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 Post subject: Re: finish experiment
PostPosted: Thu Jul 12, 2018 9:42 am 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5701
Location: Hegins, Pa
The current progress this is day 3
working on 3 coats a day
One thing I found the helped is the sanding between coats I use 600 grit and only sand in the morning after setting a night.


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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: finish experiment
PostPosted: Thu Jul 12, 2018 10:34 am 
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Joined: Mon Jul 09, 2012 9:49 pm
Posts: 171
John, the technique seems to be apply 3 coats on a day, I suspect separated by some hours of drying, and wait overnight and sand? I am guessing that a 'coat' is what a painter calls a 'cross coat', a wet application in one direction and a second wet application 90 degrees from the first.

Thanks for doing this test. It will take out a lot of guesswork and stumbling.

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peter havriluk


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 Post subject: Re: finish experiment
PostPosted: Thu Jul 12, 2018 11:03 am 
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Joined: Thu May 24, 2012 8:03 am
Posts: 928
Location: Chestertown Maryland
John

You said you sand in the morning, but then you said you sand between coats? How much time between coats? I am about to do a finish and . . inquiring minds.

Ed


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 Post subject: Re: finish experiment
PostPosted: Thu Jul 12, 2018 6:11 pm 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5701
Location: Hegins, Pa
The instructions said to sand between coats , again this is for cabinets , so I didn't like the build rate so I started to sand with 600 in the morning. I do 3 coats about 3 hrs apart . I played with different material like Tee shirt , sweat shirt ( the worse) the best rag was worn tee or the hankies
I also started to pour a small amount out and dip the rag and let it soak up then pouring on the rag. The build after the 3rd day looks even and the shine is actually surprising. Today is the last of the application. I will let this set and do the final level sand and start polishing then.
I will post more pics soon. I am surprised the the gloss that is building.

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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: finish experiment
PostPosted: Thu Jul 12, 2018 7:33 pm 
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Joined: Sun Jul 17, 2016 11:58 pm
Posts: 15
Have you tried applying with a coffee filter? I've found them to be good for spreading and then wiping TruOil which is my standard finish. And a request: could you describe, when you get to it, your process for buffing -- including both equipment and technique. Thanks.


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 Post subject: Re: finish experiment
PostPosted: Fri Jul 13, 2018 5:28 am 
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Joined: Tue May 09, 2017 5:34 am
Posts: 35
This looks very good John and very achievable by me.

Thanks for doing this and looking forward to seeing it after the buffing.

-Pat


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 Post subject: Re: finish experiment
PostPosted: Fri Jul 13, 2018 6:53 am 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5701
Location: Hegins, Pa
Never even thought of that but I know paper towels don't work . To linty

the buffing process is with a shop jox buffing arbor amd 1/3 hp motor I use 2 buffing wheels a smaller 12 in domet and a 16 in cotton . I got the buffing wheel from grizzly and jescar. I also get mazerna from jescar # 204 and 16
Level sanded with 600 and will show those end result next week

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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: finish experiment
PostPosted: Fri Jul 13, 2018 12:05 pm 
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Joined: Mon Jul 28, 2014 7:50 am
Posts: 578
Location: Chadds Ford, PA
Buffing after final coat cures or buffing after level sanding final cured coat?


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 Post subject: Re: finish experiment
PostPosted: Fri Jul 13, 2018 4:50 pm 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5701
Location: Hegins, Pa
first it had to cure
then level sand
then buff

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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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 Post subject: Re: finish experiment
PostPosted: Sat Jul 14, 2018 12:34 pm 
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Joined: Fri Mar 03, 2006 7:09 pm
Posts: 5701
Location: Hegins, Pa
Today I did the level sanding and final buff. I just glued on the neck and will post pics soon. It buffed out beautifully and I am more than pleased with the end result

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John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
Board of Directors of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com


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