The mechanism and countermeasures of uneven surface color of hot press products:

①The mold temperature is not uniform, and the part is too high. The mold temperature should be properly controlled;

②Poor fluidity of the molding material, resulting in uneven fiber distribution, generally can increase the molding pressure to increase the fluidity of the melt;

③Pigment and resin can't be mixed well in the process of color paste blending.