[Greenbuilding] wood vinegar as non-toxic wood treatment

[Brad Guy]

I have samples of Accoya and tried to use it on a deck, however it was impossible to justify the cost. It really does smell like vinegar.
Aware of the thermally treated methods, which are for new woods. Was hoping for something we could apply to salvaged wood, whether soaked or sprayed. 
We could not duplicate a kiln, and although possible to send this wood to one of those treaters, I imagine they want a large quantity and probably charge large sum, not to mention shipping it there and back.
As I understand it boric acid is great except for the solubility, and it is then the fixing of it that poses the problem..
The old time method of linseed oil and turpentine seems to come up, neither are exactly benign.




 
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The Catholic University of America
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________________________________
 From: christian corson <chris at ecocor.us>
To: Green Building <greenbuilding at lists.bioenergylists.org> 
Sent: Thursday, January 10, 2013 5:52 PM
Subject: Re: [Greenbuilding] wood vinegar as non-toxic wood treatment
 

Haven't had a client that wants to afford it yet. There are other  products on the residential market that are just as responsible but less coin. Like Cambia.
As nice as Accoya is, it is a boutique veneer reserved unfortunately for budgets like the Bullet Center ( not that it was used there) Its hard to convince people to spend the money on plyboo and the like.
Spend the money on the shell, windows, and ventilation then tack on $30,000.00 siding packages.
Sure is purdy tough.
c




Christian Corson
EcoCor Design/Build
ecocor.us
chris at ecocor.us
207 930-5088 



On Thu, Jan 10, 2013 at 5:14 PM, Philip Proefrock <architect at cornellbox.com> wrote:

Are you thinking about things like Accoya treated wood?  They use a
>process called acetylization, which uses acetic acid in a pressure
>treatment application to produce weather-resistant wood; it's not just a
>brush-on process.
>
>Here's an article with some additional information (and a few images,
>including a wooden road bridge made with this wood):
>
>http://www.jetsongreen.com/2011/05/accoya-durable-nontoxic-exterior-wood.html
>
>From what I understand of the process, it needs heat and pressure to
>work; it's not just the presence of vinegar that provides the
>protection.  But this is a pretty water-resistant material once it's
>been treated.  It is used for a variety of exposed purposes.
>
>Philip Proefrock, AIA
>
>
>> Has anyone on this list ever used wood vinegar or any other kind of
>> vinegar as a wood preservative/treatment ?
>> If so, can you indicate the results and where you got it in the USA ?
>>
>
>
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