GHOSTSHIELD ECO-ETCH 1001: An eco-friendly, acid-free concrete etcher and cleaner. Available in an industry leading, concentrated formula. AN ACID-FREE ETCHER: Eliminating the need to use muriatic acid to etch concrete, the 1001 safely cleans and creates an effective surface profile by opening the substrates pores. This powerful, 100% biodegradable concrete cleaner and etcher has absolutely no acids, solvents, or VOC's. Specially formulated to clean, brighten and etch concrete without any harmful effects. SAFELY CLEANS WITH NO ODOR: Easily applied with a sprayer and flushed with clean water, the 1001 can be used indoors and outdoors on new and old concrete, brick and masonry. No neutralizing is required after using this product. CLEANS & BRIGHTENS: This ultra-safe solution will outperform traditional acid-based cleaners and leave concrete cleaner, lighter and brighter than the day it was poured. No harsh odor or smell. Shipped concentrated, this product can be diluted with water for a light cleaning or used at full strength for a heavier etch.