SPEC-CLEAN is a complete heavy duty concrete and masonry cleaner, designed specifically to clean dirt, grime, food, beverage and oil stains from decorative concrete, interlocking concrete paving stones, brick, clay tile and most other surfaces. It is an easy to use, safe, biodegradable cleaner that does not form noxious fumes or damage lawns or flower beds. SPEC-CLEAN is concentrated and can be diluted with up to 10 parts water. Its dilution rate with water determines the cleaning power.