The FINITEC cleaners leave no traces or residue when the sufficient quantity is used. However, several factors like the cleanliness of the mop cover and the floor may affect the effectiveness of the cleaner. The mop cover should be washed before its first use. Never use fabric softener. The fabric softener leaves greasy residue on the mop cover that marks the floor. Always use a clean mop cover. The mop cover must be changed every 250 to 300 square feet or when it is saturated with dirt or cleaner. All-purpose cleaners leave residue that must be removed in order to clean properly. Use FINITEC Surface preparation (do not use on ceramic and natural stone) to remove oily residues left by these cleaners and then use FINITEC cleaners. For more details, please refer to the “Maintenance Tips” page.