* Most paints dry through an evaporation process (not a chemical reaction). The solvent in the paint evaporates, leaving behind the pigment and binder. This is not** an exothermic reaction, as it's a physical change, not a chemical one.

* Some paints, like epoxy or polyurethane paints, cure through a chemical reaction called polymerization. This process involves the monomers (small molecules) in the paint combining to form long chains (polymers). This can be exothermic**, releasing heat as the bonds form.

So, the answer is:

* For paints that dry by evaporation: No, not exothermic.

* For paints that cure by polymerization: Yes, can be exothermic.