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	Home > Resources > Processing Guides, Secondary Operations, Joining Techniques and Troubleshooting Help > Troubleshooting - Injection Molding

Troubleshooting - Injection Molding

We have analyzed most of the processing defects that can occur during injection molding. Look through the following catalogue to determine possible causes of processing defects. Most importantly, we suggest specific corrective actions that may help you stop processing defects.


		Overview Please login to view document.



		Black Discoloration Fault category: color Please login to view document.



		Blackening Fault category: color Please login to view document.



		Cloudiness Fault category: color Please login to view document.



		Color Inconsistences Fault category: color Please login to view document.



		Consistent Discoloration Fault category: color Please login to view document.



		Deeper Color At Weld Edges Fault category: color Please login to view document.



		Rings Around The Gate Fault category: color Please login to view document.



		Stress Whitening Fault category: color Please login to view document.



		Deformation of Part Fault category: ejection characteristics Please login to view document.



		Ejector Marks Fault category: ejection characteristics Please login to view document.



		Mould Opening Noise Fault category: ejection characteristics Please login to view document.



		Mould Will Not Open Fault category: ejection characteristics Please login to view document.



		Part Remains in Mold Cavity Fault category: ejection characteristics Please login to view document.



		Part Ruptures During De-mold Fault category: ejection characteristics Please login to view document.



		Sticking Sprue Fault category: ejection characteristics Please login to view document.



		Damaged Grain on the Molded Article Fault category: gloss Please login to view document.



		Dull Spots Fault category: gloss Please login to view document.



		Frosting Fault category: gloss Please login to view document.



		Localized, Glossy, Finger-Shaped Depressions Fault category: gloss Please login to view document.



		Matt Surface Defects Near Hot Runner Units Fault category: gloss Please login to view document.



		Poor Gloss with Polished Surfaces Fault category: gloss Please login to view document.



		Poor Matt Effect on Textured Surfaces Fault category: gloss Please login to view document.



		Variations in Gloss on the Surface of the Molded Article Fault category: gloss Please login to view document.



		White Spots Fault category: gloss Please login to view document.



		Defective Integral Hinges Fault category: mechanical problems Please login to view document.



		Inadequate Weld Line Strength Fault category: mechanical problems Please login to view document.



		Mechanically Defective Part Fault category: mechanical problems Please login to view document.



		Cold Slug Fault category: other surface defects Please login to view document.



		Large Bubbles Fault category: other surface defects Please login to view document.



		Macroscopic Cracks Fault category: other surface defects Please login to view document.



		Microscropic Cracks Fault category: other surface defects Please login to view document.



		Small Bubbles Fault category: other surface defects Please login to view document.



		Tear Drops Fault category: other surface defects Please login to view document.



		Voids Fault category: other surface defects Please login to view document.



		Flash Fault category: part dimensions Please login to view document.



		Incorrect Dimensions Fault category: part dimensions Please login to view document.



		Part Fails To Fill Properly Fault category: part dimensions Please login to view document.



		Variations in Section Thickness (Target / Actual) Fault category: part dimensions Please login to view document.



		Variations in Weight Fault category: part dimensions Please login to view document.



		Cycle Time Too Long Fault category: processing Please login to view document.



		Melt Cushion Varies in Size Fault category: processing Please login to view document.



		Mold Corrosion Fault category: processing Please login to view document.



		Stringing Fault category: processing Please login to view document.



		Unusual Smell Fault category: processing Please login to view document.



		Brown or Black Spots Fault category: specks Please login to view document.



		Craters Fault category: specks Please login to view document.



		Grey Specks Fault category: specks Please login to view document.



		Jetting Fault category: streaking Please login to view document.



		Knuckle Line Fault category: streaking Please login to view document.



		Large-Area Silver Streaks Fault category: streaking Please login to view document.



		Overheating Streaks Fault category: streaking Please login to view document.



		Surface Marred by Linear Grooves Fault category: streaking Please login to view document.



		U-Shaped Streaks Open Towards the Flow Direction Fault category: streaking Please login to view document.



		Flaking Fault category: surface defects Please login to view document.



		Blisters Fault category: surface irregularities Please login to view document.



		Delamination Fault category: surface irregularities Please login to view document.



		Grooves Fault category: surface irregularities Please login to view document.



		Localized Sink Marks Fault category: surface irregularities Please login to view document.



		Notches Along Weld Line Fault category: surface irregularities Please login to view document.



		Sinking Over Entire Surface of Part Fault category: surface irregularities Please login to view document.



		General Warping Fault category: warping Please login to view document.