Several of our dealers have reported success using Deck O Shield Plus on RicoRock waterfalls and coping after installation and touch up color. Especially need to prolong the life of stronger color patterns like Fieldstone or Western Sandstone. The sealer also protects the mortar joints from having calcium issues. RicoRock cast products are very dense and do not need a sealer. Deck O Shield is available at most Pool Distributors including SCP.