Coating that is both reflective and thermally conductive

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SUMMARY

The discussion focuses on finding a coating for aluminum (380A) that is both reflective of solar radiation and thermally conductive for passive cooling in electrical enclosures. ZEFFLE by Daikin is identified as a potential solution, noted for its low heat transfer coefficient. Additionally, the suggestion of using aluminum sheets on stand-offs is presented as a more durable and cost-effective alternative to high-tech paints, providing both shading and weatherproofing for air vents.

PREREQUISITES
  • Understanding of thermal conductivity and heat transfer principles
  • Familiarity with aluminum materials, specifically 380A
  • Knowledge of passive cooling techniques for electrical enclosures
  • Awareness of reflective coatings and their properties
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  • Research ZEFFLE by Daikin and its specifications for thermal conductivity
  • Explore alternative reflective coatings suitable for aluminum
  • Investigate passive cooling design strategies for electrical enclosures
  • Learn about the properties and applications of aluminum sheets in thermal management
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Electrical engineers, materials scientists, and professionals involved in thermal management and passive cooling solutions for electronic enclosures.

artengn
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I have an electrical enclosure that sits in direct sunlight and must use passive cooling. Does anyone know of or have ideas on where to find information about a finish for aluminum (380A) that is both reflective of sun radiation while allowing thermal energy generated within the enclosure to efficiently pass through for convective cooling?
 
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Googling "IR reflective coating" nets quite a few results. ZEFFLE made by Daikin is one. Just find one with a low heat transfer coefficient.

Though, I would find a more durable solution - maybe have a sheet/s of Al on stand-offs to shade the enclosure. probably cheaper and definitely more effective and hard wearing than a high tech paint. They could also double as weather proofing for air vents.
 

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