It is provided a raw material composition, having various uses, comprising components (1) to (3) as described below: (1) a composition comprising (a) a polymer component including a homopolymer of vinyl acetate or a partial hydrolysate thereof, or a copolymer of vinyl acetate and one or more monomers selected from a group consisting of acrylic esters, amide acrylate, acrylic acid, methacrylic acid, methacrylic esters, maleic acid, maleic anhydride, and fumaric acid or a partial hydrolysate thereof; (2) a composition comprising one or more compounds selected from a group consisting of silicone compounds, polyvinyl acetate, cetyl methyl cellulose, polyvinyl alcohol, and epoxy resins; and (3) organic or inorganic powder.