← Defect Guide
Surface Roughness
Rough surface or lack of gloss. Caused by inadequate flow, low mold temperature, etc.
◆ Common Causes
- •Melt temperature too low
- •Mold temperature too low
- •Injection speed too low
- •Poor mold surface condition
- •Excessive release agent
◆ Solutions
- ✓Raise melt temperature
- ✓Raise mold temperature
- ✓Increase injection speed
- ✓Polish mold surface
- ✓Reduce release agent quantity
◆ Resin-Specific Notes
PA
GF reinforcement can expose fibers at surface → raising mold temperature helps.
PC
Excellent surface gloss, but mold temperature is key.
ABS
Good surface reproducibility.
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This content is a field-reference summary. Final judgment requires on-site engineer verification.