Coating for industrial control boards

Industrial control boards used in PCB-assemblage en SMT-assemblage operate in harsh environments that often include humidity, dust, chemicals, vibration, and temperature fluctuations. Choosing the right Conforme coating is essential to ensure long-term reliability and performance.

Best overall: polyurethane (urethane) Conforme coating

Polyurethane is one of the most commonly used coatings for industrial control boards due to its strong resistance to chemicals and environmental contaminants.

Belangrijkste voordelen:

• Uitstekend chemische weerstand (solvents, oils, fuels)
• Strong protection against moisture and corrosion
• Good mechanical durability
• Suitable for factory and industrial environments

This makes polyurethane ideal for control systems exposed to industrial pollutants and harsh operating conditions in PCB-assemblage.

Best for temperature and flexibility: silicone Conforme coating

Silicone is another top choice, especially when temperature variation and vibration are significant.

Belangrijkste voordelen:

• Breed temperatuurbereik (-55°C tot 200°C+)
• High flexibility → resists cracking under vibration
• Good moisture and humidity resistance
• Performs well in outdoor or semi-industrial environments

Silicone is often used in industrial automation systems that experience both heat and mechanical stress in SMT-assemblage.

Hoogwaardige optie: parylene Conforme coating

For critical industrial applications, parylene provides the highest level of protection.

Belangrijkste voordelen:

• Pinhole-free, uniform coating
• Superior resistance to moisture, chemicals, and corrosion
• Excellent performance in extreme environments

However, due to higher cost and specialized processing, it is typically reserved for high-reliability or mission-critical control systems.

Other coatings in industrial use

Acryl

• Cost-effective and easy to apply
• Geschikt voor mild industrial environments
• Limited resistance to chemicals and harsh conditions

Epoxy

• Sterk en duurzaam
• Good for mechanical protection
• Less suitable due to stijfheid en slechte herwerkbaarheid

De juiste coating kiezen

• Chemical exposure (oil, solvent, factory gases) → Polyurethane (best choice)
• High temperature + vibration → Silicone
• Extreme or mission-critical environments → Parylene
• Cost-sensitive, low-risk applications → Acrylic

Eindconclusie

For most industrial control boards in PCB-assemblage en SMT-assemblage, polyurethane Conformal Coating is the best overall choice due to its excellent chemical and environmental resistance. Silicone is ideal for high-temperature and vibration-prone environments, while parylene offers premium protection for critical systems.

Vraag een offerte aan voor conforme coating

Op zoek naar betrouwbare conformal coating oplossingen voor uw PCBA project? Klik hieronder voor een snelle offerte.
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Aanbevolen materiaal

• Acryl (AR)
• Silicone (SR)
• Polyurethaan (UR)
• UV-uithardbaar - UV
• Ik weet het niet zeker / Heb advies nodig

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