Concrete floors can be damaged by impact, abrasion and chemicals. Choosing and installing the right coating can ensure maximum performance with minimal maintenance. You must evaluate the floor's condition. Next determine the performance conditions and other needs: Will the floor be subject to chemical exposure, abrasion, impact or heavy loads, or temperature extremes? Also consider aesthetics; installation needs such as schedules, odors and ambient temperature; life expectancy; and economy. Specify the coating type and thickness. Coatings can be classified by thickness, polymer type, appearance and finish. Review material properties and application procedures, and choose an experienced installer.