Trex decks, or composite decks, are advertised for their durability and simplicity when it comes to caring for and maintaining the deck surface, especially compared to traditional wood decks. Trex decks are made of a smooth material that comes in a variety of styles and colors and can be purchased online or in many hardware or home repair stores. While Trex decks are largely considered to be stain resistant, some stains may still occur, such as rust stains when metal items are allowed to remain wet on the deck surface. Removing rust stains from Trex surfaces is relatively simple.
Combine 1/2 to 1 cup dishwashing liquid with warm water in a large bucket or container.
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Dip a soft-to-medium bristle cleaning brush into the mixture and use it to scrub the rust stains. Long-handled cleaning brushes are available at most hardware or home repair stores.
Rinse the area with clean water once the rust stains are gone.
Combine 3/4 cup of bleach and 1 gallon of water in a bucket if the rust stains persist. Use the cleaning brush to apply the bleach mixture to the stains and scrub until the stains are gone.
Rinse the area with clean water.