Coating standard: current domestic and foreign wall coating standard

Core tips: at present, the standard of coating detection in China is: synthetic emulsion exterior wall coating GB/T9755-1995; synthetic emulsion interior wall coating -- GB/T9756-1995; GB/T18582-2001 For the exterior wall building coating, people are more concerned about the aging resistance of the coating Because the exterior wall coating is exposed to the atmosphere, it is subject to severe environmental test, and needs to have good aging resistance The national standard test adopts the xenon lamp artificial accelerated aging method to test This method simulates Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Coatings home news: at present, China's paint detection standards are: synthetic latex exterior wall coating GB/T9755-1995; synthetic emulsion interior wall coating -- GB/T9756-1995; GB/T18582-2001 For the exterior wall building coating, people are more concerned about the aging resistance of the coating Because the exterior wall coating is exposed to the atmosphere, it is subject to severe environmental test, and needs to have good aging resistance The national standard test adopts the xenon lamp artificial accelerated aging method to test This method simulates the loss of coating due to the change of weather and environment The current standards are: 200 hours for qualified products; 250 hours for first-class products For the interior wall building coating, people are most concerned about the washability of the coating The national standard also adopts the method of artificial accelerated detection At present, the requirements of the national standard in China are ≥ 300 times In addition, the inspection indexes include the state, construction, film appearance, drying time, alkali resistance, freeze-thaw resistance, temperature resistance and crack resistance elongation of the coating in the container It should be said that the domestic test standard is very low, which is much lower than that of the developed countries For example, the general requirements for aging resistance in foreign countries are more than 500 hours Gb18582-2001 (limit of harmful substances in interior wall coating) 1 The VOC content in the product shall be less than 200g / L; 2 During the production process, it is not allowed to artificially add compounds containing heavy metals, and the total content shall be less than 90mg / kg (calculated by lead); 3 During the production process, it is not allowed to artificially add formaldehyde and its polymers, and the content shall be less than 100mg / kg Home of coatings is specialized in coatings, diatom mud, paint coating, coating technology, fire retardant coating news and coating, diatom mud, paint coating, coating technology, fire retardant coating decoration knowledge and decoration renderings,