Effects of alternating immersion or freezing and thawing on the evaluation of floating dust stain on coating materials

Abstract

There are many previous researches on dirt stuck to building materials. However, it is not clear the influences of the deteriorations on the dirt. In this study, it was conducted the experimental studies on the influences of alternating immersion and freezing and thawing on the evaluation of floating dust stain on various coating materials. And, it was also conducted sensory tests to evaluate the dirt by sense of human. The results show that the property of the coating materials for floating dust stain is not changed by these accelerated deterioration tests.