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Characteristics of encapsulating resins

Characteristics of encapsulating resins

At Uniones Adhesivas we are experts in adhesive solutions. We are present in most industries, and for this reason, we have a high knowledge of adhesives and resin encapsulants.

These products are nowadays applied in different sectors, as they are often used in the manufacture of electrical resistors, voltage regulators, transformers and many other types of electrical and electronic circuits.

In this article we will classify the different encapsulating resin systems. As experts we always rely on the design need and customer's requirement. Our products offer a variety of potting application options, including use in ignition coils, motor control modules, transmission control modules, sensors, power supply units, transformers and other electrical/electronic equipment.

When classifying these types of products, due to their characteristics, we classify them into three types: epoxy, silicone and urethane products.

Epoxy products

An epoxy resin is a thermosetting polymer that hardens when mixed with a catalyzing agent, the most frequent ones are the result of a reactionCharacteristics of encapsulating resins between epichlorohydrin and bisphenol A.

Epoxy products have a high resistance to thermal shock, their application has a high tolerance to high temperatures, in addition to a high resistance. These products, free of toxic materials, also have a versatility that allows them to be supplied in a wide range of applications for encapsulation and gluing in both electrical and electronic processes.

Their durability and chemical resistance is also remarkable, which helps them to be perfectly suited to different applications with diverse requirements.

That said, there is a wide range of epoxy products, such as extremely flexible or very rigid, filled or unfilled cast materials, which are thermally and/or electrically conductive and flame retardant.

Silicones

Characteristics of encapsulating resinsSilicone is an inorganic polymer derived from polysiloxane and in addition to being an Eco-friendy product it offers us the possibility to work with it in a temperature range from -75°C to +200°C.

We normally use silicone products to protect electronic components and modules in high temperature situations and with permanent flexibility.

At Uniones Adhesivas we offer a wide range of silicones. Our most popular offerings are platinum-cured or condensation-cured soft silicones, which can be supplied with or without transparent filler.

Urethane polymer

These resins are an industrial product and their hardness and elasticity properties can be altered, but once they have settled into their final form, they do not return to their original shape.

Urethane polymer is a great alternative to silicone, as long as the application does not require high temperature resistance. In fact, we have found that the potting of electronic components with urethanes works best at low temperatures. Characteristics of encapsulating resins

Urethanes do a great job of protecting stress-sensitive electronic devices. In addition, their properties prevent water from seeping in, better protecting electronic equipment.

At Adhesive Bonding we have a wide offering of urethane polymer products, from soft gels to semi-rigid casting materials.

Finally, after this review of the types of encapsulating resins we can only remind you that if you need help in choosing this type of products do not hesitate to contact us. As experts in adhesives, we can offer you personalized advice that will solve any kind of doubts you may have.

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