A study of particulate matter concentration released during laser paint removal process on car coated substrate

Abstract

Normalization mass (N) of particulate matter (PM) per one laser shot and 1.0 cm 2 beam size released during the laser irradiation were measured on three different types of car coated substrate samples A, B and C by using DustTrak Aerosol Monitor 8520. The highest N of PM 1.0 and PM 10.0 were 0.0485 mg/shot/cm 2 and 0.0766 mg/shot/cm 2 for Sample A, 0.0890 mg/shot/cm 2 and 0.1728 mg/shot/cm 2 for Sample B and 0.0530 mg/shot/cm 2 and 0.0634 mg/shot/cm 2 for Sample C, respectively. Laser paint removal technique is considered safe than conventional chemical stripping process in term of health implications prevention and safety managements.