Nano coat is the ultimate easy to use nano-spray-sealant. Is safe for use directly onto surface, ie ( paint work, glass, plastics and alloys) EXTERIOR ONLY. Nano coat can also be used on paint work that has already been protected. Nano Coat delivers an extremely hydrophobic effect. Provides sheeting, gloss and protection for up to 4 months. Directions Simply spray on and rinse off! That easy!