coatings

Crazily enough, the program is having problems with heat melting off the stealth coatings, which is why the current fleet is not cleared for supersonic flight.

The total (when including desirable features such as AR coatings, etc) always came to ~$200 for each pair.

Any random black paint absorbs more than 90% of the light, and lots of black coatings survive 700°C.

Organosilanes currently find wide use in industry as hydrophobic coatings, adhesion promoters, and as useful intermediates in drug synthesis.

There are other black coatings with up to 0.99 absorption, but they aren't as tough.

There are coatings available, such as liquipel, that can make laptops highly water resistant, so why doesn't Apple use such a coating?

Regarding durability, the article says > Instead of using chemical coatings they used lasers to etch a nanostructure on the metal itself.

So a lot of thought about coatings and materials used for screens and bodies, packaging (part of the consumer experience), and so on.

Here's a list of some known values for black coatings for solar collectors.

None of the coatings were cheap when I was researching them, but a % or two better than the films.

A direct comparison with off-the-shelf high-temp black coatings would have been useful.

Having temperature regulation avoids overcooking the nonstick coatings, which prolongs their life.

"Solarization" and ablation of the lens coatings was an ongoing problem, especially for UV sources.

"Some decision at some point in 1970s or 1980s, Kodak executives/management probably decided against diversifying." In that era Kodak was diversified in areas such as pharmaceuticals, medical diagnostics, thin-film coatings, and industrial chemicals.

The wood end table i spray finished sitting next to me could be dipped in acetone, denatured alcohol, whatever, and it wouldn't affect the finish) So yeah, i'm going to go out on a limb and say "apple has to figure out how to use coatings that resist these kinds of things", because it's 100% cheap and trivial.