Processing on injection molding machines

• How can demolding cracks be avoided?

• How can mold filling be improved?

• Does PLEXIGLAS^® molding compound require drying prior to processing? 

• Are special injection-molding machines (screws) required for processing PLEXIGLAS^® molding compound? 

• At which temperatures can PLEXIGLAS^® molding compounds be predried?

• Which screw speeds are specified for processing PLEXIGLAS^® molding compound? 

• How can bubbles be avoided inside a thick-walled molding?

• How can a finely grooved surface (orange-peel effect) be avoided on moldings?

• How can a chipped surface and striation be avoided in moldings?

• How can sink marks be avoided on moldings?

• How can dull spots be avoided behind sharp edges or in the gate area?

• How can the sprue breakage be avoided when the mold is opened?

• How can air bubbles be prevented from becoming entrapped at the edges of a molding?

• How can warpage of the moldings after ejection be prevented ?

• How can deformation of the moldings after ejection be prevented ?

• How can weld lines be prevented behind inserted recasses and letters?

• How can creases be prevented in thick-walled moldings?

• How can moldings be prevented from breaking apart on ejection?

• How can streaking, haze and other irregularities be prevented inside the molding?

• How can PLEXIGLAS^® molding compound be prevented from drooling at the nozzle?

• What can cause milky streaks?

• How can brown or black particles be prevented in moldings?

• How can black streaks and dark clouding and / or milky bubbles be avoided?

• How can burns be prevented in moldings?

• Which driers are suitable for drying PLEXIGLAS^® molding compounds? 

• What wall thicknesses are possible for moldings made of PLEXIGLAS^®? 

• How can shrinkage during processing be influenced?

• What is an economical way of separating the sprue?

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