Does the Flex Saline or Gel sensors corrode like in EPOC+ saline sensors?

Gel tips don’t corrode at all – the base material is pure sintered silver/silver chloride. You will need to wash out the remaining gel between uses. The sensors will last indefinitely. The Flex saline also uses a new process where we electroplate the contacts with silver/silver chloride. This is more resistant for corrosion and so far there is no sign of corrosion after several months of use. The felt pads are also much easier to remove between uses, which completely eliminates corrosion for EPOC+, so any corrosion problems with Flex is not expected.