Here's what is so important to our understanding of acid rain and protecting the paint and reducing or eliminating its effect on the paint film.
• When acid rain lands on the paint film surface, it does no damage! That' s right; it does not hurt it one bit! However..
• The water evaporates from the paint film, leaving behind dry concentrates of the acid compounds, hydrazine etc. We now have a dioxide, or dry substance of the compound. The vehicle is subjected to water in the form of dew, rain, and the like. The acids are no longer dry. Water is made up of two hydrogen atoms and one oxygen atom. Oxygen is an oxidizer. Ozone is an allotropic form of oxygen, an oxidizer.
• The acid compounds start penetrating into the paint film and concentrating more and more each time the vehicle gets wet with plain water. Each time, these acid compounds eat away more of the paint' s resin system, the former and binder of the paint system. If you look at a highly- magnified cut-away of a base/clear-coat paint system, it resembles a sponge. The resin system is what holds the sponge together That is why acid rain damage is seen as an etch or pit. Part of the system has been corrosively eaten away.
Let's now put all of this into perspective:
• Acids are generated by our industrial processes, whether in Calgary, Vancouver or Prince Albert.
• These acids mainly cause paint damage when they concentrate and are re-exposed to water, ozone and heat.
• Simply rinsing a vehicle with deionized water or tap water activates the acid concentrates.
• The acid concentrates eat away the paint, creating discoloring, etches, and pits, which most consumers and even car care professionals think are water spots.
Best to wash your car regularly, weekly at 6th Avenue Car Wash