How to solve the dull surface of injection molded parts?

 Low gloss means that the surface is dull and dull, and the transparency of transparent products is low. There are many reasons for poor gloss. Mould manufacturers   ,General product surface gloss defects can be divided into the following three types: plastic mold failure, improper molding conditions, improper use of raw materials.


If there are scratches, corrosion, micropores and other defects on the surface of the plastic mold, it will be copied to the surface of the plastic part, resulting in poor gloss. The surface of the mold cavity must be kept clean, and oil and water stains must be removed in time.


Insufficient raw materials can also lead to poor surface gloss of plastic parts.

Discoloration of raw materials or colorants resulting in poor gloss. High temperature resistant raw materials and colorants should be used.


If the injection speed is too fast or too slow, the injection pressure is too low, the pressure holding time is too short, the boost pressure is not enough, etc., these conditions may lead to poor surface gloss of the plastic part.



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How to deal with the deformation of injection mold? User avatar anselme    


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