Background
In modern electronic devices, wire harnesses serve as important bridges connecting various electronic components, and their stability and reliability are crucial. The internal wiring harness usually includes multiple wires and related connectors, circuit boards (PCBs) and other sensitive components, which are subjected to various adverse effects from the external environment, such as moisture, dust, vibration, temperature fluctuations, etc. In order to ensure the long-term stable operation of the equipment and protect these internal components from external interference, encapsulation technology has become a crucial solution
Among them, PCB (Printed Circuit Board) is the core part of electronic devices, which not only undertakes signal transmission and processing functions, but also directly affects the stability of the entire system. In order to effectively prevent PCB from being damaged by environmental factors such as moisture, chemicals, and corrosive gases, protective measures must be taken. Traditional protection methods often rely on coatings or packaging, but these methods often cannot achieve ideal protection effects, especially in high humidity, high temperature, and frequent vibration environments. Therefore, choosing an efficient and deep curing potting material has become the key to ensuring the long-term stable operation of PCBs.
Solution:
In response to this challenge, Yilian’s PUR 1680 two-component solvent-free room temperature or heat cured resin elastomer composite provides us with an ideal solution. This material is specifically designed for two-component sealing and potting of electrical equipment. It not only has excellent physical properties, but also ensures the long-term reliability of wiring harnesses and PCBs in complex environments.
Characteristics of PCB encapsulation products inside wire harnesses
▶ High thermal conductivity, low viscosity, strong operability
▶ Excellent low-temperature characteristics and outstanding weather resistance
▶ Excellent electrical insulation and stability stability
▶ Good waterproof and moisture-proof properties, with extremely low water absorption rate
▶ Has good adhesion to most metals and plastics
Application scenarios:
PUR 1680 is an ideal choice for sealing and pouring protection of communication equipment, transformers, control power supplies, ignition controllers, electronic sensors, and other devices. It can effectively protect PCBs from external environmental influences, extend the service life of equipment, and improve the seismic and moisture resistance of equipment, ensuring stable operation in complex industrial and daily use environments.
label: PCB conformal coating, polyurethane sealing adhesive, wire harness internal sealing, Elaplus sealing material
