Nanotechnology Coating for Glass. The easy way to maintain a sparkling clean shower. Repels water and dirt, chemical and scratch resistant, easy and fast to apply. Lasts up to 5 years reducing cleaning time by up to 95%. The kit contains an effective abrasive surface preparation cleaner to remove soap scum and glass contaminations. Therefore it is possible to use the coating on older glass. Covers between 4-6m2 or 36-54 sq.ft.