Thionyl chloride is also known as sulphuryl chloride, sulphur oxychloride, or sulfonyl chloride. It is a colorless gas with an irritating odor, and is used in a wide variety of industrial applications such as for the manufacture of pharmaceuticals, herbicides, pesticides, as an etching agent for metals, and as a catalyst for organic reactions.
When rubber is exposed to thionyl chloride, the rubber may become brittle and crack due to the corrosive nature of the chemical. In some cases, the chemical can cause the rubber to swell and lose flexibility, which can lead to the rubber failing to form a proper seal. Additionally, the thionyl chloride can cause the rubber to become discolored, which reduces the strength of the rubber.
Markez ® high performance perfluoroelastomer O-Rings (FFKM) offer unmatched value for demanding sealing applications. Produced from nearly identical ingredients as higher priced brands, Markez ® compounds are used for high temperature o-rings and high pressure o-rings and chemical resistant o-rings that deliver similar performance to major FFKM brands, with temperature resistance up to 625oF, at a significantly lower cost. Our proprietary processing allow us to supply seals under an inch in size more efficiently. Introduced exclusively to existing customers over 15 years ago, we now have the experience and capacity to offer Markez ® high temperature o-rings and high pressure o-rings to the world.
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