an epoxy or something to seal it. Let me know what you all think.

I would not use epoxy for a floor finish. I have seen it used and it does not wear well. It may be used to seal wood, but it needs to b e protected with a hard film like poly-urethane. Use the recommended spread rate. If you already have applied two coats, then I would wait a couple of days to a week before applying the final coat so the first coats can start to harden, the final coat will still adhere well after a light sanding and the thick film well be cured sooner.