Generally can be used, paint if the PU paint, curing agent composition may increase the viscosity, containing the pigment, the filler composition may need to carefully stir well, no effect on the performance, only a few varieties really can not use: gelatinization (PE paint more), discoloration (nitrocellulose paint is more serious), thicker. In fact, the following is very clear that the construction of paint workers, and can not use him to tell you clearly!
Expired paint do not casually throw, this will be on the environment and the surrounding residents have a serious impact on life. If the number can be taken less buried law. If the number of large should be linked to professional processing companies to pay processing. Paint bucket are generally professional recycling and reuse of garbage stations.
If the paint exceeds the shelf life, if you want to use the best first to detect its performance, if the requirements can be extended to the appropriate period of time, if you can not meet the requirements, you can ask the purchase of paint agents have remedial measures, such as confirmation can not be applied, Processing, should find a special acquisition of such chemicals qualified institutions to deal with the aftermath.
Expired paint can not be used, more than the shelf life of the paint, its composition will change, quality and performance will be greatly reduced.