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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: 799
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: 5968
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: 799
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: 6261
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: 1036
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
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Joined: Fri Mar 17, 2006 2:02 pm
Posts: 54
First name: R.M.
Last Name: Mottola
Status: Professional
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.

I don't check in here very often. If you need to contact me the best bet is via email through the contact page on my site.


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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