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dofthesea
PostPosted: Thu Mar 30, 2023 10:17 am 
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Joined: Sat Sep 14, 2013 9:46 pm
Posts: 758
Location: Napa Valley
First name: David
Last Name: Foster
City: Napa
State: CA
Zip/Postal Code: 94558
Country: USA
Focus: Build
Status: Amateur
Anyone have any experience with this product? Thoughts? ideas?

H.BEHLEN QUALASOLE.
Modern Frech Polish

French polish oil

https://www.google.com/imgres?imgurl=ht ... 0QUALASOLE™&ved=2ahUKEwibjoqD-YP-AhVdOkQIHbsTAQEQMygCegQIARBL

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Clay S.
PostPosted: Thu Mar 30, 2023 11:16 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Sun Mar 30, 2008 8:20 am
Posts: 5939
Hi David,
If you look at the SDS ingredients it appears to be a thin cut of shellac and boiled linseed oil dissolved in alcohol and a number of other nasty solvents.
https://toolsforworkingwood.com/prodimg ... -00016.pdf
A post from Mandolin Cafe:
https://www.mandolincafe.com/forum/arch ... 18116.html


These users thanked the author Clay S. for the post (total 2): rmmottola (Tue Apr 04, 2023 5:57 pm) • dofthesea (Thu Mar 30, 2023 6:21 pm)
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dofthesea
PostPosted: Thu Mar 30, 2023 12:24 pm 
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Joined: Sat Sep 14, 2013 9:46 pm
Posts: 758
Location: Napa Valley
First name: David
Last Name: Foster
City: Napa
State: CA
Zip/Postal Code: 94558
Country: USA
Focus: Build
Status: Amateur
Hi Clay, that sounds like an automatic disqualifier. thanks for the info.

I don't mind mixing my own shellac was just looking at an easier way

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jfmckenna
PostPosted: Thu Mar 30, 2023 3:14 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue May 13, 2008 10:44 am
Posts: 6237
Location: Virginia
That's been around forever. I think it was even suggested for use in Sloane's books. Something like Royal-Lac would be better considered a 'modern' French Polish imho.


These users thanked the author jfmckenna for the post: dofthesea (Thu Mar 30, 2023 6:21 pm)
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ballbanjos
PostPosted: Thu Mar 30, 2023 5:59 pm 
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Koa
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Joined: Fri Jun 22, 2007 11:14 am
Posts: 1014
Location: Newland, North Carolina
First name: Dave
Last Name: Ball
I used Qualasole once back in the 70's and was totally unimpressed. Didn't know about the toxicity issues at the time, but it just never got a build like good old shellac.

Dave


These users thanked the author ballbanjos for the post (total 2): SteveSmith (Thu Mar 30, 2023 6:35 pm) • dofthesea (Thu Mar 30, 2023 6:21 pm)
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rmmottola
PostPosted: Tue Apr 04, 2023 5:56 pm 
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Mahogany
Mahogany

Joined: Fri Mar 17, 2006 2:02 pm
Posts: 40
This stuff is functionally awesome for its intended purpose, which is touch up work. It builds very fast, dries hard very fast, has a nice amber color which matches most aged finishes, doesn't require any additional oil, and will burn in to anything that is burn-in-able. I use it for spot repairs all the time. I do not use it for finishing and cannot recommend it for that purpose. The main drawback it has is described well by Clay: It is viciously toxic. Wouldn't surprise me if just reading the MSDS could give you cancer! I'd like to stick around for a few more years, and the amount of exposure that would be required to finish an entire instrument with it is well above my personal safety threshold.

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Author of the books Building the Steel String Acoustic Guitar and Mottola's Cyclopedic Dictionary of Lutherie Terms.


These users thanked the author rmmottola for the post (total 2): Durero (Wed Apr 05, 2023 10:46 am) • Pat Foster (Tue Apr 04, 2023 6:56 pm)
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