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AZ-2100-IECW White Thermal Control, Electrically Conductive Paint / Coating
AZ-2100-IECW is an inorganic conductive white thermal control paint developed for use on spacecraft and satellite surfaces exposed to the deleterious effects of the space environment. This paint is designed to be deposited onto large complex surfaces with minimal difficulty or environmental impact to form a nonspecular white coating that maintains optical and electrical properties when exposed to the space environment. This thermal control coating possesses several orders of magnitude greater electrical conductivity than currently available thermal control coatings while providing atomic oxygen protection and surface charge dissipation for spacecraft and terrestrial applications.
This spacecraft / satellite paint has been thoroughly tested in space, having been flown on the Optical Properties Monitor (OPM), the MIR MEEP POSA-I experiment and the Materials International Space Station Experiment (MISSE).
In addition, AZ-2100-IECW was used to coat the Multi-Mission Radioisotope Thermoelectric Generator, or MMRTG of the Curiosity Mars Rover which began its mission on Mars in 2012. This power unit converts the heat from decaying plutonium-238 into electricity that the Curiosity rover needs to survive. See NASA Press Realease.
View a 2008 NASA Technical Report (Doc.ID 20080031465) that studies AZ-93, AZ-2000-IECW, and AZ-2100-IECW for auroral zone and geosyncronus orbiting satellites.
The properties of AZ-2000-IECW and AZ-2100-IECW differ in their level of conductivity and solar absorptance.
The table below lists the electrical, optical and application parameters of cured AZ-2100-IECW.
|Nominal Surface Resistivity
|Thermal Emittance (ε_t)
|Solar Absorptance (α_s)
||0.15±0.02 at ≥ 5.0 mils thickness
|Use Temperature Range
||-180 C to 1000 C
|Nominal Dry Thickness
||5.0 ± 1.0 mils (over 85% of coated area)
|ASTM D3359A Adhesion Grade
||Not less than 3A
Note: terms reflectance, emittance and absorptance and terms reflectivity, emissivity and absorptivity are often used interchangeably.