Hmm. Maybe for small bits like pioneer tools on armor. Personally I use Model Master metalizers (even though they're recommended as airbrush only, too) for small bits all the time. But Alclad is a different beast from those.
If you're trying to do a whole something like an aircraft, no way. Best bet without an airbrush in that case, in my opinion, would be one of the wax-based options, like rub-n-buff or Treasure Gold. There was Tamiya Spit IX at the recent Austin show done in the Treasure Gold stuff and it looked pretty great:
On the Bench: 1/32 Trumpeter P-47 | 1/32 Hasegawa Bf 109G | 1/144 Eduard MiG-21MF x2
On Deck: 1/350 HMS Dreadnought
Blog/Completed Builds: doogsmodels.com