I’m playing with polyurethane finishes on Baltic birch, and so far I am not able to get the same kind of coating that I see on my Proofgrade MMP.
I’ve tried satin “wipe on” polyurethane, and it seems to soak into the wood. Even 3 coats doesn’t produce the thin shell that I think I see on the Proofgrade. It does look nice, though… Just different.
I’m currently a couple of coats in with a spray-on satin poly, and it seems to go on thicker but I can already tell it’ll cost a fortune to use. The spray can feels half-empty after 2 coats on a 12" x 24" piece. (I read that all the spray finishes are thinned a lot to spray properly, so they are much less cost effective. Makes sense.)
I have not yet tried a brush-on satin poly finish. Should I give that a shot or is there something better?