PressureX 14 Report post Posted April 11, 2008 Ok, so I dont deal with decks, fences, wood in general, but i am curious to find this out from the "wood pros" ;) What is it called when, for instance, the fence posts turn a very very light green / white color (mostly on the bottom half here)? What causes it, and how do you "get rid" of it? It seems to look like discoloration in the wood itself ... just curious. Thanks fellas. Share this post Link to post Share on other sites
0 PressureX 14 Report post Posted April 12, 2008 Nobody knows? I could take a pic ... im just curious. one of you 50 people that looked in here has to know what im talkin about ;p Share this post Link to post Share on other sites
0 Celeste 341 Report post Posted April 12, 2008 Pat, it could be the copper leaching from the wood....fairly common in the new ACQ treated stuff. Pictures would definitely be helpful :) Celeste Share this post Link to post Share on other sites
0 PressureX 14 Report post Posted April 12, 2008 I hope these pics are good enough. I noticed my blackberry doesnt show TOO much detail when sun if fully shining on it, lol. But I hope yall can see the difference. Thanks for killing my curiosity :p Share this post Link to post Share on other sites
0 MMI Enterprises 289 Report post Posted April 12, 2008 My best guess is there is two issues on the white...sprinkler/watering damage is main issue and then sun bleaching. The water leaves minerals that turn white when dry and leach the naturals out. The sun hits the bottom more than the shaded tops. Solution: use oxalic, refeed the wood, and/or change the watering and shading Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted April 12, 2008 Refeed the wood? You mean seal it.... Look, if that is from the pressure treatment, cleaning will help over time...if it is at the bottom, it could be splash up, from rain or a sprinkler take your pick. Also I would two step the cleaning, don't just hit it with acid, that's not the whole process..... Beth p.s. Pressure Washing and Contractor Cleaning Forums - The Grime Scene - FAQ: FAQ’s on Wood Restoration Share this post Link to post Share on other sites
0 PressureX 14 Report post Posted April 12, 2008 Im not really looking into trying to "fix" the issue, im still iffy about wood, and probably won't touch it (even my own backyard, lol) without goin to a seminar or something first. I was just curious what would cause it. Thanks for the awesome replies :) Share this post Link to post Share on other sites
0 MMI Enterprises 289 Report post Posted April 12, 2008 Ok Beth..not "refeed" but rather "feed" that wood after deposits removed! What ya mean "if it is at the bottom"?.. he said it was and the pictures show as such..least on my screen anyways. He aired only his interest in situation so didn't feel a need to describe a whole process...Forget I said oxalic or feeding wood Pat. :) Share this post Link to post Share on other sites
0 PressureX 14 Report post Posted April 12, 2008 Haha its ok. I appreciate the help. I never caught your name either and I've been around this forum for a good bit ... Trying to get to know people. Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted April 12, 2008 Ok Beth..not "refeed" but rather "feed" that wood after deposits removed!What ya mean "if it is at the bottom"?.. he said it was and the pictures show as such..least on my screen anyways. He aired only his interest in situation so didn't feel a need to describe a whole process...Forget I said oxalic or feeding wood Pat. :) Hey the way I look at it, anything worth doing, is worth doing right. ;) Beth Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted April 13, 2008 What kind of chemicals are in your tap water? Whatever they are, are interacting with the pressure treatment in the wood and causing a chemical reaction. The white part is uv bleaching. Rod!~ Share this post Link to post Share on other sites
0 MMI Enterprises 289 Report post Posted April 13, 2008 Then we should address his questions best we can... how do you "get rid" of it? For the white- oxalic acid and feeding the wood some dark stain, or burn it.. :) Share this post Link to post Share on other sites
0 Beth n Rod 1,279 Report post Posted April 13, 2008 You need to wash it, diluted stripper would do the trick, then neutralize it. Then seal it or not as you see fit. An acid bath alone will not ( I don't think) remove the green, and will add to the silver. If it is pressure treatment, you need to draw it out of the wood, thus the stripper. If it is mineral staining, same thing. If you want nice looking wood, 2 step the fence. Beth Share this post Link to post Share on other sites
Ok, so I dont deal with decks, fences, wood in general, but i am curious to find this out from the "wood pros" ;)
What is it called when, for instance, the fence posts turn a very very light green / white color (mostly on the bottom half here)?
What causes it, and how do you "get rid" of it?
It seems to look like discoloration in the wood itself ...
just curious.
Thanks fellas.
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