Tung Oil / China Wood Oil / Vernicia Fordii Oil Rubber O-Ring & Gasket Resistance Guide

China wood oil, commonly known as tung oil or China wood oil tung oil, is a natural drying oil obtained from the seeds of the tung tree and widely used in wood finishing, varnishes, and protective coatings. This oil polymerizes when exposed to air, forming a hard, water resistant film that protects wood surfaces while enhancing their appearance. In systems where tung oil is present, O-rings, rubber seals, gaskets, and plastic components should be evaluated for chemical compatibility to prevent swelling or degradation of certain rubber materials. Proper handling and storage practices are recommended to minimize irritation risks and maintain product stability.

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