The NZW-II type coating contamination resistance test flushing device is mainly used in the coating contamination resistance test process of architectural coating products and complies with the provisions of the national standard GB/T 9755-2001. The so-called contamination resistance of a coating refers to the difficulty of removing contaminants on the surface of a coating film after it is contaminated by dust, atmospheric suspended matter and other pollutants. The national standard stipulates that fly ash is used as the pollution medium, which is mixed with water and painted on the coating sample; after drying, it is rinsed with water; after a specified cycle, the decrease rate of the coating's reflection coefficient is measured to represent the coating. stain resistance of the layer. This test method is suitable for white and light-colored paints. This flushing device is specially designed and manufactured for the flushing process of this test cycle. It has a high degree of automation and is simple and convenient to install and operate.
GB/T 9755,GB/T9780-2013

