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Injection Injection Molding

Surface Finish (Low Gloss).

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Surface Finish (Low Gloss). Gloss is the appearance of the surface of the molded part when light is reflected off of it. Molds that are textured or resins that are filled have an inherently reduced level of gloss when compared to highly polished mold surfaces. Possible Solutions Clean mold surface. If the part design allows increase the polish of the molding surface. Increase cylinder temperature. This applies to molds that have a polished surface. Increase injection pressure. This applies to molds that have a polished surface. Increase injection speed. This applies to molds that have a polished surface. Increase mold temperature. This applies to molds that have a polished surface. Decrease cylinder temperature. This applies to molds that have a textured surface. Decrease injection pressure. This applies to molds that have a textured surface. Decrease injection speed. This applies to molds that have a textured surface. Decrease mold temperature. This applies to molds that have a textured surface. Increase the melt temperature. Make sure venting is adequate.
  • Surface Finish (Low Gloss). Gloss is the appearance of the surface of the molded part when light is reflected off of it. Molds that are textured or resins that are filled have an inherently reduced level of gloss when compared to highly polished mold surfaces.
  • Possible Solutions
  • Clean mold surface.
  • If the part design allows increase the polish of the molding surface.
  • Increase cylinder temperature. This applies to molds that have a polished surface.
  • Increase injection pressure. This applies to molds that have a polished surface.
  • Increase injection speed. This applies to molds that have a polished surface.
  • Increase mold temperature. This applies to molds that have a polished surface.
  • Decrease cylinder temperature. This applies to molds that have a textured surface.
  • Decrease injection pressure. This applies to molds that have a textured surface.
  • Decrease injection speed. This applies to molds that have a textured surface.
  • Decrease mold temperature. This applies to molds that have a textured surface.
  • Increase the melt temperature.
  • Make sure venting is adequate.

Related Knowledge

Injection Molding

Source

Imported from Molding Defects All Platforms spreadsheet

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