Material Drying
1 views
PMMA Haze (Clouding)
Problem Phenomenon
Transparent parts are hazy, and light transmittance decreases.
Cause Analysis
Moisture degradation, shear overheating or mold surface contamination/insufficient polishing; PMMA transparency is extremely sensitive to moisture and temperature.
Solution
①Strict drying (moisture <0.1%); ②Control melt temperature and shear heat; ③Cavity mirror polishing and cleaning; ④Mold temperature 70~90℃.
Key Takeaway
Haze = three answers: water, heat, mold surface.
Was this helpful?
0 people found this helpful
Thank you for your feedback!