Lambertian Black^TM Foil

$197 – $223

Essentially zero outgassing
Vacuum and thermal-vacuum cycling compatible
No particulation
Only a few microns thick
Virtually adheres to all substrate materials

General

Welcome to the Lambertian Black^TM 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 at all angles of incidence, high abrasion resistance, and easy cleanability. Our webpage provides detailed specifications and typical properties of the Lambertian Black^TM Foil, along with additional details such as sample images and related products.

Specifications

Substrate material

Stainless steel

Adhesion test (ref ECSS-Q-ST-13C)

Coated pieces withstand the Scotch tape test (3M853 Crystal Clear tape, strength of 13N per 25mm), without any evidence of coating removal.

Outgassing CVCM (%)

0.001

Outgassing RML (%)

Coating chemical content

completely inorganic

Surface resistivity

≤2X10^3 Ω/□

Cleanability

"Coated pieces withstand cleaning with ethanol, IPA or acetone with no change in optical and technical characteristics." Can be cleaned using clean cloth wiped with above mentioned solution.

Parts shape

Flat or simple 3D shape

Humidity Resistance

MIL-C- 48497A

Certificates

ROHS, REACH, ISO 9001:2015, AS9100

Typical Properties

Lambertian Black

Lambertian Black^TM 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 Black^TM 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

Emissivity

3-10µm: >98

3-30µm: >88

Working temperature (°C)

-269 to 380