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https://www.surreynanosystems.com/vantablack

Vantablack's exceptional properties

Ultra low reflectance - Vantablack absorbs 99.965% of light (750nm wavelength)

UV, Visible and IR absorption - Absorption works from UV (200-350 nm wavelength), through the visible (350-700nm) and into the far infrared (>16 microns) spectrum, with no spectral features.

Very high front to back thermal conduction - excellent for Black Body calibration sources

Super hydrophobic - Unlike other black coatings, water has no impact on the optical properties

Very high thermal shock resistance - Repeatedly plunging a Vantablack coated substrate into liquid Nitrogen at -196°C and then transferring to a 300°C hot plate in air does not affect its properties.

Resistant to extreme shock and vibration - Independently tested, Vantablack has been subjected to severe shocks and vibration simulating launch and staging.

Low outgassing and mass loss - Independent testing to ECSS shows almost undetectable levels of outgassing, CVCM, WVR, RML and TML

Excellent BDRF and TIS performance - Even at shallow angles the levels of blackness outperforms all other commercial super-black coatings