Best Spray Ceramic Coatings

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Set expectations on durability first, because that is where these products are most often oversold. A spray applied silica coating is a sealant in a bottle, and honest durability is measured in a handful of months rather than the years quoted for a professionally applied coating, so plan on reapplying at least once or twice a year and judge a product on how well it behaves over that window rather than on the number in the marketing. What you gain is a hydrophobic surface that sheds water, resists water spots, and makes the next wash faster, achieved in twenty minutes rather than a full day. Preparation decides the outcome more than the product does: the paint must be washed, decontaminated of iron and tar, and completely dry, because anything trapped under the coating is sealed in for its lifetime. Application is unforgiving of heat and sun, so work in shade on a cool panel, spray one panel at a time, spread with one towel, and level with a second before it flashes. Bottle sizes in the 8 to 14 ounce range cover several full applications, so coverage per car is the number to compare, not price per ounce. These sprays also work well as a topper over an existing sealant or wax to extend its beading.