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-   -   I Fudged Up (https://www.acousticguitarforum.com/forums/showthread.php?t=466125)

23dmorris 04-09-2017 05:16 PM

I Fudged Up
 
First of all, thanks for welcoming me into this awesome forum. I've been an outside visitor for some time now, so it's nice to be able to actually participate.



On to my delimma:



I'm an idiot. I bought this brand new 2016 DSR-GC for nearly nothing due to there being a fairly large Crack in the back. I've rehumidified the guitar for about a week and noticed that the two halves were uneven (one side higher then the other) after they finally grew together. Because I'm about as hard headed as they come, I decided to fix it myself using a dulled razor blade and some super glue. Here is the result after sanding, wet sanding, steel wool etc etc.. the guitar has a satin finish on it, so yeah I messed that up. Should I go ahead and polish the rest of the guitar or should I sand off the awful super glue and try an aerosol satin finish and blend? I'm lost. Thanks.





https://uploads.tapatalk-cdn.com/201...39414bf65b.jpg

https://uploads.tapatalk-cdn.com/201...5c1a8d8ab7.jpg

mirwa 04-09-2017 05:51 PM

Not easy is it.

Smooth it out, sand it flat and start again

Steve

runamuck 04-09-2017 06:01 PM

The white stuff is probably from using a super glue accelerator spray. It's not from the glue itself.

Yeah, scrape (a sharp, single edged razor blade will work) or sand it off and then respray.

Jim

ManyMartinMan 04-09-2017 06:02 PM

If it's going to bother you, have a local luthier repair/refinish it. If it doesn't bother you that much, you can simply polish out the back so it looks even.

23dmorris 04-09-2017 06:15 PM

The white area is actually where I've sanded down through finish by mistake. Do you recommend something other than super glue? Polishing isn't out of the question as I've done that with my other martin with awesome results. I'm just having trouble figuring out how to level what I have or if I need to sand it down to the wood and spray a matte or satin coat on the area. The Crack is stable now. I cleated it with some scrap rosewood I had. I know the finish is only cosmetic, and thankfully on the back only, but I know I'll look at it every time I pick it up.


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fazool 04-09-2017 08:04 PM

OK, you don't want to make things worse. A DSR has a nitrocellulose finish so that should be easy to blend in, especially in satin.

What you are going to need to do is scrape fully smooth, then restain the wood to match then recoat with nitro in the spot then blend it in and reshoot nitro again.

That can definitely be fixed.

Scootch 04-09-2017 08:15 PM

A good place to put a sticker?

23dmorris 04-09-2017 08:29 PM

Quote:

Originally Posted by fazool (Post 5299538)
OK, you don't want to make things worse. A DSR has a nitrocellulose finish so that should be easy to blend in, especially in satin.



What you are going to need to do is scrape fully smooth, then restain the wood to match then recoat with nitro in the spot then blend it in and reshoot nitro again.



That can definitely be fixed.



So the rosewood is stained? I thought the nitro is what darkened it.


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fazool 04-09-2017 08:39 PM

Quote:

Originally Posted by 23dmorris (Post 5299550)
So the rosewood is stained? I thought the nitro is what darkened it.


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No. nitro is mostly clear(-ish) that wood is stained.

If you aren't familiar with the finer points of stain, finishing etc you might want to take it to someone to fix.

23dmorris 04-09-2017 08:57 PM

No, I am. I've polyurethaned rosewood in the past, and it darkened it, that's why I asked.


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23dmorris 04-09-2017 09:02 PM

Here is what I have so far. I've managed to get most of the glue off, unfortunately it also took most of the finish with it. I've ordered some color tone satin nitro spray lacquer from stewmac. I was going to tape off the better looking finish and try a thin coat or two of that and blend. What stain do you recommend?


https://uploads.tapatalk-cdn.com/201...2494ff4e91.jpg


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mirwa 04-09-2017 10:29 PM

If you wipe it with a damp cloth, does the colour match, if so, then you just need to put clear coats on it, if the colour does not match (very distinctive mis-match) then you need to add a stain to the mix

Steve

runamuck 04-09-2017 10:35 PM

It doesn't look stained to me.

23dmorris 04-09-2017 11:00 PM

Yeah, I'm thinking it's not stained. If I rub water on it, it looks perfectly matched. So hopefully the nitro spray will save it.


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Hot Vibrato 04-10-2017 06:40 AM

Quote:

Originally Posted by fazool (Post 5299556)
No. nitro is mostly clear(-ish) that wood is stained.

If you aren't familiar with the finer points of stain, finishing etc you might want to take it to someone to fix.

That's rosewood, isn't it? I think it is not stained. Nobody stains rosewood.

joe white 04-10-2017 06:52 AM

I have to agree with the others, highly doubt that the rosewood is stained. The finish (yes, even a satin finish) will darken bare, raw wood.

fazool 04-10-2017 06:55 AM

Quote:

Originally Posted by Hot Vibrato (Post 5299786)
That's rosewood, isn't it? I think it is not stained. Nobody stains rosewood.


Good correction. I was sort of in general wood mode.

M Hayden 04-10-2017 01:18 PM

Actually, Martin used and (I think) still uses a dark walnut stain on many of their instruments.

joe white 04-10-2017 05:01 PM

Quote:

Originally Posted by M Hayden (Post 5300212)
Actually, Martin used and (I think) still uses a dark walnut stain on many of their instruments.


You may be right, I'm certainly no Martin expert. Might you be thinking of their paste pore filler that they kind of "buff" into the back and sides? I think that is kind of a walnut colored stuff.

23dmorris 04-10-2017 05:15 PM

Talked to a martin Rep and he said they only use a dark colored pore filler that doesn't change the color of the wood and that a nitro finish will darken it.


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Ned Milburn 04-10-2017 06:08 PM

I'd feed some shellac into the wood before laying down another finish if indeed it is bare wood.

Yes you did fudge up. I won't pile on regarding that. But you should ask yourself, do you think you're going to be able to improve the situation by spraying or brushing a lacquer onto the guitar? Both spraying and brushing are challenging techniques on their own (specialties, really), and blending a new finish in a spot with a pre-existing finish is even more challenging.

But if you want to have fun and get experience, just "give 'er, buddy" as people say around these parts.

Truckjohn 04-11-2017 11:19 AM

I am guessing that the original rosewood was sealed with some sort of sealer product originally... Vinyl sealer or shellac.

To match the original finish - you will probably need to do some of that as well.

But I agree with the rest here. Finishing guitars is extremely challenging because the finishes have to be about perfect or they look horrible.

This is made more so because you dont want to wreck the existing finish... And unfortunately - you are at a very dangerous point. You are very quickly heading down the rat hole "throwing good money after bad" with this job.. Think - you started off to put a drop or 2 of superglue into a small closed crack and now you are about to refinish the whole back.....

And what started out as a $50 repair has now passed a $300 repair and is quickly going up from there.

Pick a point where you will stop and you cut your losses. I recommend THIS round. I think this will be important here. Because the more times you touch this repair - the bigger it keeps getting.

23dmorris 04-11-2017 03:46 PM

I ended up refinishing and I think it looks remarkable. Thanks everyone for their input!

https://uploads.tapatalk-cdn.com/201...d1e1f3b016.jpg

https://uploads.tapatalk-cdn.com/201...022a02f16d.jpg


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Ned Milburn 04-11-2017 04:33 PM

Looks like you did a fine job! Well done!

Truckjohn 04-12-2017 07:27 AM

Looks great. A better job than I have seen on quite a few "professional" repairs on my guitars.

23dmorris 04-12-2017 07:55 AM

I appreciate that guys! This whole process was actually a lot of fun. Looking forward to my next screw up lol.


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fazool 04-12-2017 08:41 AM

Nice job!


.

redir 04-12-2017 09:24 AM

That looks great!

The filler that was used may or may not act as a stain.

But anyway, just so you know in the future, when cracks come together like that uneven you should just be able to reach inside the sound hole and pop them back together in place. If it comes back together nice and tight then you are lucky, if not then I use a plexiglass caul clamped from the outside with 'go bars' inside the body to align the crack before then applying pressure from the side, across and perpendicular to the crack, so that the two cracked halves come together perfectly.

wisedennis 11-21-2019 05:24 PM

Beautiful job

bnjp 11-22-2019 05:42 PM

Quote:

Originally Posted by Hot Vibrato (Post 5299786)
That's rosewood, isn't it? I think it is not stained. Nobody stains rosewood.

They do sometimes. I've seen rosewood sprayed with a tinted finish. I know cause I've sanded through it! Had to airbrush to repair.

If the finish on that taylor is impervious to acetone...you can use it to remove the super glue.


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