I am not sure if this goes here, but oh well,
So I finally got around to buying some MDF. I bought a sheet of 1/4 from Home depot and dug up a ton of 3/4 from my friend's dumpster. Well, first off, is a dust mask sufficiant protection from the dust? secondly, I know both blind squirrel props and volpin props mentioned sealing mdf to make it stronger and to hold paint better, but what should i seal it with?