Light Absorbing Panels - Acktar black coatings

Light Absorbing Panels

Hexa Black
Light Absorbing Panels
Light Absorbing Panels – Round

Acktar Light Absorbing Panels are used to eliminate light reflectance in optical applications.

  • Hexa Black™, Metal Velvet™ and Spectral Black™ Technologies
  • Lowest reflectance at grazing angles out to 88° AOI for Hexa Black™ panels
  • Extremely wide band performance – UV thru MWIR (LWIR for Metal Velvet™)
  • Aluminum construction
  • High abrasion resistance (Hexa Black™)


Space Qualified
Low Reflection
Light Weight
REACH ROHS Compliant
Low Outgassing


Acktar Light Absorbing Panels are used in optical systems as light absorbing black out material, stray light absorber or low power laser beam dumps.

The panels can be integrated using compatible optical mount or using panels with low outgassing adhesive back (optional).

Hexa Black™ light absorbing panels features wide-band absorption at grazing angles out to 88˚.

  • Operating Temperature: -50°C to 250°C (150°C with adhesive back)
  • Lowest reflectance at grazing angles out to 88° AOI
  • High abrasion resistance
  • Fixing holes (optional)

Metal Velvet™ and Spectral Black™ are low thickness coatings with extremely low hemispherical reflectance and high emissivity.

  • Based on the internationally recognized Acktar technology
  • Low outgassing adhesive back to ease mounting to surfaces (optional)
  • Fixing holes (optional)
  • Wide range of standard sizes and customized options
  • Operating Temperature: -50°C to 150°C

* Available also in flexible sheets, not mounted to aluminum plate.


Typical Properties

Hexa Black Reflectance:

Hemispherical reflactance on different AOI

Metal Velvet Optical Performance:

Spectral Black Optical Performance:

spectral black optical performance chart

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