[Problem to be Solved]To provide a non-curable coating composition which is used for preventing or reducing the adhesion of various sticky substances to the surfaces of substrates and is stable at elevated temperature, by using modified silicones having functional groups.[Means to Solve the Problem]A non-curable coating composition characterized by containing a carboxy-modified silicone with a carboxy group at a side chain thereof, and an epoxy/oxyalkylene-modified silicone with an epoxy group and an oxyalkylene group at a side chain thereof in a weight ratio ranging from 1:2 to 1:30, and further comprising an oxyalkylene-modified silicone having an HLB of 10 or more with an oxyalkylene group at a side chain thereof.