If your deck is old and weathered, all you need to get rid of that dirty gray look is Thompson's® WaterSeal® Deck Wash. It's easy—no scrubbing, no waiting. Just spray on, rinse off with a hose and in minutes you'll see the gray weathered look disappear. Prepares the surface for continued protection.
Makes weathered wood look new.
Removes stains from dirt, mildew, algae and fungus.
Use before waterproofing on: decks & fences, outdoor furniture, exterior wood, wood plastic composite decking.
Use if you need to remove stains from dirt, mildew, algae & fungus and there is little or no trace of a residual finish.
Approximately 250 sq. ft. per gallon depending on the condition and the porosity of the wood.
A trial patch is recommended before starting. If the surface has been previously treated with a waterproofer, splash the surface with a glass of water. If it beads, dampen the wood slightly before using Thompson's® WaterSeal® Deck Wash.
Remove all deck furniture and decorative items. Do not allow product to come in contact with painted or finished surfaces that you do not intend to restore.
Saturate the ground around plants and shrubs with fresh water prior to application. Then cover all plants and shrubs to protect them from overspray. Uncover promptly after use.
Wear protective gloves and old clothing. Do not allow product to come into contact with clothing, carpet or fabric, as discoloration can occur. When spraying, use eye protection.
The longer Thompson's® WaterSeal® Deck Wash is allowed to work, the lighter the wood will become. Do not allow Thompson's® WaterSeal® Deck Wash to remain on the surface for more than 30 minutes, as an uneven appearance may result.
Thompson's® WaterSeal® Deck Wash may slightly darken Redwood or Cedar. To brighten wood after cleaning with this product, use Thompson's® WaterSeal® Deck Cleaner & Brightener.
Plan the application: for horizontal surfaces, work backwards so that you do not walk on the surface being treated. For vertical surfaces, work from the bottom up.
Exercise caution when working on wet surfaces.
Thompson’s® WaterSeal® Deck Wash can also be used on exterior painted surfaces to remove stains from mildew if diluted 50/50 with water.
Add contents of container to a plastic bucket or plastic pump-up sprayer. Do not use a metal container.
Apply Thompson's® WaterSeal® Deck Wash liberally with a brush, roller or sprayer. If you are using a pump-up sprayer, use a coarse spray. In areas with heavy discoloration or dirt, apply a second coat and brush lightly with a broom. Immediately and thoroughly rinse any overspray or accidental spills with water, especially on metal to avoid pitting or discoloration.
Wait 5-10 minutes and then thoroughly rinse the surface with a garden hose, removing all residue. After rinsing the surface, be sure to saturate the ground around plants and shrubs with fresh water.
Rinse equipment and brushes thoroughly with water.