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PostPosted: Mon Sep 01, 2008 11:20 am 
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Mahogany
Mahogany

Joined: Sun May 11, 2008 6:25 am
Posts: 89
First name: paul
Last Name: harrell
City: Pittsboro
State: NC
Country: USA
Focus: Build
After several years of using varnish I am about to throw in the towel - I love the look of varnish but it just takes too many hours.
The question I have is where to leave the guitars while the lacquer is curing. My shop is very tight and the outgassing would probably kill me and if I put them in the house my wife would kill me. How important is temperature and humidity control during this time? How long after spraying is the smell and/or toxicity a problem. Any solutions would be appreciated.

Thanks, Paul


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PostPosted: Mon Sep 01, 2008 12:27 pm 
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Posts: 2968
Location: United States
Paul, I don't know where to tell you to keep the guitar for curing other than a well ventilated warm area, and definitely not in your house. But I have a question about the varnish, won't japan drier speed it up?

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PostPosted: Mon Sep 01, 2008 1:13 pm 
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Mahogany
Mahogany

Joined: Sun May 11, 2008 6:25 am
Posts: 89
First name: paul
Last Name: harrell
City: Pittsboro
State: NC
Country: USA
Focus: Build
It's not the drying time that is the problem - It's having to completely sand the guitar between every coat. And you have to sand the final coat very carefully and to a pretty high grit, because sanding scratches don't buff out nearly as easily as they do with lacquer. And if you sand or buff through a coat you get a witness line that cannot be fixed. You just have to do another coat on the entire surface (sides, back or top), there is no touching up.

Peace, Paul


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PostPosted: Mon Sep 01, 2008 1:40 pm 
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Location: Abbotsford, BC Canada
Sounds like you'll have to leave it in your shop. Make a little cabinet like this,

Attachment:
shop stuff 017.jpg


and seal the doors. Add a little computer fan to suck air through the cabinet and out of your shop.


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PostPosted: Mon Sep 01, 2008 7:55 pm 
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Mahogany
Mahogany

Joined: Sun May 11, 2008 6:25 am
Posts: 89
First name: paul
Last Name: harrell
City: Pittsboro
State: NC
Country: USA
Focus: Build
Thanks Rod - That looks like a good solution. Thanks, Paul


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PostPosted: Tue Sep 02, 2008 9:45 am 
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Cocobolo
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Joined: Sun Jul 02, 2006 2:57 am
Posts: 449
Location: United States
Paul, since you're thinking about switching finishes anyway, have you thought about trying Tru Oil? The more I use it the more I like it. It's easy to apply and the end result is a super thin finish that is easy to repair and can be buffed to a fairly high sheen or left as a nice soft satin. I've used it on my last two builds and think that it will be my first choice going forward.


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PostPosted: Tue Sep 02, 2008 4:32 pm 
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Koa
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Joined: Mon Oct 08, 2007 2:31 am
Posts: 936
Location: Ottawa, Canada
I would like to second the tru-oil idea although I must admit it is based on little experience. I haven't tried it up until now because I had assumed that you couldn't get a gloss finish. However, after seeing this guitar:

viewtopic.php?f=10101&t=17078&hilit=+true+oil+

I decided it was time to try it myself. I wiped on 14 thin coats on to a test board and let it sit for three weeks. After that I was able to sand and buff it out to a finish as glossy as anything I've been able to do with Deft, KTM-9 and French polished shellac. And it was the easiest to apply. So I will be using it on the guitar I just started.

Pat

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