Substrate with film and method for producing same

Provided is a particulate base material with a coating film, said base material being capable of forming a porous film layer that maintains pores of a porous body and is not susceptible to the occurrence of powder falling when applied to the surface of the porous body. A coated substrate which comprises a substrate and a coating of a fluororesin that covers the surface of the substrate, the substrate being particles, and the melt flow rate of the fluororesin being 0.01-100 g/10 minutes. 提供：涂覆于多孔体的表面时、能形成维持多孔体的孔、且不易产生落粉的多孔膜层的颗粒状的带覆膜的基材。一种带覆膜的基材，其具有：基材、和覆盖前述基材的表面的氟树脂的覆膜，所述基材为颗粒，前述氟树脂的熔体流动速率为0.01～100g/10分钟。