To provide a resin molding for a water section product which excels in heat resistance while attaining a new pattern by particles.
The manufacturing method of the resin molding having a matrix and particles dispersed in the matrix, which is for a water section product, includes: the step of casting the particles and the matrix in a molding die; and the step of curing them. In the method, at least the molding die is tilted in the curing step, the matrix consists of an epoxy resin blended substance, the particles are composed of an epoxy resin blended substance different from the matrix, and the Feret diameter, which is calculated by cutting the resin molding for a water section product in the thickness direction, measuring 100 particles on the section and seeking for an arithmetic average, has a size of 1 mm when the surface of use of the resin molding for water furnishings is taken as the base line.
NAITO YUKIO
KOBAYASHI TOSHIO
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