ABB COAT-ROHS

Technical Specifications

• Material Composition:
  COAT-ROHS utilizes a single-component, high-solid acrylated polyurethane formulation. This material offers excellent chemical resistance, thermal stability, and mechanical protection, ensuring long-term performance in challenging conditions 12.
• Protection Rating:
  It provides IP67 ingress protection (optional) against dust, moisture, and temporary submersion, making it suitable for offshore, mining, and industrial settings where exposure to water or corrosive agents is common 112.
• Compliance Standards:
  • RoHS Directive (2011/65/EU): Ensures elimination of hazardous substances like lead, mercury, and cadmium.
  • UL 94 V-0: Meets flammability requirements for electronic components.
  • IPC-CC-830 and MIL-I-46058C: Conforms to industry standards for conformal coatings, ensuring uniformity and reliability 12.
• Physical Properties:
  • Thickness: Customizable between 25–100 microns to address varying environmental demands.
  • Cure Time: Rapid curing at room temperature (25°C) or accelerated curing at elevated temperatures (up to 80°C) for production efficiency.
  • Operating Temperature: Functions reliably between -40°C to +125°C, maintaining flexibility and integrity across extreme thermal ranges 12.

Functional Features

1. Environmental Protection:
   • Corrosion Resistance: Guards against salt mist, humidity, and chemical exposure, critical in marine, petrochemical, and industrial environments.
   • Thermal Stability: Minimizes thermal expansion mismatch, reducing stress on components during temperature fluctuations.
2. Electrical Performance:
   • Dielectric Strength: Maintains high insulation resistance (>10⁹ Ω) and low dielectric constant (<3.0), ensuring signal integrity in high-frequency applications.
   • Arc Resistance: Prevents electrical arcing and short circuits in high-voltage systems.
3. RoHS Compliance:
   • Eliminates restricted substances, ensuring products meet EU and global environmental standards.
   • Certifications like CE and UL validate its safety and reliability 112.
4. Mechanical Durability:
   • Impact and Vibration Resistance: Resists mechanical stress from shock, vibration, and thermal cycling, extending component lifespan.
   • Abrasion Resistance: Protects against physical wear in high-motion or abrasive environments.

Application Scenarios

1. Industrial Automation:
   • Controls and monitors equipment in chemical plants, steel mills, and food processing facilities, where exposure to corrosive agents or dust is prevalent 119.
2. Power and Energy:
   • Protects power electronics in wind turbines, solar inverters, and offshore substation equipment from saltwater and humidity 112.
3. Marine and Offshore:
   • Ensures reliability in shipboard systems, offshore drilling platforms, and underwater sensors subjected to salt spray and submersion 112.
4. Transportation:
   • Safeguards automotive ECUs, railway control systems, and avionics from moisture, vibration, and extreme temperatures 1219.
5. Medical Devices:
   • Complies with RoHS for diagnostic equipment and portable medical devices, ensuring safety and environmental responsibility 612.

Integration and Compatibility

• Process Compatibility:
  COAT-ROHS is compatible with automated spray, dip, or selective coating processes, enabling seamless integration into high-volume production lines.
• Material Compatibility:
  Bonds effectively with PCBs, metals, plastics, and ceramics, ensuring uniform coverage without delamination.
• Component Accessibility:
  The coating allows easy rework and component replacement while maintaining protective properties post-repair.

Environmental and Safety Considerations

• Sustainability:
  The coating’s RoHS compliance aligns with ABB’s commitment to reducing environmental impact. It minimizes hazardous waste and supports circular economy principles 612.
• Health and Safety:
  Low volatile organic compound (VOC) emissions and non-toxic formulation ensure safe handling during application and maintenance.

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