The BS EN ISO 28199-2:2021 paints and varnishes - Evaluation of coating system performance in relation to the application process, Part 2: Color stability, hiding power of the process, re-dissolving, lame plating absorption, wetting, surface texture and speckle "standard provides methods for evaluating several key performance of coatings during application. The standard covers tests for coating Color stability, hiding power, re-solubility, etc., emphasizing the effect of lame plating absorption and wetting on the coating effect. At the same time, it also focuses on coating surface texture, speckle and other issues, helping developers and quality control personnel to test these performances, optimize coating products and application processes, and ensure the mass and conformity of coatings.