Can you resand rough spots after applying tung oil?

You could resand, but you’ll kind of goof up your coloring in all likelihood. The sanded spot will probably always be a slightly different color. Couldn’t be that noticeable though. You could just leave it. Once I put a finish on, I rarely turn back. You’re playing with fire when you do.

-- The Wood Is Your Oyster

Or sand the entire surface a 1/64. I don’t know minwax Tung oil only pure, if you wait for it to set then as you remove the defect ensure you sand the whole surface you’ll end up with a color match closer than the alternative.

-- I meant to do that!

Ugh. :) We’re talking 3’x6’ and I already don’t like sanding…

Part of me wonders if I can get enough layers of finish going to fill the defects. Tung oil, however, soaks in more than it sits on the surface, correct?

Who does?

Tung oil does both, as previously mentioned it depends on the temp humidity and species, 70° and dry air will help absorption but only so much. The issue would be in overlap, tends to look like water stain marks, hard maple takes on an orangey yellow sort of look, (never worked with soft). Again if I didn’t wet the surface 1st to sand the raised grain I’d sand between the 1st 2 coats then nylon pad between further coats, unless there was a whoops that needed attention.

-- I meant to do that!