The prepared waterborne polyurethane PU should be used up as soon as possible. If delamination or deterioration is found, it should be stopped immediately. The production process of our products has been strictly controlled, and the products have passed strict quality inspection before leaving the factory. The specific use method of the product should be determined by the user according to his own equipment and production conditions. Please conduct full tests before using it. The application, use and processing of our products and the products produced by you based on our technical advice are outside the control of our company, and we are not responsible for any adverse consequences caused by improper use.