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We have Trex Deck on a screened in porch. I resorted to sanding a couple of spots to get rid of stains, left when the cat upchucked his food. Now those spots are darker than the rest of the flooring and I can't find anything to bring it back to normal color. Stain and color pens just tend to darken it more.

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Linda I don't see a picture but it sounds like what you are experiencing is that the rest of your deck has faded slightly. Meaning if you leave the sanded area alone for a while it will probably become close to the same color. I wouldn't sand for these kind of problems too - a very light power wash would have done. – DMoore Feb 27 '14 at 17:28
Thanks. That makes sense. – Linda Mar 12 '14 at 1:28
D. Moore: You are correct. We recently used our pressure washer on the deck and the area where I sanded is barely noticeable. Thank you. – Linda May 17 '14 at 21:04

2 Answers 2

If you haven't sanded through the color topcoat and into the base material, try one of those automotive "miracle" formulas that restore vinyl tops or the plastic bumper covers on late model vehicles, to like new condition, so they claim. I haven't tried them but it may be worth a shot.

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Thank you. I may check that out. – Linda Mar 12 '14 at 1:28
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The stains are gone. Using a garden sprayer, we mixed half bleach and half water, sprayed the Trex Deck and rinsed well. The place I sanded is barely noticeable too.

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