Gtechniq C1 Crystal Lacquer 30mlUp to 5 years durability Crystal clear finish Easy application Why Use Gtechniq C1 Crystal Lacquer? C1 is extremely easy to apply and ideal for someone new to applying ceramic coatings, or for someone who wants a coating that is durable, but not too much hassle to apply. With good gloss retention, C1 Crystal Lacquer becomes the functional surface of the cars paintwork, and if applied by a Gtechniq Accredited Detailer comes with a 5 year guarantee. C1