My deck has 3 wks installed. All good until this morning when carefully moving a polyethylene chair it left several scratches on it.How can I fix it?

Hello, and thank you for choosing Trex. If the Trex deck boards were scuffed there would be no fix for this. However please note some blemishes can be resolved with cleaning as it could simply be some sort of color transfer. In this case Trex recommends cleaning the area with warm soapy water using a mild dish soap such as Dawn and scrubbing with a soft bristle brush then rinsing. If that is unsuccessful you can also try cleaning the area with white vinegar and a soft bristle brush and rinsing. If the area is scratched vs. scuffed then this can be easily fixed with a hair dryer or heat gun. Trex recommends waving the heat of the heat gun/hair dryer back and forth constantly over the scratched area (please do not hold the heat of the gun stationary) and to stay a few inches away from the deck surface and you should start seeing the area blend on its own reducing the appearance of the scratch. I hope this helps! Thanks, Tori - Trex Customer Care Team