Benefits of polyurethane (PUR) potting for electronic modules:
Optimal protection: Polyurethane potting compounds form a dense, seamless potting around electronic components, providing exceptional protection against:
- Moisture: PUR acts as an effective barrier against moisture, which can lead to corrosion and short circuits.
- Dust and dirt: Contaminants can affect the function of electronic components. PUR prevents the ingress of foreign particles.
- Mechanical stress: Shock, vibration and impacts can damage sensitive components. PUR offers excellent damping properties.
- Temperature variations: PUR potting materials are typically resistant to a wide range of temperatures, protecting electronics from both overheating and cold conditions..
Electrical insulation: PUR is an excellent insulator, effectively preventing short circuits.
Chemical resistance: PUR compounds are resistant to a wide range of chemicals and provide reliable protection against corrosive substances.
Precise customisation: By selecting specific PUR systems, the characteristics of the material can be precisely adjusted to the requirements of the application.
Processing: PUR potting can be applied easily and accurately, including through automated dispensing and mixing systems.
Weight: PUR foams are lightweight and do not add significantly to the overall weight of the final product.
Thermal insulation: PUR potting materials provide excellent thermal insulation and can help reduce the operating temperature of electronic components.
Shock absorption: PUR foams effectively absorb vibration and shock.
Cavity filling: PUR foams completely fill cavities, providing a stable and secure environment for electronic components.
Application Examples:
Electronics in harsh environments: PUR potting compounds protect electronic components in demanding conditions with high humidity, dust or strong vibrations - for example in the industrial or automotive sector.
Printed circuit boards (PCBs): PUR potting compounds protect printed circuit boards against corrosion and mechanical damage.
Sensors: PUR potting protects sensitive sensors from external influences, ensuring reliable performance.
Batteries: PUR potting shields batteries against moisture and mechanical stress
Function and Design
Dosing components: High-precision pumps meter the two main PUR components - polyol and isocyanate - in exactly the right ratio.
Static mixers ensure that the components are mixed homogeneously at molecular level, giving a consistent reaction and optimum properties in the final product.
Mixing head: The mixing head is the heart of the system. This is where the two components are intensively mixed just before being discharged through the nozzle.
Control and Regulation Technology: State-of-the-art control systems allow precise monitoring and adjustment of all process parameters such as metering volume, mixing ratio and cure time.
Foam sealing: Manufacture of high precision seals for the automation, medical and railway industries.
Precision: High dispensing accuracy and optimum component mixing.
Flexibility: Adaptable to different PUR systems and part geometries.
Efficiency: High production speed with minimal waste.
Quality: Consistent results and superior product quality.
Environmentally friendly: Reduced waste and use of environmentally friendly materials.
The Advantages of PUR Two-Component Systems
- Fast curing for efficient production processes.
- Strong adhesion to various materials.
- Flexible customization through specific formulations.
- Easy application in diverse manufacturing processes.
