Skrapprov

Skrapprov is a term used in Swedish-language technical literature to describe a simple surface test in which a sharp implement is drawn across a material to evaluate its resistance to scraping and potential coating adhesion. The word derives from skrapa (to scrape) and prov (test). In practice, skrapprov is used to quickly assess surface durability, adhesion of coatings, or the tendency of a surface to shed material, and is commonly employed in quality control in painting, plastics, and metalworking sectors, particularly in Sweden and other Nordic countries.

The procedure is not governed by a single international standard; instead, there are variations by industry. A typical test involves preparing a sample with the surface finish to be tested, choosing a suitable scraper or stylus, applying a controlled amount of force, and drawing a straight line or multiple passes over a defined length or area. The result is evaluated by inspecting the scraped path for coating loss, plastic deformation, or underlying substrate exposure and by comparing with reference samples or rating scales.

Skrapprov is often used as a quick, low-cost complement to more formal adhesion or wear tests, such as cross-cut adhesion tests, pull-off tests, or abrasion tests. Because procedures vary, documentation usually specifies the tool type, angle, pressure, stroke length, and pass count, enabling reproducibility. The term is primarily used in Swedish-speaking contexts and regional quality manuals, rather than as a globally standardized test category. See also scratch test, adhesion testing, and abrasion testing.