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| Scarf repair http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=20956 |
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| Author: | LiquidGabe [ Mon Feb 09, 2009 2:46 pm ] |
| Post subject: | Scarf repair |
My friend brought me his Schecter electric guitar which got knocked over and the scarf joint snapped. Seems a simple fix, but I have a couple of concerns: What type of glue will adhere best on the old glue line? Besides basic care, should I take precautions to protect the truss rod? It has some sort of blue covering, but I can't make out exactly what it is. Attachment: scarf.jpg
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| Author: | Steve Saville [ Mon Feb 09, 2009 3:06 pm ] |
| Post subject: | Re: Scarf repair |
These repairs can be easy or hard, depending on the adhesive used. You need to know what kind of adhesive was used. Do not proceed with knowing this! If AR/Titebond etc - this is going to be hard. The old glue needs to be removed before completing the repair. This can be hard. I would recomend in this case that the repair be done with epoxy. Some will strongly disagree.  If it was HHG, just clean it up so that it fits tight and add more glue and clamp. Let us know what the adhesive was. |
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| Author: | Barry Daniels [ Mon Feb 09, 2009 3:16 pm ] |
| Post subject: | Re: Scarf repair |
I seriously doubt the factory used hot hide glue so I would assume that it is some type of alphatic resin. And no glue will stick very well to that. I would slip some sandpaper into the joint, close the joint and pull the paper out. Sort of like flosssing the cheeks. This will rough up the glue and possibly get a few spots back to wood. But don't overdo this or you may end up with visible gaps and possibly a back bend in the fretboard. Then reglue. |
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| Author: | Mike Dotson [ Mon Feb 09, 2009 6:39 pm ] |
| Post subject: | Re: Scarf repair |
SUCH a bad spot for a scarf joint. ![[headinwall]](./images/smilies/headbangwalluf8.gif "Mad") Stress in the wrong direction and impossible to support on both sides like you can do on a headstock. I fixed a Fender acoustic that was exactly the same way. I did it like Barry mentioned using 220 paper. Just a few strokes on both surfaces, then glued it with Tite-Bond. Doing the sanding created a slight 'dip' at the peak of the joint but I just did a Super Glue fill and sanded/buffed it. It showed a little but stayed solid as long as I knew the owner, which was for another couple years. |
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