But here they are using nanotechnology and laser printing methods to thin that iron coating to nanometersCool you do know that the F-16’s have been using ferromagnetic coating to improve low observability for nearly 20 years.
I hope you also know that iron is heavy and the coating adds at least a 100 kilograms or more to the empty weight of the fighter.
You do also know absorption of EM waves produces heat and Iron absorbs heat so I’d take the claim of reduced IR signature with a dollop of salt.
And claim this also improves the stealth properties
So its a big improvement on older techniques