Peel Away Brightener/Neutralizer is designed for use on unfinished exterior decks, siding and fencing. Safe for all coatings and treated lumber. Removes tannin and rust stains and eliminates the "mill glaze" on new planed lumber and siding. Reduces the pH levels of the Peel Away Deck Stripper and Restorer. Can be diluted at a ratio of 7:1 and will cover between 1,600 and 2,400 sq. ft. per gallon.