Mar and Scratch Damage to Auto Body Coatings (image) National Institute of Standards and Technology (NIST) Share Print E-Mail Caption Schematic of the coating layers in a typical automobile composite body. Mar and scratch damages from a variety of object impacts are shown. Credit Eastman Chemical Co./ K. Irvine, NIST Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.