The choice of stabilizer is not affected by the type or amount of plasticizer present in a formulation.
Two exceptions:
1.With Phosphates and chlorinated paraffins, you will need more epoxy co-stabilizer, and extra phosphite chelator in a mixed metal barium/zinc or calcium/zinc system.
2.Epoxy Plasticizers (epoxidized soybean, linseed oils and tallate esters) are often used in PVC compounds as an auxillary co-stabilizer with mixed metal stabilizer systems. Functioning as HCl acceptors primarily, epoxy Plasticizers enhance the heat and light stability of most mixed metal/phosphite stabilized compounds.
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