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FDP Forum / Guitar Mods, Repairs, and Projects / Yellowing Reversal

jesse1d

canada

Jul 6th, 2019 09:02 PM   Edit   Profile  

Sunlight exposure over time tends to yellows lacquer and poly. Just wondering if there is anything short of sanding and re-spraying to remove the color shift. Like Crest whitening strips (just kidding).



Achase4u
Contributing Member
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U.S. - Virginia

Jul 6th, 2019 09:12 PM   Edit   Profile  

Interesting thought. I think part of the issue is that the yellow of the resins(or whatever in there yellows) is in all layers of the clear finish. So even if you can get the top layer looking better, the rest of the finish underneath will still be yellow. I really don't know of a way to get to them without removing finish.

Maybe there will be a magic light that reverses it. Though with all the non-aging finish tech now, they probably won't bother.

jesse1d

canada

Jul 7th, 2019 12:18 AM   Edit   Profile  

I leave a guitar on a stand within reaching distance all over the house. I do this to make it easy to play every day so I stay in contact with how it feels and to practice and compose. But they sure do change quite rapidly to ones left in their case.

Possibly laser treatment could work, I mean if light caused it maybe it could reverse it right, but a what cost? These necks have gone from natural maple color to very orange. I used to like that as it created the illusion of age but some guitars just look better without it.

Achase4u
Contributing Member
*********

U.S. - Virginia

Jul 7th, 2019 01:08 AM   Edit   Profile  

The problem is some guitars come with dyed lacquer to make them look 50 years old. Then the lacquer itself ages over the dye. Welp, then you have a neck that is very orange.

Tough pickle to be in. I generally dont age with dyes when I spray for this reason. Maybe just a touch but no more.

wrnchbndr

New Jersey

I'm back with the otters again
Jul 7th, 2019 07:30 AM   Edit   Profile  

People pay good money for that yellow.

Things age. It a rule.

Peegoo
Contributing Member
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**********
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If irritation occurs

discontinue use.
Jul 7th, 2019 08:24 AM   Edit   Profile  

There is no practical way to reverse the color change because it's a combination of things: color change in (not on) the finish, and color change on the surface of the wood.

FDP Forum / Guitar Mods, Repairs, and Projects / Yellowing Reversal




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