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VPI CAST coating system

The VPI CAST coating system is easy to apply and provides maximum design flexibility for coil designs while providing complete environmental protection.

Heat dissipation in circuits potted with Epoxy or Urethane

Thermal conductivity is an important consideration in potting or casting electronic modules containing heat generating components. The heat being generated in operation by the various devices must be dissipated in order not to exceed the maximum operating temperature limit of the most sensitive component in the circuit.

Why do some Epoxy (polymer) Transformer Bushings fail?

We all know that how troublesome it is when a bushing fails on a transformer in the field. In addition to incurring significant costs to replace the bushing, there is the question of the transformer supplier’s reputation as well as being subject to possible penalties imposed by customers suffering power interruptions.

 

The correlation between the chemical composition of the inorganic filler content and the mechanical values of an epoxy system


There are three main factors that would be considered when formulating an epoxy or urethane system for adhesives, potting and encapsulation applications.

Why Fish Eyes develop in an Epoxy or Polyurethane Coating?

When a coating is applied to a substrate that is contaminated with low surface energy particles such as oil, wax, grease, or silicone, fish eyes may develop in the coating as it is applied. These fish eyes are produced because the coating is unable to wet out the contaminated area.

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