Calico Etch AWAY- For Concrete is an ECO-friendly, safe and easy alternative to traditional acid washing. It’s used as a concrete etcher, degreaser, and cleaner. Calico Etch AWAY- is ideal for surface preparation prior to the application of Overlays, Micro Toppings, Spray Decks, Paints, Stains, Sealers, etc. It’s low fuming and water soluble with low odor and zero VOC. Calico Etch AWAY – is biodegradable and safe to use around plants and other vegetation eliminating dangerous toxic fumes and potential acid burns associated with muriatic or phosphoric acid concrete etchers.