Long-term functioning connections require effective protection of electronic and electromechanical components. It is crucial to shield highly complex assemblies from adverse environmental influences - this makes the choice of a suitable protection process elementary.
As a professional EMS service provider, we are familiar with the high requirements for coating electronic components.
Thanks to our 40 years of experience and expertise, we can develop innovative and functional protection processes for your products - always individually configured for your needs.
Advantages of protection methods in electronics
- Effective protection against environmental influences
- Improvement of electrical insulation
- Vibration protection during transport and use
- Protection against damage during installation
- Flame retardancy
- Safety for man and machine
- Fulfilment of all warranty obligations
- Customisation possible at any time on request
- Increase in the value of your products
Every electronic component needs a protective coating - we can tell you which process is best suited. Because we protect your electronics from external influences! In addition to conventional conformal coating, we at Lacon Electronic offer you state-of-the-art encapsulation and overmoulding processes - in manual production or automated mass production.
The best process for your components
The materials of your components naturally vary and have to withstand different requirements. That's why selecting the right component protection is a key factor for long-term top performance. We determine the right process for you - so that your products function as effectively and for as long as possible.
Our aim is to effectively extend the service life of your sensitive assemblies and electronic components and to optimise them for use in challenging environmental conditions.
To do this, we use tried and tested protection techniques against extreme temperatures, temperature fluctuations, mechanical stress, foreign bodies and moisture. As a competent EMS service provider, we at Lacon Electronic offer various coating options - as a standard service.
Application methods
In the first step, all PCBs are cleaned mechanically to prevent electrochemical migration and loss of adhesion of the coating.
The subsequent protective coating is applied by spraying. The term "conformal coating" is also used when the same coating thickness is applied to multi-dimensional surfaces (components). If components or areas are cut out with millimetre precision, this is referred to as "selective conformal coating". This process is CNC-controlled at Lacon Electronic. We also offer "PCB coating": This is a protective coating that protects printed circuit boards from moisture-induced corrosion and thus maintains electrical conductivity over a long period of time.
Quality promise
The IPC-HDBK-830, IPC-A-610, IPC J-STD-001 and IPC-CH-65B guidelines recorded in the company standard form the basis of our entire coating range. With our coating line concept, your PCBs are coated precisely and to the highest standard, providing the best possible protection.
We seamlessly transfer PCBs produced by us to our in-house conformal coating process in accordance with our proven quality standards - we naturally coat supplied PCBs and assemblies to the same standard. This saves you time and money. Lacon Electronic also offers the perfect protection against influencing factors such as moisture, dust, UV light or acids for your highly sensitive PCB assemblies.
SCS-Precisioncoat
- Combinable spraying and dispensing head system
- Dispensing head for other processes such as bonding, potting and sealing (1 K material)
- Dispensing head equipped with Luer lock system
- Designed as a 5-axis system (x, y, z, rotation up to 360° and inclination up to 45°)
- Position accuracy +/-25µm (axes)
- Monitoring and documentation software
- Material feed via container and/or cartridge
- Quick valve change system
- Offline programming system
Not all encapsulation is the same - depending on the material and process, the protective effect can vary considerably. At Lacon Electronic, we use a modern encapsulation process.
The 2-component material we use is optimally adjusted on our dispensing systems. This set-up guarantees reproducible and reliable potting.
This ensures the functionality of your printed circuit boards and circuits and protects them optimally against external factors such as
Your particular advantage with housing encapsulation: high throughput combined with simple process application - your components only need to have a design that is suitable for encapsulation.
To ensure that your electronic components are optimally protected, we pay great attention to selecting the perfect potting material for your requirements and area of application.
We use the following 2K potting compounds:
Among other things, as a clear material for encapsulating LEDs without changing the light intensity and colour spectrum.
As a specialist in customised cable assemblies, we know exactly how to protect your components from mechanical and environmental stresses in the best possible way.
To ensure the durability of your cable connections, connectors or electronic components, we use a special injection moulding technique: hotmelt moulding.
As a plastic injection moulding process, this technology is particularly suitable for sensitive cable or connector components. This is because comparatively low temperatures, special plastic granules and low pressure are used to gently encase and optimally protect sensitive electronic assemblies.
Mould costs start at around €5,000 and increase depending on the mould size and complexity. This means that far lower quantities are amortised than with the industrial high-pressure injection moulding process.
We vary according to customer requirements
- Softening point
- Flexibility at low temperatures
- Tear strength
- Elongation at break
- Water absorption
- Application temperature
- Adhesion to the substrate
- Viscosity
- Shore A hardness
- Burning behaviour
Your advantages
- Very high protection due to large layer thicknesses (1-3mm)
- Mould protection for e.g. cable/connector transition
- Processing in low temperature ranges from 190 to 250 °C (depending on the workpiece to be overmoulded)
- Direct application - even on sensitive components: e.g. circuit boards, coils
- UV-resistant materials with UL approval
Conclusion
40 years of expertise
Lacon offers customised protection processes for electronic components. The protection solutions offered, including protective coating, encapsulation and overmoulding, ensure effective protection against environmental influences, improve electrical insulation and provide vibration protection.
The applications range from switch cabinet construction to the development of high-quality industrial electronics. The focus is on quality and sustainability, supported by modern machinery. All this with individual customisation options according to customer requirements.
Electronic components are protected by special lacquer coatings - against, among other things:
- vibrations
- Thermal loads (heat, cold)
- Material abrasion (mechanical)
- Corrosion due to moisture
- Dust ingress
- Chemical reactions
- Fungal infestation
- Discharge of current (leakage currents)
In conformal coating, an electrically insulating polymer coating is applied to assembled printed circuit boards to protect them from environmental influences: in particular from moisture, humidity and corrosion.
Electronic components require a special coating if they have to withstand extreme environmental conditions: Normal or large temperature fluctuations as well as wind and weather. Heat and cold can damage unprotected components, which often results in replacement.
Electronic components (e.g. connectors, circuit boards) are protected from adverse environmental conditions by overmoulding: Overmoulded components are more resistant, wear out more slowly and thus ensure a longer service life.
