how do you remove dark stains on decking?

11 Apr 2005
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United Kingdom

I have recently build a raised garden deck and everything had gone as expected. All that was left to do was before I sealed the decking, was to put some end grain preserver on the cut ends of the decking. I have since done this, but I now have several dark stains on the decking which are really noticeable.I guess the stain penetrates right through the wood but Is there anyway I can get the wood back to it original colour, or make it look not so noticeable??
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is it the same colour as the decking preservative, and just looks darker as its newer?
Hi thermo

Its blue in the container, but it eventually dry a green colour. The decking was already treated when i purchased it, but the decking is more of a pine colour, so after this preserver went on it does stand out quite a bit now. Its been just under a week since i did it, but i wouldn't say its mellowed that much yet.
if its a different colour its going to take quite a while to mellow, but once a few weeks of sun gets on it it should fade
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