Wolman® Deck & Fence Brightener Wood Cleaner & Coating Prep :  Use Wolman Deck and Fence Brightener to clean and restore weathered wood, or to prepare new wood surfaces before sealing or staining. Product Type: Liquid Concentrate. Mix 1 part product with 4 parts water. Key Features: Cleans and brightens decks, fences and other weathered wood. Restores the natural, like-new appearance. Removes UV damaged, gray wood fibers, ground-in dirt and stains from mildew and algae on decks, fences and other exterior wood structures. Also removes nail bleed and dark tannin bleed from tannin-rich Cedar, Redwood, Mahogany, Ipe and more. Removes invisible traces of old water repellent on previously coated decks and other wood surfaces. Prepares deck and other new wood surfaces for finishing by opening wood pores for better coating penetration and performance. Eliminates mill glaze from Cedar and Redwood. Non-chlorine bleach formula – will not damage wood's cell structure or leave a bleached out look. Fast-acting, highly concentrated formula -- loosens and lifts dirt, stains and discoloration in just 10 minutes. Clings to vertical surfaces for effective cleaning of deck spindles, posts, railings and lattice. 100% biodegradable – so Deck & Fence Brightener won't harm grass, plants or shrubs. Easy to use - just mix, spray, and power-wash away