Muriatic acid Is a 20° Baume (31.45%) hydrochloric acid solution used for cleaning and preparing concrete prior to etching, coating and sealing. Muriatic acid can also be used to lower the pH in pools and spas.
How is Muriatic Acid used to adjust pH of swimming pool water?
Muriatic Acid should be added gradually to lower pH. The amount added depends on pool water capacity and starting pH. Always re-test pH before allowing swimmers to enter pool. Carefully read and follow all label warnings and directions.
How can Muriatic Acid be used to etch a concrete basement floor?
Usually basements cannot be properly ventilated to allow use of Muriatic Acid. Muriatic Acid and its vapors are very corrosive and can damage metal surfaces including heating and cooling systems. Muriatic Acid is also hazardous to people and it must be thoroughly rinsed after use. There are buffered or inhibited acids that are safer for indoor use.
Can Muriatic Acid be used to remove acrylic sealers from cement patios?
Muriatic Acid is not usually effective as a remover for acrylic sealers, or as a paint remover. Whenever possible, sealer manufacturer should be contacted for a solvent recommendation. Sunnyside Xylol often works for removal of acrylic sealers.
Can I use Muriatic Acid as a drain cleaner?
No. Muriatic Acid may damage plumbing systems, and it should not be used as a drain cleaner. Only products labeled as drain cleaners should be used for this purpose.
How do I clean mortar off a new brick wall?
Use a dilute solution of muriatic acid, apply with a soft bristle plastic or rubber brush. Allow a few minutes for acid mixture to work, and then flush with running water. Muriatic Acid is corrosive, follow all label directions and warnings.
Can I put Muriatic Acid in a pressure washer tank?
No. Most pressure washers will be damaged by direct contact with Muriatic Acid. Also be careful of overspray which may damage materials that it contacts.