The primary problem is the presentation assumes a single temperature situation with the radiation. (wattsupwiththat.com)
(3) In a low temperature situation (winter) in an old car, the engine may seize before overheating. (mechanics.stackexchange.com)
This expands the use of the material massively, a thin lightweight ceramic coating stops it delaminating if it's used in high temperature situations like the brake ducts on an F1 car. (evo.co.uk)