cleaning footprint for bridge

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jartzh
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Joined: Tue Dec 16, 2014 6:05 pm

cleaning footprint for bridge

Post by jartzh »

I got excited and vinyl sealed the body without masking off the bridge area. How do I clean the area to glue on the bridge?
I was just too excited about seeing the grain of the wood!
MaineGeezer
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Re: cleaning footprint for bridge

Post by MaineGeezer »

I'd probably try chemical paint stripper - the old-fashioned lethal kind that chemically breaks down the finish. Whether even that willl touch a high-tech plastic sealer I don't know.
Don't believe everything you know.
Anything is possible if you don't know what you are talking about.
When things are bad, try not to make them any worse, because it is quite likely they are bad enough already. - French Foreign Legion
johnnparchem
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Re: cleaning footprint for bridge

Post by johnnparchem »

I do not use vinyl sealer, but I do not mask for the bridge before finishing. Rather when the guitar is totally finished, I place the bridge, carefully score the finish with a scalpel or an exacto knife around the bridge, and use straight edge razors and chisels to remove all of the finish from the wood under the bridge. I do the bulk away from the bridge profile using a razor blade as a scraper and I carefully use a chisel to remove the remaining finish to the score line.
tippie53
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Re: cleaning footprint for bridge

Post by tippie53 »

https://www.youtube.com/watch?v=EJG5Frbu78c
there are many ways to do this. this is my preferred

method.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Danl8
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Re: cleaning footprint for bridge

Post by Danl8 »

I just did this for the third time this past weekend (using John Hall's method). I will never go back to rubbing the finish off with alcohol and razor blades, etc., again. I was a bit put off by this technique when I saw it done at the factory in Nazareth last summer, but it is a really clean way to glue the bridge.
B. Howard
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Re: cleaning footprint for bridge

Post by B. Howard »

John converted me to routing them off, I will not scrape another.
You never know what you are capable of until you actually try....

Brian Howard
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johnnparchem
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Re: cleaning footprint for bridge

Post by johnnparchem »

I will give the router a try the next time.
tippie53
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Re: cleaning footprint for bridge

Post by tippie53 »

only used a stripper once and it worked
so well it ruined the top and I had to redo it. Never make that mistake again.
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
Phil
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Re: cleaning footprint for bridge

Post by Phil »

Perfect timing as a refresher for me. Will be trying this method for the first time as soon as I finish making the bridge for my current build.
tippie53
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Re: cleaning footprint for bridge

Post by tippie53 »

Martin uses a cnc machine. They were taking .030 out of the top and using about a 1/32 bit to out line the bridge. I hated this as it makes removing a bridge impossible without damage. I will route them off , the replace the bridge . I take about a .010 just enough to touch the wood and sand clean. I also chamfer the edges of the bridge so I have a clearance to the corner.
been doing that way since 2000
John Hall
Blues Creek Guitars Inc
Authorized CF Martin Repair Center
president of Association of Stringed Instrument Artisans
http://www.bluescreekguitars.com
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