Paint adhesion testing shows how well a paint or coating holds to its substrate. Most methods cut a cross-hatch or X pattern through the coating and pull tape across it, like ASTM D3359 and ISO 2409. OEM methods add knife cross-hatch, dime scrape and water jet tests for painted plastics and coated trim. Below are the paint adhesion methods we run at our A2LA-accredited lab. For how coatings hold up to stone impact, see our chip resistance guide, or send your spec for a quote.