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| Tips for hiding/removing silica? https://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=42098 |
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| Author: | meddlingfool [ Mon Dec 02, 2013 7:29 pm ] |
| Post subject: | Tips for hiding/removing silica? |
I've got a rosewood guitar with quite a bit of white silica. Are there any tips for either removing it or covering it up? I think I read something once about using acetone, but don't really want to fudge a closed bound box.... |
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| Author: | Colin North [ Mon Dec 02, 2013 8:19 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
I've successfully used a sharpie before Z-Epoxy. |
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| Author: | Eric Reid [ Mon Dec 02, 2013 8:35 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
If that's Indian Rosewood, I'm not sure that the deposits are silica. Whatever they are, they accept dye very readily. Just wiping the surface with a cloth pad moistened with denatured alcohol should do the trick. The pad will pick up the color from the wood, and stain the deposits to match. Stay away fom the purflings if you can. A Q-tip with alcohol works well for detail work. If it's Brazilian, you're out of luck. The deposits in Brazilian behave more like silica--no stain will touch them. You can dig them out with a needle. You can use a dark finish. You can explain that this is a natural distinguishing characteristic of Brazilian Rosewood. Charge extra if you like. |
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| Author: | meddlingfool [ Mon Dec 02, 2013 9:15 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
It's eir rosewood. Would isopropyl function as well as denatured alcohol? |
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| Author: | James Ringelspaugh [ Mon Dec 02, 2013 9:46 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
Muriatic acid will likely dissolve it... I believe it's likely calcium carbonate or limestone, not silica. Lemon juice might even work. Or dig it out with a pick and pore fill with a dark filler. |
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| Author: | meddlingfool [ Mon Dec 02, 2013 10:25 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
Could well be. I've heard it referred to as silica, so just regurgitating... |
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| Author: | jsmith [ Tue Dec 03, 2013 12:39 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
I agree with James. Most likely calcium carbonate. I know some go the chemical route to dissolve it, but I've always just used the more labor intensive method. Picking it out with an Exacto knife with a new #111 blade, then blowing or vacuuming off the surface. |
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| Author: | wbergman [ Tue Dec 03, 2013 7:04 pm ] |
| Post subject: | Re: Tips for hiding/removing silica? |
Only a little experience, but I was working with some teak. I resawed some boards and set them aside. White stuff oozed out of some pores after a day. In this case, it came clean with a rag and water, so I think this was some kind of sap. Point is, your spots might be anything. So, try everything, starting with the simplest, i.e., water. |
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