Thanks – VS1 is a spray sealant that can be used on top of a coating or as a stand alone product. When used on top of a coating, it will add additional protection to maximize the life of your coating and also enhance water beading and gloss as these properties may begin to fade over time. VS1 can be applied as frequently (say after each wash) or infrequently as you’d like. Let me know if you’ve got any other questions.