Pierre Sprey, who helped develop the A-10 and F-16 jets, said he believes the glues that hold the F-22 stealth “skin” in place is emanating chemicals that are making the pilots sick.
According to Sprey, the Air Force has overlooked, or ignored, the potential stealth skin problems because it has not been able to test successfully for adhesive toxins in the pilot’s bloodstream. He said the Air Force doesn’t talk about the stealth adhesives because the chemical makeup of the compounds that make up the stealth skin are considered “classified information.”
I’m having a hard time reconciling what this guy is saying with the Air Force report saying that the possible diisocyanate toxins haven’t been found in the pilots’ blood. The diisocyanate adhesives I work with do not outgas that long, though I have to say I don’t use anything classified. If the faulty adhesive is used on the skin, and therefore the outside of the plane, how would a pilot breathe that? There should also be a pattern of more pilot illness with more recent re-application of the adhesive, or a demonstrable sensitivity to diisocyanates.
If all else fails, apply a little heat and make it offgas faster.