Has anyone considered this stuff for a guitar finish?

http://www.bigceramicstore.com/supplies/nonfiredcoatings/RubnBuff.htm

Was doing some surfing and came across this stuff. Does one think that it is feasible to use this over a grain filler and still hit it up with a few coats of clear after?

I duuno, it says it has a base of carnuba waxes. Clear may not stick too well to that

Being as its a wax, It would not hardern and seal the filler, and being as its a wax, I doubt any kind of clear finish will stick to it.

yeah, I guess. I'd like to raise a glass to crushed hopes!