Cleaned up nicely now to get some retarder to drop fill it.
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| scuff/ding in nitro lacquer http://www-.luthiersforum.com/forum/viewtopic.php?f=10137&t=47403 |
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| Author: | Rod True [ Mon Mar 07, 2016 1:15 am ] |
| Post subject: | scuff/ding in nitro lacquer |
Hi folks, I need your help. One of my guitars has come home and the owner would like to have this ding/scuff fixed. I have no idea what caused it, it's not really deep at all but it does have a blackish scuff mark, plus you can see at the end it has fractured the lacquer which I'm not too worried about fixing, there are other spots on the guitar that have dents which fracture the lacquer. So I'm just wondering how to fix the scuff mark really? Attachment: IMG_7312.JPG Attachment: IMG_7313.JPG Attachment: IMG_7314.JPG
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| Author: | B. Howard [ Mon Mar 07, 2016 8:20 am ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
Assuming it's nitro first I would sand out the black part of the mark with 600. Then I would clean with naptha and decide whether or not I needed to add more lacquer or just melt the fracture back together with a bit of retarder. After that has dried properly sand out the repair again at 600 and buff. |
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| Author: | Ben-Had [ Mon Mar 07, 2016 8:51 am ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
B. Howard wrote: Assuming it's nitro first I would sand out the black part of the mark with 600. Then I would clean with naptha and decide whether or not I needed to add more lacquer or just melt the fracture back together with a bit of retarder. After that has dried properly sand out the repair again at 600 and buff. Brian, when you use retarder for that, are you applying just a drop like you would when drop filling? |
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| Author: | B. Howard [ Tue Mar 08, 2016 7:32 am ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
I am typically spraying it with an airbrush but you can drop it on. |
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| Author: | Rod True [ Tue Mar 08, 2016 10:18 am ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
Thanks Brian. The finish is Mohawk classic instrument lacquer. I don't have any retarder so can I use thinner or thinned down lacquer to fill the fracture. I'll get some naptha to clean the black off to see where I'm at. I did tell the owner that this is just what happens when these things get played but he was pretty crushed when it happened although there are other dings and scratches after a couple years of use. I'll clean it up and see how it turns out. I'm not married to the idea that it will be perfect again. |
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| Author: | Rod True [ Tue Mar 08, 2016 5:32 pm ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
Cleaned up nicely now to get some retarder to drop fill it. Sent from my iPhone using Tapatalk |
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| Author: | GluBoost [ Fri Apr 08, 2016 3:47 pm ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
Are you talking about something like this: Our Fill n Finish is known to work some magic on dents https://www.youtube.com/watch?v=vd0INGg3OM8 |
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| Author: | Haans [ Fri Apr 08, 2016 7:18 pm ] |
| Post subject: | Re: scuff/ding in nitro lacquer |
Rod, the old fashioned way to repair lacquer was to use an epoxy thinner like cellosolve acetate. I used to airbrush the area with it straight to soften the old lacquer, drop fill some thickened lacquer in the holes, then airbrush several coats over he area. Once that was done I would spray cellosolve over the area again and wait a week, Then I would call the customer in and give him the guitar. He could return at a later date to have it rebuffed, usually 2-4 months. |
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