Is it okay to use ice melt on trex decking?
Answer The short answer: “Yes”, based on their care & cleaning guide, found at: http://www.trex.com/care/cleaningguide.aspx I would be more concerned about the effects that ice melt (typically calcium chloride or rock salt) may have on the metal fasteners & structural components used on the project. Only stainless steel has the guts to stand up to salty conditions, but if the use of ice melt is restricted to places like steps, for example, and you make sure that in that area the fasteners (nails, screws, bolts, washers, nuts–anything metal) are stainless steel you shouldn’t have any problem; when the danger of freezing is over, it would be a good idea to wash the area thoroughly to remove residual chemicals). Restricted to the area where ice melt will be applied, the higher cost of the small amount of stainless won’t hurt your budget and you get the extra benefit of avoiding the rust stain you’d get when the ice melt attacked the iron in even galvanized steel. Write again if you have
