What is the best way to apply with airbrush?
How many layers does it take to get the high gloss?
How long is enamel supposed to stay tacky for?
If longer than two days did I use too much enamel?
I usually thin it with Testors Enamel Thinner with a 50:50 ratio.
As many layers to get good coverage
Gloss enamel can stay tacky for a week or so depending on the humidity levels
So…no
So should I wait until completely dry(week) before doing a second,third,ect layers
it usually takes me 3-4 light coats of acrylic to completely cover a model
It is the same for the gloss black in you opinion?
Like others, I use about a 1:1 ratio, paint to thinner. The drying time depends on weather conditions, cold or humid it takes as long as 3 or 4 days.
While I buiid up several coats, I often do that in one session. I gather all parts that will be airbrushed black. I put a thin coat on first on all parts. Then I go back and in order give them a second, heavier coat. Then a final coat. This last coat should not go on thin. The secret to gloss is to put it on heavy, to the point that it is within seconds of running. It is a game of brinkmanship. How do you know it is about to run? Experience and a good positionable light. You must be able to see light reflected in paint. That is the best way to judge the gloss/thickness. If it didn’t run on you, it is not too thick.
Some folks make a heated dryer (some folks make them from food dryers). I am afraid I will warp plastic. Lately I have been using a modified storage case (what you transport models in) as a ventilated dryer. Enclosing model/parts in a dryer eliminates dust while drying- a problem with slow drying paints.
Don I’m intriqued, I have a spare empty case sitting around.
What do I do cut a hole that fits a hair dryer in one side and vent holes in the other?
But thank you for the advice that was the exact kind of application detail I wanted(also glad to hear I did’nt ruin my model 
)
Would you also recommend using the MM gloss black spray can along with airbrush?
How long after fully dry is it ok to start sanding and buffing with the polishing pads for parts that have a ridge or two
I just tried the spray can and it worked beautifully