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PostPosted: Tue Dec 14, 2010 9:38 pm 
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Mahogany
Mahogany
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Joined: Fri Apr 02, 2010 8:08 pm
Posts: 44
First name: ron
Last Name: atkins
City: ottawa
State: il
Zip/Postal Code: 61350
Country: usa
Focus: Build
Status: Amateur
I put the finishing coats on the top this weekend. I used shellac with a little Behlen Violin Varnish (stew mac sent it to me in error and told me to keep it) added. This is my first guitar, first time I've used a HVLP sprayer, and first time I've spent more than 5 minutes applying finish to any thing wood. I used tru-oil (we don't need to go into the pros and cons of using tru-oil on a musical instrument again) on the back and sides and needed to touch up the binding edges on the top after removing the masking.

I wiped the guitar down with a fresh rag and a few drops of naphtha to remove fingerprints. I properly disposed of that rag. I waited a few seconds and rubbed the guitar down with another fresh rag. I set a small mixing cup upside down on my work surface, put the rag on the cup, and laid the guitar top down on the rag covered cup. I rubbed on the tru-oil and called it a night. You can see where this is going...

This morning I went in and was pretty pleased with the touch ups. Until I flipped the guitar over and saw- THE RING. gaah Apparently there was just enough naphtha on the guitar and thus on the rag to melt the finish where the cup made contact with the rag and guitar top. Looks like I'll be sanding all the way down to wood and starting over on the top.

Attachment:
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These compressed pictures don't do the damage, or the pretty decent first spray job attempt, any justice.


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rono


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PostPosted: Tue Dec 14, 2010 11:26 pm 
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Contributing Member
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Joined: Fri May 09, 2008 2:25 pm
Posts: 1958
First name: George
City: Seattle
State: WA
Country: USA
Focus: Build
Status: Amateur
Nice guitar. Keep your chin up. I bet it will turn out just fine.

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George :-)


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PostPosted: Tue Dec 14, 2010 11:38 pm 
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Contributing Member
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Joined: Wed Feb 15, 2006 7:37 am
Posts: 4817
LOL, I feel your pain. I just ruined my fresh finish job tonight by using the wrong solvent to clean of CA glue. This was to fix the bridge that misaligned itself under clamping pressure. So now I get to redo the finish.


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PostPosted: Wed Dec 15, 2010 8:12 am 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Tue Nov 29, 2005 11:44 am
Posts: 2186
Location: Newark, DE
First name: Jim
Last Name: Kirby
Focus: Build
Status: Amateur
Yeah, we'd need to see the 'after the bandsaw' picture for it to count as a candidate.

(Now let's see ...Where's the one of that neck I was working on last year? [xx(] )

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kirby@udel.edu


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PostPosted: Wed Dec 15, 2010 9:01 am 
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Joined: Fri Mar 24, 2006 12:42 pm
Posts: 2360
Location: Windsor Ontario Canada
First name: Fred
Last Name: Tellier
City: Windsor
State: Ontario
Zip/Postal Code: N8T2C6
Country: Canada
Focus: Build
Status: Amateur
If it can be fixed it is just educational not a real screw up. If it can be fixed easily it is only a speed bump. I have found the best thing with a boo boo is to walk away for a while before trying to repair.

Fred

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http://www.fetellierguitars.com
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PostPosted: Wed Dec 15, 2010 10:38 am 
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Cocobolo
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Joined: Tue Mar 17, 2009 10:22 am
Posts: 393
First name: Martin
Last Name: Lane
City: Grand Rapids
State: Michigan
Focus: Build
If you don't have to redo it 3 or 4 times over a period of about 3 months, you'll be doing better than I did on my first finish job.

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"...you have to get over your strict adherence to your largely imagined notion of absolute perfection..."


Last edited by enalnitram on Wed Dec 15, 2010 11:09 am, edited 1 time in total.

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PostPosted: Wed Dec 15, 2010 11:00 am 
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Cocobolo
Cocobolo

Joined: Tue Nov 27, 2007 2:36 am
Posts: 241
Location: Magnolia, Texas
First name: Chuck
Last Name: Gilbert
Focus: Build
Status: Semi-pro
Ouch! Upon discovering a mistake - no matter how big or small - smile as big as you can. I mean genuinely smile. :D

Then accept and appreciate the learning opportunity that has been given to you. Learning is a wonderful thing.

Happy Holidays everyone!

Chuck

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PostPosted: Wed Dec 15, 2010 11:46 am 
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Cocobolo
Cocobolo

Joined: Mon Nov 02, 2009 1:34 pm
Posts: 156
First name: Ellison
City: Whitman
State: MA
Focus: Build
Status: Semi-pro
I feel your pain. I was level sanding the varnish finish of the soundboard of my latest and I sanding down to the wood in a tiny spot. It's barely noticeable and I was to just move on and pretend it didnt happen, but I know it'll haunt me forever in the right light! So I'll be joining you in sanding off the finish and starting over!


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