Molds & Tooling
2 views
MP poor surface gloss
Problem Phenomenon
MP product surface gloss <60%, below the 80% requirement, dull appearance
Cause Analysis
mold surface rough Ra>0.4μm; MP high crystallinity, surface microcrystals scatter light; cooling rate improper
Solution
1) polish the mold to Ra<0.1μm mirror finish; 2) raise mold temperature to delay crystallization and reduce scattering; 3) add nucleating agent to control crystal size
Key Takeaway
poor gloss is caused by mold roughness and crystal scattering; polishing the mold and controlling crystallization are key
Was this helpful?
0 people found this helpful
Thank you for your feedback!