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Acktar Light Absorbent Foil and Film

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Acktar Light Absorbent Foil

Acktar Light Absorbent Foil Acktar Light Absorbent Film Acktar Light Absorbent Foil and Film Coating Options
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  • Diffusive, Lambertian, or Specular Reflectance
  • Extremely Wide Band Performance from the UV to IR
  • Standard, Low Outgassing, and No Adhesive Options
  • Larger Rolls Also Available
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Acktar Light Absorbent Foil and Film is used to eliminate light reflectance in applications where the direct coating of parts is not practical, including optical packaging, laser devices and platforms, IR systems, or passive thermal control. Acktar Light Absorbent Foil and Film features high emissivity with low reflectance, low outgassing, excellent biocompatibility, a broad operating temperature range, and compatibility with class 1 cleanrooms. Acktar Light Absorbent Foil and Film is available in pre-cut patterns or as large sheets for custom patterns.

Acktar Light Absorbent Foil and Film is offered in Metal Velvet™ (diffusive coating on aluminum), Spectral Black™ (semi-specular coating on aluminum), MaxiBlack™ (diffusive coating on polyimide), or Lambertian Black™ (diffusive coating on stainless steel). Metal Velvet offers superior light absorption performance while Spectral Black is more durable, and Lambertian Black performs better at grazing angles. Maxiblack, in addition to being durable and flexible, is nonconductive and can be used in applications that require light absorbing materials with no electrical conductivity.

Note: Metal Velvet has low resistance to abrasion and all surface contact should be avoided without proper equipment.

Technical Information

Product Type Metal Velvet™ Lambertian Black™ MaxiBlack™ Spectral Black™ Hexa-Black™
Key Features Low reflectance of ~1% High absorption at grazing angles Thin polyimide, nonconductive substrate Semi-specular finish Ultra-high absorption at grazing angles
Substrate Material Aluminum Stainless Steel Polyimide (Kapton) Aluminum Aluminum Honeycomb
Substrate Thickness 120µm 100µm 75µm 130µm 2mm
Appearance Diffusive Highly Diffusive Diffusive Specular Diffusive 3D Structure
Typical Spectral Range EUV - FIR EUV - FIR UV - MWIR VIS - MWIR EUV - FIR
AOI Range 0 - 60° 0 - 80° 0 - 60° 0 - 45o 0 - 88°
Reflectance @ 0° AOI ~1% ~1.5% ~2.5% ~2% ~1.5%
Abrasion Resistance Light Moderate to High Moderate Moderate Moderate
Cleanliness Class 10000 - ISO 7 Class 100 - ISO 5 Class 100 - ISO 5 Class 100 - ISO 5 Class 10000 - ISO 7

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