Definition - What does Molyglass PTFE mean?
Molyglass PTFE is a mixture of two materials which are widely used in the manufacture of seals and gaskets used in the petroleum industry and in many other industrial applications. PTFE represents Polytetrafluoroethylene, which is a synthetic polymer also known as Teflon. Some of the sealing tools that are prepared using Molyglass PTFE materials include O-Rings, Vee Packings, BOP seals, wireline and slickline seals.
Petropedia explains Molyglass PTFE
Molyglass is widely used in the manufacture of sealing equipment and assemblies because it provides high pressure seal integrity to the molyglass seal stack. Another material which is similar to Molyglass and provides good amount of sealing is PTFE or Polytetrafluoroethylene. This sealing material is hydrophobic which means that any sealing equipment made from this material cannot be made wet by water or water containing substances. Both of these materials provide good resistivity to reactions and corrosion caused by chemicals and can be suitably used in very harsh environmental conditions.