Anti-Reflective

SolarBlack

Inorganic High Temperature Black Coating

Solar absorption: BOL 0.96, EOL 0.96

Emissivity: BOL 0.8, EOL 0.8

Stable from < −150 °C to > 550 °C

SolarBlack has been extensively tested by ESA and Astrium and is the baseline heatshield coating for ESA’s Solar Orbiter. It will be the first line of defence for the closest man-made object to the Sun. Due to its high emissivity and extremely high solar absorptance, the coating can efficiently absorb incoming solar radiation and re-emit it to the surrounding cold medium of space. It has a unique combination of durability, thermal stability, and electrical conductivity, and contains no volatile organic compounds.