Yes, paint is thicker than primer. A cheap flat paint will hide imperfections better than a primer, but even though flat paint may hide imperfections better, it does not serve as a good primer because it does not seal. Is Primer waterproof? is car primer waterproof.

Is primer supposed to be watery?

It shouldn’t be watery! It’s more of a gel feel to it!

How is primer different than paint?

The basic difference between paint and primer is that paint is typically made up of resins pigments whereas primers are resins. The primer’s basic function is to provide a sealed and stable surface for your topcoat (paint) and the resins contained in primers seal porous surfaces and provide that bond to the surface.