Spectral Black foil | lowestl Black coating | Acktar Optical black coating

Spectral Black foil

Adhesive spectral Black coating foil

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

  • Semi-Specular
  • Completely Inorganic
  • Aluminum foil


SKU: N/A Category:
High Adhesion
Space Qualified
Low Reflection
Low Thickness
Thickness 3-8µm
Temperature stability
Light Weight
REACH ROHS Compliant
Low Outgassing
Completely Inorganic


Aluminium foil substrate thickness
125 microns typical
Coating thickness
5 microns typical
Adhesive thickness
60 microns typical (adhesive is optional and offered in Standard and Low outgassing)
Abrasion resistance
Humidity resistance
Storage conditions – adhesive limited
Indoor conditions, (approx. 21℃; RH approx. 50%)
Standard shelf life – adhesive limited
For best performance, apply adhesive and remove protective layer within 12 months of shipment from Acktar.
Compressed dry air / nitrogen
Delivery formats
Sheets, Rolls, Die-Cuts
ROHS, REACH, ISO 9001:2015, AS9100


Additional details

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 coated 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.

Optical performance

spectral black optical performance chart

Working Temperatures

Without adhesive
Long term -196℃ to +350℃, short term up to +400℃
With standard adhesive
Long term -40℃ to +121℃, short term up to +177℃
With low-outgassing adhesive
Long term -50℃ to +150℃, short term up to +260℃

Large Order? We Can Help.

For a personal consultation with one of our experts please leave your details below and we will get back to you as soon as possible. Together we will determine your exact needs in terms of coating type, quantities, sizing and special product characteristics etc. Once all is clear we will be more than happy to submit a customized offer with excellent competitive prices.

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