<p>A curable silicone coating agent, in particular of a condensation-reaction curing type, that contains a wet-process silica which satisfies requirements (1) to (3) given below: (1) average diameter of an agglomerated particle measured by a laser diffraction scattering method: not exceeding 5 micrometers; (2) percentage of silica particles with the size of not greater than 1 micrometers, as measured by the laser diffraction scattering method, per all silica particles: not less than 10%; and (3) boiled linseed oil absorption: not less than 200 cc/100 g.</p>