Corrosion testing is a frequently used important method to test the durability and resistance to weathering of coatings. To mark the right scribe is more than important to get reliable results. Get insights here.
The first impression, aesthetics, that's the reason to sell a car. Therefore the paint appearance on a car body needs to be extremly perfect. Mottling was until today just a visual evaluation. But only when phenomena can be objectively measured can one control and optimise it.