RESINSHOP

This is the area where you can look at some of the many Polymer systems we sell or manufacture. There are many more systems we sell than the ones on this website, but this is the core and we also can give you the benefit of being able to purchase these Resins direct from our RESIN SHOP.

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Below we have written some factors to be considered in resin selection. This is only basic so please feel free to contact our Technical Team for more detailed advice.

Picking an Encapsulant (Also called Potting Compounds)

Encapsulation is a general term meaning to surround with insulation. The word is often used interchangeably with potting, casting or sometimes over-molding.

Often Epoxy and Polyurethane resins chemistries make them ideal for electrical insulation. Therefore the primary purpose of a resin in an electronic or electrical application is to separate the conducting elements of a component. With this in mind, the following bullet points can steer you in the right direction:

  • Oven-curing resins are generally more versatile, both from a production and engineering viewpoint, having a wider range of viscosity characteristics and featuring long pot life, short cure time and having optimum physical, mechanical and electrical properties.
  • Filled resins offer some advantages over unfilled resins in that they have better mechanical and thermal properties. They do however have a higher viscosity and are heavier. Filled resins are often preferred for general casting and potting applications or where a particular attribute is required, such as high Thermal Conductivity.
  • For severe thermal and mechanical shock stresses a semi-flexible or flexible systems is usually selected although filled rigid systems could also be considered in some cases.
  • Rigid resin systems usually offer better electrical properties and have more stable high temperature properties than flexible systems.
  • Polyurethane resins offer better abrasion resistance but their adhesion is generally lower than epoxy systems, but with new chemistries this is getting better all the time. Also the curing times of Polyurethane's can often be much quicker than Epoxy.