Welcome to the Lambertian BlackTM Foil webpage! Our product is the ideal coating for those who require a matt surface with the lowest reflectance in the UV, VIS, and IR regions. With its completely inorganic coating, zero outgassing, and vacuum compatibility, our product offers superior optical performance, high abrasion resistance, and easy cleanability. Our webpage provides detailed specifications and typical properties of the Lambertian BlackTM Foil, along with additional details such as sample images and related products.






Lambertian Black Foil
163€ – 184€
- Essentially zero outgassing!
- Vacuum and thermal-vacuum cycling compatible
- No particulation
- Only a few microns thick
- Virtually adheres to all substrate materials
General
Specifications
Typical Properties
Lambertian BlackTM is the coating of choice where an ideal matt surface is required, with the lowest reflectance in the UV, VIS, and IR regions and high absorptance at grazing angles.
In addition to its superior optical performance, Lambertian BlackTM delivers high abrasion resistance and can be easily cleaned using a clean cloth wiped with a solvent.
Like other Acktar coatings, this is a completely inorganic coating with many advantages such as zero outgassing, vacuum compatibility, and UV stability.
Detailed BRDF data is available.
Operational wavelengths
EUV to LWIR
Substrate thickness
50-100µm
Coating Thickness
3µm
Emissivity
3-10µm: >98
3-30µm: >88
Working temperature (°C)
-269 to 380
Working temperature (°K)
4 to 653
Weight of coating
0.7 - 1.1 (mg/cm²)
Light Abrasion resistance
Moderate plus
Additional Details
Sample image under grazing-light illumination – Lambertian BlackTM (left) vs diffuse black surface (right):