According to the GB/T 5210-1985 standard "Pull-up method for the determination of coating adhesion", this standard is suitable for evaluating the adhesion between coatings and substrates or coatings. A tensile test at a specified speed is used to determine the force required for the coating to break when it is pulled apart, using a unit of kg/cm ². The standard describes in detail the test equipment, the preparation method of the sample, the test conditions and the calculation of the results. The adhesion results of coatings are classified according to the form of damage, such as adhesion damage, cohesion damage, etc., to evaluate the bonding strength of coatings. The test report requirements include details such as Coating information, sample preparation process, and test environmental conditions to ensure the accuracy and comparability of test results.