Space Marine Dreadnought

I just bought a space marine dreadnought. Does anyone know how long it takes for the Games Workshop primer to dry

Although I am not familiar with the models "Games Workshop" paints specifically, I was the construction of 34 + years, and primers I use spray (Testors, Tamiya, etc.) takes about 1-2 hours dry to the touch, but should be allowed to dry 24 hours before applying the paint on them.

GOOD LUCK