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Medical‑Grade Magnesium Oxide: Indispensable Functional Additive for Medical Butyl Rubber Stoppers

Magnesium Oxide is an essential functional auxiliary for the production of medical halogenated and brominated butyl rubber stoppers, widely used in sealing stoppers for infusion bottles, medicine bottles and syringes. Medical rubber stoppers demand ultra-high purity and safety, and high-purity activated Magnesium Oxide meets strict medical packaging standards with zero heavy metal precipitation and non-toxic properties.

In production, it acts as an efficient vulcanization accelerator and acid scavenger. It cooperates with stearic acid to optimize vulcanization efficiency, enabling uniform molding and excellent tightness to prevent liquid leakage. It neutralizes acidic substances generated during vulcanization, avoiding rubber corrosion and liquid contamination to guarantee medication safety.

Moreover, medical-grade magnesium oxide greatly improves the stopper’s aging resistance, disinfection resistance and deformation resistance, adapting to high-temperature sterilization and extending drug shelf life. With excellent compatibility and stability, it has become an indispensable material for global medical rubber stopper manufacturing.