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AZ-70-WIZT is an inorganic white thermal control paint developed for use on spacecraft / satellite surfaces exposed to the deleterious effects of the space environment.  The resulting nonspecular white coating provides superior thermal control /protection by allowing only 8-12% of the solar radiation impinging on the spacecraft / satellite external surface to be absorbed through to the interior systems while emitting 89-93% of the internal heat generated to the cold vacuum of space. AZ-70-WIZT incorporates a highly stabilized pigment system with a silicate binder.  This spacecraft / satellite paint forms a ceramic coating that has tested and proven itself stable in the harshness of the space environment.  AZ‑70-WIZT has been exposed by NASA to atomic oxygen (AO) fluence of 5.6  x 10²² atoms/cm², charged particle radiation of 4.5 x 10¹⁵ e^-/cm², and vacuum ultraviolet (VUV) radiation (from 118 nm to 170 nm) of 701 equivalent solar hours with less than 4% deterioration in solar absorptance (α_s) and less than 1% change in thermal emittance (ε_t). 

AZ-70-WIZT has been thoroughly tested in space. AZ-70-WIZT was flown on the MIR MEEP POSA-I experiment and the Materials International Space Station Experiment (MISSE).

View pre- and post-flight data for AZ-70-WIZT on MISSE (after 4 years in space).

The table below lists the optical and application parameters of cured AZ-70-WIZT.

Note: terms reflectance, emittance and absorptance and terms reflectivity, emissivity and absorptivity are often used interchangeably.