Is Happiness A Warm Can?

It helps but it isn't the end all.  When you release contents that are under pressure they cool rapidly...even will freeze if the depressurization is of such volume and duration.

Hot water helps warm the paint to in theory it never drops below ambient temp while being sprayed. The orange peel effect is the result of the formulation and reaction between the gas used to propel it from the can, which in many cases is propane which is a cold liquid.

Those who love to use rattle can paints, but don't like the effect of the application will decant them and apply with an airbrush.

Several light coats! Don't glob it all on in one application. Wet sand/polish to remove the OP effect.

I've gotten in the habit of warming all my rattle cans before use. I can't be sure that it helps or definately prevents orange peel, as I think that can be mostly prevented by proper application and practice, but I seem to get pretty consistent results when I heat the can. I will either use hot tap water or leave the can in front of a sapce heater for a while. I shake it as it is warming up to check the temperature so it doens't get too hot.

The reason I started doing it is because I heard it helps the paint flow better through the nozzle, preventing most of the spatter that is associated with cans.

Oh, and off topic, I do think happiness is a warm can...

Heard it helps but haven't tried it...

I don't warm spray cans of paint, since in my opinion the pressures are a bit too high in them anyway. I did warm cans of propel for my airbrush before I bought a compressor.

I don't ever paint very long with a rattle can, so maybe it just never gets cold enough. I'd know if it did by the feel and never have felt a can get really cold (like the propel cans do if you spray for several minutes.  I generally only use rattle cans for primer and for small detail painting.  Major jobs like wings, fuselage, ship hulls and car bodies get the airbrush for final coats, so I am never using a can for extended painting.

I'm one of those guys who runs my airbrush very low pressure, so I guess I like a bit less pressure.