Since its founding in 1939, PROSOCO has developed products for giving new life to historic buildings and monuments; maintenance and protection of existing buildings; and the cleaning and protection of new masonry and reinforced concrete structures. PROSOCO Sure Klean removes excess mortar, clarifies mortar joints,removes decades and even centuries of carbon build-up. You will find it brings out the true, intended beauty of masonry buildings. Commencement Bay has a wide ranging inventory of PROSOCO products in our Tacoma warehouse.