Why we must use PVC additive? PVC plastics is used PVC resin heated at 160-190 degrees plastics molding, In PVC resin heating processing, because the high temperatures , PVC resin will decomposited and resulted combustion of plastic, so can not forming plasics direcetly, so in the process of production of PVC plastics, additives must be added in order to ensure produce moldign, and can ensure that plastics are used in the industry meetings the use requirements, such as toughness, strength, fire-retardant properties, processability, etc.