Balancing Plasticizer and Support in PVC Formulation The loss of support from excessive plasticizer is a classic trade-off in PVC formulation. To regain mechanical strength without fully sacrificing low-temperature flexibility, consider these integrated adjustments: Partial Replacement: Substitute a portion of the primary plasticizer with a polymeric or secondary plasticizer (e.g., DOTP, DINCH). These often offer better permanence and less softening efficiency. Reinforcement: Incorporate low-loa