Or a burst finish?
| Official Luthiers Forum! http://mowrystrings.luthiersforum.com/forum/ |
|
| CA glue yellowing http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10102&t=13906 |
Page 1 of 1 |
| Author: | jack [ Fri Oct 05, 2007 8:27 am ] |
| Post subject: | |
Advice please. I have used CA to glue in a abalone rosette ring. Where the glue overran the abalone it has yellowed the top, and sanding doesn't seem to take it out. Any advice how I can remove the yellow stain? Thanks, Jack |
|
| Author: | Michael Dale Payne [ Fri Oct 05, 2007 8:52 am ] |
| Post subject: | |
Well this is a lesson learned the hard way I am affarid. when using CA on a top you want to seal the top and any end grain in the area of work with shellac first. That has happened is the Ca has penetrated the spruce or Cedar and I am afraid there is no way to get rid of it. |
|
| Author: | Michael Dale Payne [ Fri Oct 05, 2007 8:53 am ] |
| Post subject: | |
Well this is a lesson learned the hard way I am affarid. when using CA on a top you want to seal the top and any end grain in the area of work with shellac first. What has happened is the Ca has penetrated the spruce or Cedar and I am afraid there is no way to get rid of it. |
|
| Author: | Steve Saville [ Fri Oct 05, 2007 9:00 am ] |
| Post subject: | |
You might be able to enlarge the rosette, thereby removing the stained wood. |
|
| Author: | Michael Dale Payne [ Fri Oct 05, 2007 9:04 am ] |
| Post subject: | |
Or a burst finish?
|
|
| Author: | Bill Bergman [ Fri Oct 05, 2007 10:26 am ] |
| Post subject: | |
Does the application of a finsih tend to mute this, i.e., is the CA really as stain, or is it just the different appearance of a finished wood? I don't know, just asking. |
|
| Author: | Bob Garrish [ Fri Oct 05, 2007 10:30 am ] |
| Post subject: | |
I've also wondered if the finish/sealer would hide the effect (since it is a 'wetting' effect). As a closely related question, does hide glue do the same thing when inlaying? I've got to inlay some rosettes soon but so far I've been doing all my inlay work into fingerboards/headplates with CA. Titebond is my last resort... |
|
| Author: | LuthierSupplier [ Fri Oct 05, 2007 10:38 am ] |
| Post subject: | |
Good friend of mine is a professional builder and he says it is the type of CA that causes this. Not all CA's have this effect. But all CA's will cause staining in the end grain if not sealed. Also, the finish won't matter, once it is there, it will show under finish. He actually showed me one that had discolored, and it still showed under the finish. Tracy |
|
| Author: | Dennis E. [ Fri Oct 05, 2007 10:53 am ] |
| Post subject: | |
It's not an error, it's a feature. Squeegee CA over the rest of the top to even out the color. |
|
| Author: | tippie53 [ Fri Oct 05, 2007 11:39 am ] |
| Post subject: | |
Once the top yellows you can't get it out. I find that red spruce is a pain for that. I know some of you still use CA but I use tite bond on all wood rosettes and DUCO cement for the plastic. Once burned best learned john hall blues creek guitars |
|
| Author: | Colin S [ Fri Oct 05, 2007 8:22 pm ] |
| Post subject: | |
That's one of the two reasons I don't have any CA in the place. I know that I'd forget to put the shellac on one time and end up with a ruined top. In fact I was inlaying a rosettte yesterday, no day before, using multiple strips of purfling and found that fish glue was perfect for the job. Colin |
|
| Author: | jack [ Sat Oct 06, 2007 12:12 am ] |
| Post subject: | |
Thanks for everyone's help; I had for the most part, decided that the stain wouldn't come out and am resigned to either doing a black or sunburst top. jack |
|
| Author: | TonyKarol [ Sat Oct 06, 2007 12:54 am ] |
| Post subject: | |
I now shellac the area, but found that it only stained on red and engleman ... it sanded out of cedar and sitka before I sealed, at least with the brand I use. no longer an issue with sealing the area and the channel. |
|
| Author: | jack [ Sat Oct 06, 2007 12:58 am ] |
| Post subject: | |
This wasn't the first time that I have used CA for the rosette , but it was the first time it yellowed. The top was red spruce. I should have sealed with shellac. Thanks again for all the help, jack |
|
| Author: | blindreality [ Sat Oct 06, 2007 8:30 am ] |
| Post subject: | |
[QUOTE=Dennis E.]It's not an error, it's a feature. Squeegee CA over the rest of the top to even out the color. I find professional woodworking isn't about how few mistakes you make, but how you cover them up. Nice. |
|
| Author: | Bob Garrish [ Sat Oct 06, 2007 11:32 am ] |
| Post subject: | |
Quite a few guys I know of use CA as a sealer, actually. Just make sure you've got a strong cross breeze from a fan or do it outside or you're going to feel the burn :) |
|
| Page 1 of 1 | All times are UTC - 5 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|