HG cement grout film remover removes cement film from the face of tiles without affecting the grout. Its reacts chemically with the surface of the grout to harden it. This means that the grout is stronger and more resistant to dirt. Dilute HG cement grout film remover in water. Then apply with a scrubbing brush. Allow a few minutes for the product to work, scrub well and rinse off with water. One litre is enough for a surface area of 20 to 50 m². Use HG porcelain cleaner on floors when cleaning for the first time to remove the very last remains of cement.