may 30, 2008 · this was tested primarily to fill gouges or other surface damage to our trex products. It bonds well to trex, although their colors do not match trex precisely. dec 5, 2023 · i'd make a putty out of resin and fine filings from a spare piece of trex. I'd use 80 grit or finer sandpaper for a good result. Fill the holes, let cure, then sand flush. nov 26, 2009 · i have a question regarding the filling of holes in a trex post sleeve. My help got carried away trying to fasten railing to the sleeves and drilled before making sure.
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