This situation is generally because the mold is not clean, resulting in the filling of raw materials, there are bubbles generated, raw materials and glass mold can not be closely fit, it will produce water lines. Scratches are the same reason, if the glass surface is broken, the surface of the produced acrylic sheet will also have scratches.

Acrylic injection molding blisters and wavy lines how to deal with the general solution is to increase the mold temperature (with its upper limit of mold temperature or close to the upper limit) and liquid acrylic into the mold temperature, shorten the filling time to increase the flow rate, so that its viscosity even in the fast filling is relatively low, the viscosity difference is not too large, so as to eliminate these surface defects.