Electrolube UR5044RP250G Blue PUR Potting Compound 250 g

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Electrolube ER2218RP250G Black Epoxy Potting Compound 250 g

Electrolube ER1448RP250G Black Epoxy Potting Compound 250 g

Electrolube UR5097RP250G Black PUR Potting Compound 250 g

Electrolube ER1450RP250G White Epoxy Potting Compound 250 g


An electronic assembly must be protected from hazards such as vibration, shock, heat dissipation, humidity, and corrosive elements.Potting is one way to achieve this level of protection. And there are several good reasons for potting electronics. For permanent protection, an electronic assembly is potted with a compound named potting compounds.Potting compounds are general-purpose types of sealant that can offer environmental, mechanical and physical protection to circuit boards and electronic assemblies.

### In what ways do potting compounds make your life easier?

When hardened and cured, the potting compound creates a solid shell around your electronics, protecting them against thermal or physical shock, moisture, vibration, and other potentially harmful conditions. Furthermore, it reduces the reliance on solder joints in the pins that are connected to the circuit board by taking most of the stress off the pins.On the other hand, the mechanical protection provided by the protective materials allows the components to remain highly functional in extreme conditions. The materials of choice are often thermosetting plastics or silicone rubber gels.A converter PCB is also protected from air leaks by potting, which replaces it essentially with an insulating medium1, preventing arc-overs resulting from overvoltage stress in the power supply, especially in high altitude environments, moisture, dust, and dirt that can reduce insulation between input and output, resulting in tracking across surfaces or reducing insulation.In converters, thermally conductive potting materials reduce hot spots, dispersing heat far enough away from components to level out thermal gradients, reducing component stress caused by temperature differences.Whereas a potted DC/DC converter provides an extended storage time and service life. The materials used in RECOM's products have a ten-year shelf-life and we occasionally get requests for replacement converters for products that were manufactured in the 1990s and have been operational for decades. The longevity of the converter is partly a result of its hermetic seal, which provides a sterile, secure setting within which the converter's electronic components can perform at their best.

### Types of compounds

The potting compounds on the market vary in viscosity, requirements for cure conditions, among other factors. Compounds such as urethane, silicone, and epoxy are widely used in a variety of applications.**Epoxy Potting Compounds**Epoxy potting compounds generally perform as a better adhesive, high-temperature resistance, and chemical resistance. Epoxy systems have better adhesion to a wide variety of substrates and typically do not need primers. They are easy to use and are predictable. They have good high-temperature resistance up to 400°F.**Urethane Potting Compounds** Urethane potting compounds generally have better flexibility, elongation, and abrasion resistance. Since they can have Tg below -40°C they are an excellent selection for SMT PC board potting. Their gel time can be easily changed with an accelerator without changing the properties.**Silicone Potting Compounds**Soft and flexible, silicone potting compounds and encapsulating materials possess a good level of elongation. Aside from being the most versatile material, silicone can also withstand a wide range of temperatures. Most silicone materials are able to operate at temperatures between -100°C and 200°C with a specially formulated silicone potting compound.**Acrylic Potting Compounds** Acrylic potting compounds are UV and heat-hardening materials. Due to their fast hardening, adequate chemical resistance, and clear appearance, they are highly desirable.



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Electrolube Potting Compounds

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