Abstract: To provide a coating material capable of forming a film having both a sufficiently high film strength and a photocatalytic function by an easy method, there is provided a coating material comprising a particle group A, a particle group B and a solvent, wherein the number of necking particles of the particle group A is larger than the number of necking particles of the particle group B, wherein “the number of necking particles” here is referred to the total number of particles constituting all necking particles with each constituting particle being considered as the unit particle.