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1913 views, 1 edit(s), 732 characters(s) Page last modified 23:35, 23 Mar 2011 by adsk_arutherford

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Gloss mark

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Dull surface patches on the glossy or shiny surface of a molded part.

Different flow behaviors of the plastic at the mold wall cause differences in the gloss finish of a part. They are due to different cooling conditions and shrinkage. Dull surface patches can be removed by drying the material, decreasing the injection speed, or increasing back pressure.

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