finish experiment

The Achilles' Heel of Luthiery
tippie53
Posts: 7011
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: finish experiment

Post by tippie53 »

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.
You do not have the required permissions to view the files attached to this post.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
phavriluk
Posts: 554
Joined: Mon Jul 09, 2012 9:49 pm

Re: finish experiment

Post by phavriluk »

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.
peter havriluk
ruby@magpage.com
Posts: 1564
Joined: Thu May 24, 2012 8:03 am
Location: Chestertown Maryland

Re: finish experiment

Post by ruby@magpage.com »

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
Ed M
tippie53
Posts: 7011
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: finish experiment

Post by tippie53 »

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.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
yellowesty
Posts: 23
Joined: Sun Jul 17, 2016 11:58 pm
Location: Petaluma, Calif.

Re: finish experiment

Post by yellowesty »

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.
lonecedar959
Posts: 52
Joined: Tue May 09, 2017 5:34 am

Re: finish experiment

Post by lonecedar959 »

This looks very good John and very achievable by me.

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

-Pat
tippie53
Posts: 7011
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: finish experiment

Post by tippie53 »

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
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Danl8
Posts: 733
Joined: Mon Jul 28, 2014 7:50 am
Location: Chadds Ford, PA

Re: finish experiment

Post by Danl8 »

Buffing after final coat cures or buffing after level sanding final cured coat?
tippie53
Posts: 7011
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: finish experiment

Post by tippie53 »

first it had to cure
then level sand
then buff
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
tippie53
Posts: 7011
Joined: Fri Mar 03, 2006 7:09 pm
Location: Hegins, Pa
Contact:

Re: finish experiment

Post by tippie53 »

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