This is our strongest concentrate. It is a blend of acids and detergents for rapid chemical activity in the removal of concrete, mortar and plaster from concrete trucks, mixing equipment, tools, wheel barrows, forms, floors, bricks and tile surfaces. A perfect multi-functional product for the construction industry. Days of accumulation may be removed in a single application of this product solution. Product application may be repeated for severe encrustations without fear of harm to paint, rubber, or glass. Solution is also useful in the removal of rust and scale from tools. Rinse freely with clear water. Not recommended for use on aluminum surfaces.