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1. The setting of drying time and temperature does not meet the technological requirements.
The setting of drying time and temperature should conform to the properties of co-extruded materials, especially water absorption and volatility. Our company ASA material will give you drying time and technical parameters, for example, ASA requires drying conditions of 95-98℃ and 1.5-2 hours (hot air drying). If the requirements are not met, the surface layer of co-extrusion material will be "bubbled" and rough.
2. The vacuum system of the main machine of the bottom tile production fails.
The moisture and volatiles contained in the ingredients of the bottom tile will also appear "bubbling" phenomenon during molding when the host machine fails in vacuum, and the co-extruded layer will become like rain hitting the beach, which is not beautiful.
