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bleaching wood

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bleaching wood

#1

bleaching wood

two ton tommy

>I just finished bleaching an ash bowl using A and B bleach. Inorder to get the desired color, I had to repeat the process. The instruction say that if you repeat the process that you should coat the the wood with white vinegar. I assume this is to nurturalize the effects of the bleach on the finishing process. My problem is I used white vinegar on the cap and ice cycle made of holly for a christmas tree orniment after double bleaching. It gave them a greenish tint. I don't want that to happen on this bowl. I was wondering if any of you have had experience with A and B bleach and how important that it is use white vinegar when you repeat the process?

Re: bleaching wood

#2

Re: bleaching wood

john Lucas

>Tommy

I have had holly go green from age but haven't tried bleach on it yet. If I turn holly when it's fresh it is usually white but if I let it sit in the shop I get green or gray areas.

Bleach does change some wood to colors that I don't expect. Usually lighter than the original color but not always the color I thought. Osage orange comes to mind. It goes gray.

Re: bleaching wood

#3

Re: bleaching wood

Mike Schwing from Md.

>Here is a bleached white ash bowl. I used the 2 part bleach and bleached this one twice. I did not use vinegar afterwards, only copious amounts of water. The reason I bleached it twice was not for the color as it had reached this alabaster color after the first bleaching. Rather, I discovered that the bleach doesn't penetrate more than a millimeter or two when I resanded to remove the raised grain after bleaching. I have no experience with the vinegar wash but this is still the same color it was when fresh bleached.


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Re: bleaching wood

#4

Re: bleaching wood

john Lucas

>Mike

I've also found that you need to bleach one color lighter than you want because the finish always darkens it a little. I have selectively bleached certain areas when I did sand through the existing bleach. A cue tip works great for this.

Re: bleaching wood

#5

Re: bleaching wood

Duane C.Leach

>The few times i have used the two part bleech I sanded first. Then bleeched to the desired color. Then use the vinager to nutralize and alow to dry overnight.When dry sand with 600 grit to remove the raised grain only. Using this method I have never sanded through the bleeched color.

Hope this helps Duane