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PostPosted: Thu Mar 03, 2005 6:11 am 
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Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
It will work fine but I don't have experiance with it. You can use other epoxys as well common 5-min clear will do the job but does not flow as well as Zpoxy finising resin, and working time is short. There are many good finishing epoxys availible. my guess is if you look you can find a fine finish supply house near you. and they will have good quaility epoxy fillers available.


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PostPosted: Thu Mar 03, 2005 7:21 am 
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Cocobolo
Cocobolo

Joined: Thu Jan 20, 2005 8:24 am
Posts: 225
Location: United States
Can I use Epoxy glue that you can get at Home Depot.........or is this not the same stuff.

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PostPosted: Thu Mar 03, 2005 7:38 am 
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Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
If you mean a 2 part 2hr thru 5min epoxies, yes you can. I will not vouch for them though because some formulas cure softer or more rubbery than others. Buy some test on scrap to be sure it cures clear and sands well. If it sand well then you can use it. I alway would allow it to cure 24 hrs before sanding. The harder it cures the better it sands. You can cut the epoxy with DA to make it thinner but no more than 5-10%. Test first. I have had some epoxies not cure properly if cut.


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PostPosted: Fri Mar 04, 2005 2:26 am 
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Koa
Koa

Joined: Mon Jan 17, 2005 4:05 pm
Posts: 855
Location: United States
First name: Josh
Last Name: French
City: Houston
State: TX
[QUOTE=Colin S] [QUOTE=Shawn]
fills pores using egg whites which dry clear. If he wants the egg white filler to add color, he adds color by boiling chicory (cheap in the coffee section of the grocer used for New Orleans style coffee) and adding a few drops of that brew to the egg whites. Geza's techniques have their roots in old world lutherie from violin family builders.[/QUOTE]

Shawn, don't tell every one, this is supposed to be a well kept secret of the Cremonese violin makers, chemical analysis of varnish flakes by David Hume and Charles Beare, in my lab, show that albumen is present under the varnish. I believe the pore filling is just a by product of the process. This has been known for a long time and used by instrument makers for centuries. I believe Joshua amongst others uses it.

Colin[/QUOTE]

This is one of those things there is a lot of folklore about... that the complex(?) protein structure of egg white (or for those of you with a lab... albumen) is good for the sound. I was told it was an old Voilin makers base (which Colin confirms), and it does appear to help the evenness of color while shellacing.

I usually do the pore filling on the back/sides and egg white on the soundboard right before adding shellac (well, once its dried overnight and cut back with 400 grit anyway). But lately I've been covering the entire guitar in egg white before polishing. It doesn't take much, and dries clear. Plus I like the folklore and old violin secrets.

Not to mention its terribly obvious that you people here are not giving your new guitars the protein they need!

edit: I sometimes do the egg white procedure twice, as it will expose any minor imperfections in your final sanding of the wood, and is quite sueful for that.

best wishes,
Joshuajfrench38415.4479513889

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PostPosted: Fri Mar 04, 2005 3:22 am 
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Cocobolo
Cocobolo

Joined: Thu Jan 20, 2005 8:24 am
Posts: 225
Location: United States
I was reading Jeff Jewitt's book, "Hand Applied Finishes" last night. In the French Polishing section, one of his filling techniques is as follows:

Mix 4 oz. of shellac flakes to 4 oz. of DA. After this dissolves, add 3 to 4 oz of 4F pumice. Apply to guitar with a brush by "pushing" it into the pores. Squeegy off, and remove excess with a cloth dampened with DA.

Has anyone tried this?

Thanks,

Doug Ubele

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PostPosted: Fri Mar 04, 2005 6:39 am 
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Old Growth Brazilian
Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States
I don't know but this sound strange to me because it makes it sound like you are using a mixture of shellac, DA and Pumice to make a thin paste to fill with. Using Pumice as you would use micro beads in an epoxy filler to fill large gaps in something. Applied this way I don't see the point in the pumice. In the French polish technique the pumice is an abrasive to pull off fibers from the wood I don't see in this method it doing anything but acting as a filler compound..But I would have to study this method to understand I guess


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