Aluminum coating emissivity and outgassing - Acktar black coatings

Aluminum coating emissivity and outgassing comparison

Aluminum often found in electronics and optical measuring devices and in general, it is widely used because of its price and mechanical properties.

The downside of untreated, black painted or anodized aluminum arises when there’s a need in the highest possible emissivity. These are the cases where Acktar coatings are the most helpful.

Browse the table to see how Acktar’s coatings optical properties compared to other methods of coating:

  • Coating method
  • Aluminium
  • Black anodized
  • Painted Black
  • Acktar coatings
  • Outgassing RML (%)
  • 0.05
  • 0.05
  • 0.2-0.5
  • 0.2
  • Outgassing CVCM (%)
  • 0
  • 0.7
  • 2-10
  • 0.001
  • Coating thickness
  • -
  • 20-150µm
  • 20-125µm
  • 3-10µm
  • Emissivity 3-10µm
  • -
  • -
  • -
  • >0.97
  • Emissivity 3-30µm
  • 0.04-0.2
  • 0.82
  • 0.91
  • >0.88

More metal substrates