Pond Shield's Surface Prep is designed to clean calcium deposits off of concrete and other substrates prior to the application of Pond Armor Liquid Epoxy Liner. A much safer alternative to muriatic acid, this formula dissolves carbonates which hold scale and other deposits in a mass. Once dissolved, these can simply be rinsed away.

Designed to be used without diluting. Can be poured directly on the surface or sprayed on with a spray bottle. 

Proudly made in the USA!