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Topic # 205004 26-Oct-2016 13:14
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Hi There!


We have a fence that over time has grown green stuff on it. 


There is some debate as to whether it's paint or stain, but we think it's paint. 


I believe before repainting it, we need to get the green stuff off it. 


What's the best (and easiest) way to get that green stuff off? 








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Click to see full size




Also the neighour is going to repaint their side and is going to hire some form of paint sprayer, and has offered for us to share the cost, and we can do our side, but I am unsure on how they work, how hard it is, or whether I should get someone in to do it?



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  Reply # 1658140 26-Oct-2016 13:36
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Fence paint is pretty close to a stain anyway.


That is lichen. I still had traces of it with waterblasting it off brick. Horrible stuff. Ended up trying some liquid in the waterblaster to deal with it. Not sure if it really helped or not since you can still see where it was growing - discolored lighter. No idea how paint would go over that remnants of it since I am trying to remove all paint from the bricks that have it on it. Some genius had built the fence here with used bricks and some have white paint on them still.


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  Reply # 1658348 26-Oct-2016 16:37
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Moss and lichen, I agree.




Water blast it with a some finesse and long strokes so as not to damage the wood. I'd recommend Saraclean - the most gentle chemical treatment on the market I think. Let sit on the surface for 30mins before pressure washing clean. $13 for a pack that makes 10l of solution from Bunnings - in the wood stain aisle. Removes moss, mould, and nice and gentle on people and plants. I love it.


On Whirlpool the posters put a lot of faith in Napisan to perform similarly - generally used to clean a deck down before re/staining. A few tablespoons per litre apparently. I need to try it, but have a bunch of Saraclean to get through first.

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