Application background: PCB protection challenges in the era of automotive electronics
With the rapid development of intelligent driving technology, automotive electronic systems are undergoing a comprehensive upgrade from traditional mechanical control to intelligent and digital direction. Among them, the Hand Off Detection Sensor, as a key component of Advanced Driver Assistance Systems (ADAS), plays an important role in monitoring whether the driver has released the steering wheel and ensuring driving safety.
However, these precision electronic components face multiple challenges in practical applications:
Strict environmental conditions: The interior space of the car is narrow and exposed to complex environments such as vibration, high temperature, humidity, salt spray, etc. for a long time;
High reliability requirements: Sensors, chips, and circuits on PCB (printed circuit board) must maintain stable performance under extreme working conditions;
Lightweight and space limitations: Adhesives need to balance sealing, fixing, and shock absorption functions while avoiding additional weight or space occupation.
For this scenario, PUR 1680 polyurethane adhesive has become the preferred solution for automotive electronic PCB protection due to its excellent comprehensive performance.
Solution – PUR 1680 polyurethane sealant breakthrough advantage
PUR 1680 A/B is a two-component solvent-free room temperature or heat cured resin elastomer composite used for two-component sealing and filling. The raw materials are free of heavy metals, environmentally friendly, and have a wide range of process operability. The finished product has high physical properties and good adhesion to the substrate. It can be cured at room temperature or by heating, and can be deeply cured. The two-component mixture has good fluidity and excellent flexibility after curing. It is used for casting and sealing of communication equipment, transformers, control power supplies, ignition controllers, electronic sensors, etc.
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
With the development of the automotive industry towards greater intelligence and safety, the requirements for core components such as electronic steering wheel and hands-free sensors are also increasing. By selecting appropriate packaging materials reasonably, many potential problems can be effectively solved, helping enterprises stand out in fierce market competition.
Tags: Sensor PCB Protection · Steering Wheel Hands Free Sensor PCB Protection · Polyurethane Encapsulation Adhesive
