To clean rust out of a composite wood deck, you just need an effective way to get the iron oxide residue off its surface. The cleaning agent you use should depend on the severity of the stain.
To get rid of those telltale watermark rings left by sweating beverages, gently rub some non-gel toothpaste with a soft cloth on the surface to remove water stains from wood. Then wipe it off with ...
Thrilled at the results, tavern owners dubbed the product -- get ready -- Bar Keepers Friend ... I keep it handy in my laundry room to remove rust stains from the inside of my clothes washer.