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Treating wood.
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Jonnyboy



Joined: 29 Oct 2004
Posts: 23956
Location: under some rain.
PostPosted: Fri Aug 05, 05 9:22 am    Post subject: Treating wood. Reply with quote
    

Anyone used an environmentally friendly woodstain/preservative that actually does the job?

Have a large post and rail fence to build near a stream, so getting something that won't leach out is important.

monkey1973



Joined: 17 Jan 2005
Posts: 683
Location: Bonnie scotland
PostPosted: Fri Aug 05, 05 9:31 am    Post subject: Reply with quote
    

Try here

https://www.ecosorganicpaints.com/onlinebrochure.htm

I haven't used them myself (just found them in fact) but they may be worthy of more investigation.

Behemoth



Joined: 01 Dec 2004
Posts: 19023
Location: Leeds
PostPosted: Fri Aug 05, 05 9:37 am    Post subject: Reply with quote
    

To ask another question is tannalised (Sp?) wood environmentally dubious? - i thought new treatment methods/chemicals had been itroduced to reduce leaching.

Lozzie



Joined: 25 May 2005
Posts: 2595

PostPosted: Fri Aug 05, 05 10:02 am    Post subject: Reply with quote
    

I found this: It is billed as an "environmentally advanced alternative to CCA" -

https://www.ptgtreatments.co.uk/ConsumerInformation-TanE.pdf

(here) https://www.ptgtreatments.co.uk/TechnicalInfo.html

The water-resistance seems to suggest that leaching would NOT be such a problem as previously feared?

Bernie66



Joined: 14 Jan 2005
Posts: 13967
Location: Eastoft
PostPosted: Sat Aug 06, 05 7:53 pm    Post subject: Reply with quote
    

Behemoth wrote:
To ask another question is tannalised (Sp?) wood environmentally dubious? - i thought new treatment methods/chemicals had been itroduced to reduce leaching.


Have heard somewhere that there is cyanide or the like in tannalised timber, hence we will not cut it on the timber saw in work-continued exposure to the dust particles etc.

Treacodactyl
Downsizer Moderator


Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism
PostPosted: Sat Aug 06, 05 9:28 pm    Post subject: Reply with quote
    

How long does something like oak or chestnut last without treating? Both are woods renowned for long lasting and it'd be interesting comparing untreated timbers to treated soft wood.

dpack



Joined: 02 Jul 2005
Posts: 46223
Location: yes
PostPosted: Wed Aug 24, 05 8:54 pm    Post subject: Reply with quote
    

oak and chestnut are very long lasting if large section is used . charring is also said to help seal the surface and cut ends against insect attack .oak below ground chestnut above .that isnt cheap though .as to how long , well bog oak is thousands of years old

judyofthewoods



Joined: 29 Jan 2005
Posts: 804
Location: Pembrokeshire
PostPosted: Wed Aug 24, 05 11:39 pm    Post subject: Reply with quote
    

dpack wrote:
oak and chestnut are very long lasting if large section is used . charring is also said to help seal the surface and cut ends against insect attack .oak below ground chestnut above .that isnt cheap though .as to how long , well bog oak is thousands of years old


For oak one must use the heartwood only, as the sap wood will rot quickly and is loved by woodworm. Bog oak lasts long because of the constant wet conditions in oxigen starved water. Its the interface which is most vulnerable to rot, where the timber is wet/dry on and off.
And what about a living fence? Any tree or shrub (but must be same species throughout) can be grown in a dense row, then woven and the intersections made to fuse. Best to choose a species that is relatively fast growing, but not palatable or accessable to livestock. A fast growing willow hedge can be planted in two rows with the gap between filled with earth into which the willow will root and bind the whole together. In Germany they make soundproof walls along motorways like that.
Here a link to a website which shows all manner of grown structures - fences, buildings, sculptures:
https://www.treedome.com/index.html

wellington womble



Joined: 08 Nov 2004
Posts: 15051
Location: East Midlands
PostPosted: Thu Aug 25, 05 10:26 am    Post subject: Reply with quote
    

chestnut used to be grown extensively in kent and coppiced for use as fence posts - as recently as '95 according to my lecture notes on coppicing for that year!

dougal



Joined: 15 Jan 2005
Posts: 7184
Location: South Kent
PostPosted: Thu Aug 25, 05 11:16 am    Post subject: Reply with quote
    

Behemoth wrote:
To ask another question is tannalised (Sp?) wood environmentally dubious? - i thought new treatment methods/chemicals had been itroduced to reduce leaching.


From my local company:
https://www.jacksons-fencing.co.uk/pages/jakcure/process.aspx
"...deep penetration gives lasting protection which allows us to give a 25 year guarantee on Jakcured timber.
Jakcure will not soil hands or clothing and is harmless to man, animal and plant life. Non-inflammable and non-corrosive."

judyofthewoods



Joined: 29 Jan 2005
Posts: 804
Location: Pembrokeshire
PostPosted: Thu Aug 25, 05 10:25 pm    Post subject: Reply with quote
    

For deep penetration you could try an old method which does, however, take a while to prepare your timber, and can only be done if you are going to fell the timber yourself or have it felled. The old method was to cut down the tree, leave the foliage on (so broadleaf trees would have to be felled in the growing season), then secure a preservative drenched rag to the butt and allow the foliage's transpiration to draw the preservative into the timber. The rag would need some outer moisture proof wrapping, and would need periodic repeat drenching. Another method (don't know if it works, but would seem an easier solution) is to leave the tree standing, cut a deep ring around the base and push some rope or rags into the cut and drench those with your chosen preservative. You'd have to do some research on how long, how much and what type of preservative is suitable. In the past, I believe that would have been creosote, though probably made from wood tar, rather than coal tar, which, I was told by an expert, is not quite as bad as coal tar creosote. Hasn't creosote become outlawed?

dpack



Joined: 02 Jul 2005
Posts: 46223
Location: yes
PostPosted: Fri Aug 26, 05 12:14 am    Post subject: Reply with quote
    

wish i said hedge , it does seem a better idea than fence

Treacodactyl
Downsizer Moderator


Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism
PostPosted: Fri Aug 26, 05 5:49 am    Post subject: Reply with quote
    

judyofthewoods wrote:
Hasn't creosote become outlawed?


Not for professional use I think.

I'd also like to vote for a hedge if it's possible. Or some form of cheap fence with hedging planted soon to replace it. I'm very impressed with my little hawthorn hedge that I layered after a couple of years and after about three years is a decent size.

Bernie66



Joined: 14 Jan 2005
Posts: 13967
Location: Eastoft
PostPosted: Fri Aug 26, 05 9:00 am    Post subject: Reply with quote
    

Most big DIY sheds sell a "creosote substitute" which is virtually the same thing.. I lie fence posts in a bath of "creosote" for 48 hours before using them, messy but it seems to be effective.

dpack



Joined: 02 Jul 2005
Posts: 46223
Location: yes
PostPosted: Tue Nov 22, 05 6:09 pm    Post subject: Reply with quote
    

pallet fence with suitable planting to replace it ?

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