Both are clear, rigid plastics used for lenses, covers and glazing. The trade-off is toughness against scratch resistance and weathering.
Side by side
| Polycarbonate | Acrylic (PMMA) | |
|---|---|---|
| Impact strength | Very high | Low (can crack or shatter) |
| Clarity | Very good (~88–90%) | Excellent (~92%) |
| Scratch resistance | Moderate | Good |
| UV / weathering | Yellows unless UV-stabilized | Excellent |
| Heat resistance | Higher | Lower |
| Chemical resistance | Attacked by many solvents | Attacked by alcohols and solvents |
| Relative cost | Higher | Lower |
Typical, general comparisons. Individual grades vary; check the data sheet.
Choose Polycarbonate when
- The part must survive impact: guards, shields, safety parts
- Higher heat resistance is needed
Choose Acrylic (PMMA) when
- Optical clarity and scratch resistance matter most
- Outdoor exposure without coatings
- Cost is the priority
Clear polycarbonate · Acrylic · UV yellowing · Tell us the grade you run now →