HG strong detergent for natural stone (HG produced 40) is developed to quickly and easily remove grease and stubborn dirt from marble and other natural stone travertine, limestone, granite, terrazzo, solnhofer. It is also indicated to remove protective film and otherwise, such as those generated from produced natural protection films HG (HG product 33/34). Dilute half a litre of product in a bucket (5 l) filled to half its capacity with warm water and apply the solution in abundance with a MOP or cloth. Leave for a few minutes. Then remove the solution from the surface with a rag. Then wipe the floor with clean water.