CLR Brands Automotive Calcium, Lime & Rust Remover Spray is a multipurpose cleaner and auto rust remover designed for tough jobs in the garage and automotive area. This multi-surface cleaning spray is the fast and effective way to clean away calcium and lime deposits and scale, as well as, discoloration from rust stains. Quickly remove calcium, lime and hard water deposits, discoloration, and dirt with this multi-surface cleaner. Use CLR Brands Automotive Calcium, Lime & Rust Remover on engine parts, garage surfaces, and tools. It's a powerful cleaner offering exceptional versatility and economy in one container. This multi-purpose cleaner is EPA Safer Choice Certified, meaning it is recognized as a safer alternative to traditional chemicals. CLR Brands Automotive Calcium, Lime & Rust Remover is an ammonia, phosphate and bleach-free cleaner. Go with the brand that has outdone what stains do since 1982. CLR Brands . Been there, outdone that.