HG natural stone cement grout film remover is acid free. Therefore cement film and lime film are removed safely from marble and other types of calciferous natural stone.

Directions for use:

• Dissolve half a litre of HG natural stone cement grout film remover in half a bucket (5 litres) of water.
• First wet the surface with clean water and then apply the solution using a floor cloth or mop. Do not treat more than 10 to 15 m²  at a time.
• Then scrub the surface well with a stiff broom or scrubbing brush.
• Leave it to work for 5 minutes and scrub well once more.
• Then remove the solution from the surface with a mop, and mop the floor again with clean water.