NyeBar® - Barrier Films
Recommended whenever electrical corrosion and reliability or
lubricant migration are a potential problem, NyeBar®
fluorocarbon barrier films control oil creep and prevent
corrosion. Non-wettable with low surface tension, they act as a
dam around the lubricated area to prevent oil migration and
subsequent contamination of nearby, sensitive components.
For
example, small amounts of oil or grease may be used to lubricate
rolling element bearings in a small electric motor in an
automotive application. A thin coating of NyeBar® around the
shaft, where it exits the bearing, prevents migration of the
lubricant, which otherwise may foul nearby electrical contacts.
In addition to controlling oil creep, a thin coating of NyeBar®
is also used to protect printed circuit boards by repelling
moisture, oil and attendant dust entrapment.
Applied by dipping, spraying, or brushing, NyeBar® can be used
to coat a variety of materials including copper, aluminum,
steel, tin, plastic, and glass. It can be formulated to match
desired rates of evaporation, to meet ultraclean electronics and
aerospace requirements, and with an added UV tracer, to
facilitate quality inspection.