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Encapsulation Resins

Meeting the challenge of challenging environments

Electrolube resins in use.
  • UL approved
  • Potting / encapsulating
  • Sealing and protection
  • Cable jointing
  • Coloured and optically clear
  • Bespoke and ex-stock

Resin systems are designed to protect and insulate printed circuit boards (PCBs) and electronic components from the threats of harsh and challenging environments, including; moisture, vibration, thermal or physical shock and general contamination. By encapsulating the entire device, resins can form a complete barrier against such environments offering superior performance under extreme conditions.

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Potting and encapsulation resins also offer excellent mechanical protection. Mechanical protection can be identified in a number of ways; superior performance is evident in applications involving prolonged exposure or immersion in harsh chemicals, or those exposed to vibrational, thermal or physical shock, for example. The higher level of protection is achieved through the mass of the resin surrounding the unit. This is different for every application however potting and encapsulating resins always provide a far more substantial covering than thatoffered by conformal coatings.

Due to the bulk of material surrounding the PCB, potting and encapsulation resins are commonly two-part systems which when mixed together form a solid, fully cured material, with no by-products. In cases where the conditions are not considered extreme, Electrolube offer a range of conformal coatings which provide a combination of protection in humid and corrosive environments with ease of application. They can be used for complete coverage or selective application onto the PCB, thus minimising the weight added as a result of applying a protective material.

Example of Mixing instructions for Encapsulation Resins

More Information

Encapsulation Resins


UR5125 - High Temperature Polyurethane Resin.

High Temperature Polyurethane Resin.

250G Pack - 5Kg Kit

Product code: UR5125RP250G - UR5125K5K

UR5125 is a two-part polyurethane encapsulation resin that has been primarily developed for encapsulation of electrical components that require high temperature performance. UR5125 has a wide operating temperature range, (-60°C to +150°C) with the flexibility of a polyurethane to allow changes in temperature that afford identical levels of protection to the potted component or unit. It has excellent resistance to salt water, making it an ideal choice for marine applications such as underwater sensors or other seaborne electronics exposed to the elements and its flexibility allows resistance to low temperatures which may be associated with underwater applications.

UR5125 is also highly resistant to most chemicals lending itself to a multitude of applications in the Automotive or Aerospace industries as well as the marine environments.

Key Properties:
  • Excellent high temperature performance;
  • operating temperatures -60°C +150°C
  • Excellent resistance to sea water and good chemical resistance
  • Excellent adhesion to a wide range of substrates
  • Good flexibility even at low temperatures
  • Black Potting Compound / Encapsulant
  • RoHS Compliant

Product data sheets
UR5125 (tds) Download

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