Provided is a condensation-reaction-curable
silicone coating agent composition which contains, as a main component, a hydrolysable-group-containing organosiloxane mixture and also contains a curing catalyst, in which the hydrolysable-group-containing organosiloxane mixture contains an organotrisiloxane compound having a specified molecular structure in which there is at least one non-substituted,
halogen-substituted or
alkyl-substituted
phenyl group in the molecule thereof and at least four hydrolysable groups are contained at molecule chain both ends thereof and an organodisiloxane compound having a specified structure in which there are at least two non-substituted,
halogen-substituted or
alkyl-substituted phenyl groups on one
silicon atom in the molecule thereof and at least two hydrolysable groups are contained on the other
silicon atom in the molecule thereof, and the organotrisiloxane compound and the organodisiloxane compound are contained in the hydrolysable-group-containing organosiloxane mixture at a specified blend ratio. The
silicone coating agent composition has excellent storage stability although no
organic solvent is contained, and can be cured rapidly at ambient temperature after being applied on a substrate to provide a cured
coating film having excellent transparency, adhesiveness and the like, having excellent conformability to the shape of the substrate upon the bending of the substrate, and capable of preventing the
corrosion of the substrate.