Acktar™ offers Metal Velvet™, an ultra-diffusive, wideband (EUV-FIR), absorbing aluminium foil with 99.9% specular absorptance. The key characteristics of the Metal Velvet coating include:

  • High Adhesion
  • Temperature stability
  • Space Qualified
  • Light Weight
  • Low Reflection
  • REACH ROHS Compliant
  • Low Outgassing: CVCM < 0.001
  • Thickness 3-8µm
  • Completely Inorganic

Acktar produces a range of high-emissivity, ultra-black coatings for the suppression of stray light throughout the optical spectrum (UV-VIS-IR). Coated foils and thin films enable customers to apply the coating to surfaces without the need to ship the parts to Acktar.

General features of Acktar's black thin films and foils include:

  • Clean room compatible (ISO 5)
  • Cleanable
  • Suitable for flat, concave or convex surfaces
  • Applicable to metals, glass, ceramics, plastics
  • Zero fluorescence

Typical application of Acktar's black thin films and foils include:

  • Optical system housings
  • Apertures and baffles
  • Beam dumps
  • Laser safety screens
  • Mobile phone camera parts
  • Automotive cameras and HUDs
  • Calibration standards
  • Analytical lab arrays

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Last updated: 2023-10-20

Metal Velvet™ Ultra Diffusive Wideband Absorbing Aluminium Foil

150 USD - 5,610 USD




lead time
1 mo
working temperature (without adhesive)
long term: -250°C to +350°C
short term: up to +400°C
storage temperature (indoors)
approximately 21°C


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