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| Finish repair advice http://w-ww.luthiersforum.com/forum/viewtopic.php?f=10101&t=52756 |
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| Author: | charlton [ Sat Dec 21, 2019 10:22 pm ] |
| Post subject: | Finish repair advice |
Hi, I have a friend who had an accident with her classical guitar where the top and binding separated and suffered some damage. I managed to get everything all fixed up but now I'm at the point of having to deal with fixing the finish. I tried to contact the manufacturer to determine what sort of finish is being use but there was no response (expected). I'm wondering if anyone has any advice on how to best approach fixing finish like this. I have actually scraped a bit of the finish down and my intention was just to use an airbrush to spray some EM6000 and feather the finish in but I'm now having reservations about whether this would hold up long-term with the existing finish being unknown. Assuming the finish is something modern (like some sort of UV-cured finish), would applying EM6000 over the existing finish (scuffing the gloss, of course) and feathering be doable? Thanks! Charlton |
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| Author: | Clay S. [ Sat Dec 21, 2019 10:52 pm ] |
| Post subject: | Re: Finish repair advice |
If you mention the manufacturer's name and about how old the guitar is there may be someone here who could tell you what the finish is and how best to repair it. |
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| Author: | charlton [ Sat Dec 21, 2019 11:21 pm ] |
| Post subject: | Re: Finish repair advice |
HI Clay, Good point. The company is Almansa and I gather the guitar is probably 3-4 years old. Thanks, Charlton |
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| Author: | Carey [ Sat Dec 21, 2019 11:43 pm ] |
| Post subject: | Re: Finish repair advice |
A fair guess is that it's got polyester or polyurethane on it, but knowing that doesn't help much. Photos would help, but what I'd likely do is wipe the affected area with some very pale shellac first, then drop-fill the hollows you'll probably have with CA, then wipe on a little more shellac. Various approaches to blend *a little* after that. It won't be perfect, but IMO spraying something like that often creates more problems than it solves. One opinion. |
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| Author: | B. Howard [ Sun Dec 22, 2019 8:25 am ] |
| Post subject: | Re: Finish repair advice |
Endurovar will leave witness lines at the edge of the repaired section. There is also a real risk of sanding through the original finish just beyond the edge of the new material when level sanding to buff. Makes no difference what the finish is if it is a closed polymer system (meaning it will not redisolv with solvent). Repair options are the same. Most will have nothing more than CA to work with that will work. But a good auto body cut in repair clear and an airbrush can make a quite seemles repair in most of these finishes. |
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