Koch Chemie Finish Spray Exterior is an all-round quick detailing spray with limescale remover, suitable for use on paintwork, glass and plastics. Finish Spray Exterior or FSE as it's know as has a special formula which will remove stubborn limescale stains with ease without leaving any residue, making this one tough detailing spray. Finish Spray Exterior cleans, maintains and preserves in one step leaving a slick and streak free, high gloss finish. Built in limescale remover Streak free Cleans and protects Directions Decant Finish Spray Exterior in to a spray bottle and spray on to the paintwork or areas to be treated and gently wipe off with a clean microfibre towel. Do not use in vehicle interiors or on acid-sensitive surfaces. Do not use on hot surfaces. Before using, check suitability and compatibility.