Armor All Extreme Shield + Ceramic Tire Coating, 16 oz, it's non-greasy protective barrier repels dirt and road grime from sticking to tires surface. Patent Pending tire coating formula with Si02-based dirt-repelling technology. Fast, easy-to-use aerosol with a multi-directional sprayer applies dirt repelling technology uniformly for a longer showroom shine. Allow coating to dry 1 hour before driving and at least 24 hours to set the ceramic hydrophobic technology.