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Pumice Stone
http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=34048		 Page 1 of 1
Author:  segovia [ Fri Oct 28, 2011 10:29 am ]
Post subject:  Pumice Stone
Anyone using pumice stone as a pore filler ?

Good - Bad ??

John
Author:  WaddyThomson [ Fri Oct 28, 2011 10:33 am ]
Post subject:  Re: Pumice Stone
It's labor intensive, but it works. It does tend to sink back a little over time.
Author:  SteveCourtright [ Fri Oct 28, 2011 10:52 am ]
Post subject:  Re: Pumice Stone
+1

WaddyThomson wrote:
It's labor intensive, but it works.
Author:  Chris Pile [ Fri Oct 28, 2011 11:53 am ]
Post subject:  Re: Pumice Stone
Geez... used to use it buff out finishes, but never considered using it for filler.
Author:  jfmckenna [ Fri Oct 28, 2011 12:19 pm ]
Post subject:  Re: Pumice Stone
I did for the first time on my recent Flamenco build. Only the rose wood head plate so it wasn't too intensive for me :) But yes it worked quite well, not sure I'd want to do a whole guitar. I think I am going to try egg whites next time.
Author:  Quine [ Fri Oct 28, 2011 12:38 pm ]
Post subject:  Re: Pumice Stone
I used to use it. Never liked it.
Now I use drywall compound mixed with dye. Much easier
Author:  Eric Reid [ Fri Oct 28, 2011 4:42 pm ]
Post subject:  Re: Pumice Stone
It's all I ever use. I love it.
Author:  DennisK [ Fri Oct 28, 2011 5:21 pm ]
Post subject:  Re: Pumice Stone
I love it. Time taken is quite variable so far, but I think it will be not too bad with a bit more experience. I tried the LMI micro bead filler, but it was at least as much time and effort as pumice to mash it all in and carefully scrape back to wood twice, and even then I ended up losing a little thickness and opening some new pores by the time I got the splotchy color mostly cleared off the wood surface. Pumice gets you a perfectly color matched filler, and it can always be re-softened and moved around the surface to level it out without having to carefully scrape/sand to bare wood.

The pumice leveling operation is also dual purpose. Since pumice is an abrasive, you can also skip the finer sandpaper grits. Or do what I did, and leave it at a scraper finish. The pumice polished it out quite beautifully. The neck I sand to 1500 though, as it's easier to grind up slurry from open areas and push it into tight spots, which means the tight spots don't get the abrasive treatment.
Author:  alan stassforth [ Fri Oct 28, 2011 8:52 pm ]
Post subject:  Re: Pumice Stone
Chris Pile wrote:
Geez... used to use it buff out finishes, but never considered using it for filler.

I'm just about to use pumice.
My understanding is that it doesn't actually fill the pores,
but uses some of the spit coat finishes to do that.
Oh, I might add that I think pumice is used solely in french polishing,
cuz da alcohol melts the finish in there.
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