Halocarbon 4.2 oil is a low molecular weight polymer of chlorotrifluoroethylene (PCTFE). This inert oil is manufactured by a controlled polymerization process and then is stabilized to give it some very unique properties.
Halocarbon 4.2油是一种低分子量的三氟氯乙烯聚合物（PCTFE）。 该惰性油是通过受控的聚合过程制得的，然后经过稳定处理，使其具有一些非常独特的性能。
This oil is safe, nonflammable, and chemically inert – safe for oxygen, chlorine and most reactive gas services. It has good lubricity, high thermal stability, and low compressibility.