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How Should I fill burl
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Author:  WindyCityBluesBox [ Mon Jun 20, 2011 5:18 pm ]
Post subject:  How Should I fill burl
The title pretty much says it all. I am making a guitar with a burl veneer over the face. Is there any special products that I should be aware about for filling burl, or will the regular products work?
Author:  cphanna [ Mon Jun 20, 2011 5:38 pm ]
Post subject:  Re: How Should I fill burl
In my personal experience, all regular products will work. Some will work more to your personal liking than others. So, if you have some chipped or cracked or otherwise expendable burl scraps, laminate them down to a substrate and experiment with various methods. I like wood pore filler, colored with the stain of my choice, but most others here seem to prefer clear fillers like epoxy, etc.
Author:  Stuart Gort [ Tue Jun 21, 2011 10:48 am ]
Post subject:  Re: How Should I fill burl
I vote for epoxy too. Tiny pores might be ok to fill with opaque fillers in a clear finish situation but burls can have very large occlusions. I would rather not fill those kinds of things with something opaque. Epoxy also brings up the wood grain and figure like nothing else. Since people use burls specifically for the wood and always apply clear or tint coats...filling with epoxy maximizes the aesthetic potential of a burl.

Epoxy is very aggressive so it adheres to oily woods much better than other glues.

I'll always use epoxy to stabilize the soft, spongy material in highly spaulted woods too. I'll use an artist brush to paint it in and then paint, fill, sand...repeat.....until the surface is smooth. There's nothing better for popping the grain...I am adamant to repeat. :)
Author:  the Padma [ Tue Jun 21, 2011 12:47 pm ]
Post subject:  Re: How Should I fill burl
WindyCityBluesBox wrote:
The title pretty much says it all. I am making a guitar with a burl veneer over the face. Is there any special products that I should be aware about for filling burl, or will the regular products work?




Me likes to use bondo and pigment.

usually me mix 3 different batches with colourant to match colours in the burl.

If done with care...it will not look filled.


blessings
duh Padma
Author:  Bob Matthews [ Tue Jun 21, 2011 6:31 pm ]
Post subject:  Re: How Should I fill burl
Clear for me too, I use epoxy. It not only fills the voids and looks natural, it also re-structuralises the 'defects'.
Author:  alan stassforth [ Tue Jun 21, 2011 8:31 pm ]
Post subject:  Re: How Should I fill burl
Filippo Morelli wrote:
Epoxy for me.

Warning with burl - don't use water based ANYTHING with them ... the suck the water up and go all kinds of sideways.

Filippo

Not only that, but IMO water based finishes don't bring out the best from dark woods.
DAMHIKT.
Or, if you want, you can ask..........
Author:  JasonMoe [ Sat Jun 25, 2011 12:05 am ]
Post subject:  Re: How Should I fill burl
Anyone ever pore fill with fiberglass resin?
Author:  jfmckenna [ Thu Jun 30, 2011 11:28 am ]
Post subject:  Re: How Should I fill burl
I just finished a spalted maple with a red wood burl top guitar and it was a real bear. It was recommended to me to use thin CA and sand it into the top making a slurry filler. It worked ok but in hind sight I'd rather use epoxy the next time. The thin CA worked really well to toughen up the soft areas especially in the spalt lines though.
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