Geekay Cement Cleaner ACID BASED CONCRETE CLEANER, REMOVER AND ETCHING AGENT Geekay Cement Cleaner is a concentrated concrete cleaner that penetrates to break up and dissolve lime deposits, scale, rust, algae and stains Geekay Cement Cleaner is used in the scale removing process in sewerage plants, water treatment facilities, etc. It is also useful for the removal of concrete droppings from brickwork and concrete surfaces and safe to use on wood, glass, plastics and rubber