What is the reason for the expansion of latex paint iron barrels?

1. Temperature changes. Temperature changes will cause the latex paint barrel to swell. When latex paint is exposed to a higher temperature environment, the solvent in the paint may evaporate and form gas, causing the barrel to bulge.
2. Quality issues. The bulging tank of latex paint barrels is due to quality problems of the latex paint itself. Defects in the latex paint formula or manufacturing process will cause the bottom of the latex paint barrel to bulge.