I have 2 pieces of wood butted tightly together and I can't seem to remove the visibility of that line. I used bondo and primer but after I sand it down so that both pieces are flat and smooth, that line shows it's ugly head. I'm more worried that it will come through after I paint it. Not really sure what to do about it. If I rub my finger over it, I can still kinda feel it so not sure if this will be a problem when I go to paint or not? It's like I need something that's thinner that could penetrate into the seam better but Primer doesn't seem to be doing it.
The paint won't be anything fancy, I just plan to spray on some premium exterior water based paint but since my arcade cab will be white, I suspect it'll show.