Acktar Advanced Coatings
Acktar Advanced Coatings
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Direct order from Acktar Company StoreOrder from Edmund Optics catalog

Acktar VIS and IR Light Absorbing Foil

Spectral Black™ 
Spectral Black HP™

Spectral Black™ coating - delivers wide band low reflectance for FUV, UV, VIS, SWIR, MWIR and LWIR. Spectral Black™ is applied in a wide range of demanding stray light suppression and other applications and is now available in foil form for application where direct coating of parts is not practical.

The foil is available with a self-adhesive backing for application to any desired surface. For severe humidity conditions Spectral Black HP ™ coating is recommended.

Acktar foil is an ideal solution for large areas and for contaminated environments where the surface needs to be periodically renewed.

Spectral Black™ - Key features

Typical applications

  • High emissivity / low reflectance
  • Low outgassing
  • Class 1 clean room compatible
  • No particulation
  • Cryogenic to +350℃
  • Cleanable
  • Easy to handle and install
  • Withstands intense UV without fading
  • Stray light absorption / suppression
  • Optical packaging
  • Laser devices
  • IR systems
  • Passive thermal control
  • Stray light absorption / suppression
  • Optical packaging
  • UV inspection tools
  • UV systems
  • UV printers

Now available either from Acktar Store or from the Edmund Optics catalog



Specular semi glossy


Operating Temperatures

long term -196℃ to +350℃, short term up to +400℃

without adhesive

long term -40℃ to +121℃, short term up to +177℃

with standard adhesive

long term -50℃ to +150℃, short term up to +260℃

with low-outgassing adhesive

Humidity Resistance


Spectral Black

-MIL-C-810G, Method 507.5,  procedure 1,Cycle B1

-ISO/CD 12592.2 Task 10

Spectral Black HP

completely inorganic

Coating Chemical Content


Abrasion Resistance

3μm - 7μm

Coating Thickness

Foil Substrate

Aluminum foil standard-other metals and plastics optional


up to 200 mm


125μm standard-other thicknesses available



Optional Adhesive Layer

60 microns standard


- storage conditions – room temp (approx 21℃); 50% RH
- To obtain best performance, applied adhesive and remove
protective within 12 months from shipment

storage and shelf life

standard - sheets,coils available on request

delivery form

* The data should be considered typical/representative only
Limited Warranty: For a period of 6 months from the date of first sale, Acktar warrants this product(s) to be free from defects in manufacturing. Our obligation will be to provide replacement product for any portion proving defective, or at our option, to refund the purchase price thereof. User assumes all other risks, if any, including the risk of injury, loss or damage, whether direct or consequential, arising out of the use, misuse or inability to use this product(s). ACKTAR disclaims any and all other warranties, expressed or implied, including the implied warranties of merchantability and fitness for a particular purpose.

Acktar Vis and IR Light absorbing Foil (PDF format) - click here


Quick Quote - Coated Black Foils

Note: the values are average for above selected wavelength band
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