Silica deposits on IRW back

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kiwigeo
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Silica deposits on IRW back

Post by kiwigeo » Wed Nov 05, 2008 7:56 pm

Whats the best way to deal with silica deposits on an IRW back set. Ive heard lemon juice can be used to remove same while others simply pick the deposits out.

Any ideas would be welcome

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Allen
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Post by Allen » Wed Nov 05, 2008 9:08 pm

I've not seen the silica deposits in IRW, but I just built a couple of boxes from some Kwila that was full of white deposits (silica ?). I used some Rosewood stain that I bought for a test on the opportunity grade wood that we all got recently. It worked a treat on hiding the white spots. It might do the trick for you as well.
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Post by Bob Connor » Wed Nov 05, 2008 11:16 pm

Colour them with a sharpie.
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Post by Hesh1956 » Thu Nov 06, 2008 5:38 am

Yep color them with a Sharpie or other similar felt tipped marker - this is what pro finishers do.

Often the deposits are to deep to sand or pick out.

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Post by kiwigeo » Thu Nov 06, 2008 7:33 am

This wood is the same batch of IRW youre talking about.

I dont who came up with the lemon juice idea...we use hydroflouric acid to dissolve silica when pulling palynolgy fossils out of rock samples.

Cheers Martin
Allen wrote:I've not seen the silica deposits in IRW, but I just built a couple of boxes from some Kwila that was full of white deposits (silica ?). I used some Rosewood stain that I bought for a test on the opportunity grade wood that we all got recently. It worked a treat on hiding the white spots. It might do the trick for you as well.

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Post by kiwigeo » Thu Nov 06, 2008 7:34 am

Is the felt pen going to interfere with later french polishing at all?

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Post by kiwigeo » Thu Nov 06, 2008 8:48 am

Allen,

What brand of stain did you use?

Cheers Martin
Allen wrote:I've not seen the silica deposits in IRW, but I just built a couple of boxes from some Kwila that was full of white deposits (silica ?). I used some Rosewood stain that I bought for a test on the opportunity grade wood that we all got recently. It worked a treat on hiding the white spots. It might do the trick for you as well.

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Post by kiwigeo » Thu Nov 06, 2008 9:13 am

Okay I just had a thought..Im going to pumice fill the IRW on this guitar so its likely that bleed out of IRW coour during pumciing will colour 8up the silica deposits. Wha do you think?

Paul B

Post by Paul B » Thu Nov 06, 2008 9:58 am

kiwigeo wrote:I dont who came up with the lemon juice idea...we use hydroflouric acid to dissolve silica when pulling palynolgy fossils out of rock samples.
Hydrofluoric acid? Man, that stuff is scary as hell. You don't want that stuff in your shop, hell, you don't want it in your town/suburb.

I had to write a safety report on that stuff in my last job. I ain't never going near that shit again.

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Post by Allen » Thu Nov 06, 2008 6:22 pm

It's the Watyl brand that Bunnings carries. I just got the smallest can of it. A little goes a long way. It's piss thin and I finished the boxes with some Mirotone after a few days of drying. No problems whatsoever.
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