[Cornercarverfan]

Good day Ed,

Applying a “ceramic coating” to a painted substrate, the intended use, serves three purposes. First, it levels the paint filling extremely fine blemishes and flaws, allowing for a greater level of gloss. Secondly, the protective properties, help minimize scratching. These products will not always protect, meaning, the product will protect from light scratching from improper washing and drying techniques as well as a slight bump from someone in jeans brushing against your car in a parking lot. Ceramic coatings will not protect from rock chips (more on this later). I regularly apply ceramic coatings to paint, glass and wheels. This helps with overall cleaning, reducing the amount of brake dust that sticks to wheels, and how much garbage sticks to the paint.
Does this work? To an extent, yes. Is it the end all, be all? No.

It is my understanding the poly windscreens for our cars come with an anti-scratch coating already. Without performing firsthand testing, I would guess this would inhibit the proper bond of Ceramic to the windscreen. An alternative to expensive ceramic coatings, a maintenance spray for ceramic coatings would make quick work of dust, dirt, bird droppings, etc, while leaving a super slick surface behind. I can recommend some products if you prefer.

If you are interested in taking an additional step to protect your poly windscreen, I would like to introduce you to a product called ClearPlex. Think of this as paint protection film for your windscreen. This IS designed to prevent scratching, marring and rock chips, as it works to dissipate the energy of the stone across the entire windscreen. Again, if the windscreen manufacturer has the screens coated, this may affect the longevity of the installation overall.

I hope this answers your questions. Feel free to ask away if you have more questions.

Justin