Coupla ?s for you guys dealing with drying times
!. how long to air dry?
2. with a dehydrator ?
Paint is model master gloss black...using it for undercoat for alclad!!!

Air dry for at least a couple days. I don't have dehydrator, so don't know.

Apply your paint, start your university education, check paint after graduation. May still be a little tacky.

Using an airbrush and a food dehydrator I've had reliable dry times of about a day.

In general, oil-based glosses take the longest time to dry compared to other paint types (acylic, lacquer, etc). But they can produce very slick and shiny finishes.

Personally I use MM glosses for specific applications, such as needing a specific color and sheen, for example, Chysler Engine Red for engine blocks, or, such as your case, for Aclad of ther applications requring oil-based glosses. I'll use harder paints such as lacquer for bodies as they produce a hard, durable, and quick dry finish.

Hope this helps.