I was a little suspicious about Testors model paint enamel, too. (I mean, honestly, the stuff I used to paint my model of the USS Forrestal in the 4th grade??) But the Vintage Trek website suggested it—at least for Trek's Dupont Imron paint—so off I rode to the hobby shop. The guy—obviously into terribly intricate, impressive, difficult-to-assemble models in a big way—takes one look at my bike, an '85 "Race Blue" Trek, and says "wait here". He comes back with a small bottle of Testors "French Blue". "That's your color", he says. Looks a little dark to me, so I ask him if maybe I should get a lighter blue to mix 'em. "Nope… that's all you need." Took it home and, sure enough, it was a perfect match. I was impressed.