Production technology of composite shower tray

The invention particularly relates to a production technology of a composite shower tray, and belongs to the technical field of bathroom sanitary appliance products. The production technology of the composite shower tray comprises the following steps that S1, mold preparation is conducted, specifically, the surface of a mold is cleaned, and a mold release agent is sprayed; S2, mold surface treatment is conducted, specifically, a gel coat is uniformly sprayed to the surface of the mold, and spraying is conducted twice; S3, mold locking is conducted, specifically, the gel coat is sprayed for thethird time, and an inner mold and a back mold are closed and locked after the gel coat is located in a gelation state; S4, a castable material is poured, specifically, the castable material is pouredinto the mold by a screw feeder, and the pouring flow quantity is 8Kg/s; and S5, a product is formed, specifically, after the product is completely solidified, the formed product is taken out of themold and put into a drying