He and his dozen employees supply the aviation industry with specialty fluids. It's not a bad business, but growth is slow, and Mr. Sparks was itching for something bigger, a home-run consumer product to pump up profits. Inspiration struck in traffic one day, he said, when two thoughts crossed his mind in quick succession. One of his company's products is a recently declassified radar-absorptive coating for military jets.
Skepticism is inevitable.
I don't think you paint a plane to make it invisible. A thin coat of wax cannot stop radar waves from bouncing off a car's highly reflective metal surfaces, Dr. Buchholz said. And you're still violating the law.