How to prevent powder coating from caking

How to prevent the agglomeration of powder coatings, we must first establish a concept: powder coatings agglomerate at a certain temperature is a natural law. To prevent the powder coating from caking, the powder coating product must be below its glass transition temperature during the whole process of powder coating production, such as grinding, packaging, storage, and transportation. Based on this point of view, the following solutions are taken: 1) In the production of polyester resin, select some alcohol or acid that can increase its glass transition temperature, or reduce the amount of alcohol that can lower the glass transition temperature of resin to increase the glass transition temperature of polyester resin.