nintendoWhy SNES Shell Yellowing Is the Honest Collector's TestFlip over the next SNES you find at a flea market. Odds are the top shell and the bottom shell are two different colours — one drifting toward old margarine, the other still close to Nintendo's original grey. That mismatch isn't grime, and it isn't just sun damage. It's chemistry, and it's the most useful thing to understand before you buy, sell, or restore Super Nintendo hardware.
Why one console yellows in two different shades
The SNES shell is ABS plastic mixed with brominated flame retard
