Powdering (chalking) occurs due to the decomposition of the coating under the influence of atmospheric influences and air pollution. All coatings are characterized by chalking if they are exposed for a longer time to these effects than the one required for repair. Chalking can occur if an inappropriate paint choice is made, e.g. interior paint is applied to the exterior, etc. If the coating is a little chalky, remove the parts of the coating that are sprayed by wiping and re-apply the paint. If the chalking is more pronounced, completely remove the coating.