I am currently building a strat style guitar out of a kit. I am ordering paint and white laquer based primer, and nitrocellulose laquer finish. However, I'm not sure if oil based grain filler will work under this. The guitar body is alder, so I'm pretty sure I do need the grain filler. I just need to find out for certain if it will work before I do anything.
Well, you do NOT need grainfiller on alder. alder doesnt have open pores.