Step 1: Mix HG cement grout file remover with water.
Step 2: Wet the surface with clean water and generously apply the solution with a floor cloth or mop. (Do not treat more than 10-15m2 at once).
Step 3: Scrub the surface with a stiff broom or scrubbing brush and leave to penetrate for 15-20 minutes.
Step 4: Scrub the treated surface again and remove the solution with a mop and clean water.
1L