Astonish Premium Edition is a wide range of cleansers for various kinds of surfaces and exteriors. Its Ultimate Limescale Remover is formulated in a way that it dissolves the limescale, waste grains, calcium deposits, and rust which can then be washed away with water. With its fast reacting concentrated formula it helps you clean surfaces without harsh scrubbing. It needs to be simply sprayed on affected places, and left there for a while.