What are the precautions for curb stone molds

Curb stone mold in the process of use will always encounter some problems, curb stone mold use plastic mold as raw material, plastic mold in the air is easy to be oxidized, oxidation after plastic mold is easy to become brittle, will make the plastic mold damage rate increase, cause unnecessary trouble, at the same time curb stone mold can be recycled more than a hundred times, may appear deformation, so in use the mold next to each other, to prevent deformation. Plastic molds can be recycled after use, reducing costs and resource waste.