Typical polycarbonate
- High impact for lenses and machine guards
- UV stabilized grades for outdoor exposure
- Higher material cost than PMMA
Material comparison
Acrylic can win on scratch resistance and optics. Polycarbonate wins on impact when the lens must survive handling or assembly.
Material comparison
Both can be molded clear. The service environment breaks the tie.
Display covers that never see impact may favor acrylic for scratch and clarity.
Handheld devices and industrial windows usually need polycarbonate impact reserve.
Resin choice
Use this routing before you lock the BOM. NetProto molds both once the resin is specified on the quote.
Decision table
Qualitative tradeoffs for molded parts. Confirm shrink, fill, and tooling details on the material guide.
| Factor | polycarbonate | acrylic (PMMA) |
|---|---|---|
| Impact | High | Lower, cracks on sharp blows |
| Scratch | Softer surface | Harder, resists scuffing |
| UV | Stabilized grades available | Needs UV grade for outdoor |
| Chemicals | Avoid some solvents | Sensitive to alcohols and cleaners |
Before you quote
The instant quote uses your material choice for fill, gate, and steel assumptions.
Impact or drop test requirement
Outdoor UV and rain exposure
Coating or hard coat plan
Thickness and optical distortion budget
Material guides
These library pages carry datasheets, DFM notes, and quote checklists.
Open the Polycarbonate molding guide.
PolycarbonateOpen the Acrylic (PMMA) molding guide.
Acrylic (PMMA)Continue exploring
Open a sibling guide or jump to the full material library.
All comparison guides.
Compare hubDeep guides per resin family.
Materials libraryOpaque housing versus clear window.
ABS vs PCEngineering resin wear pair.
Nylon vs acetalFAQ
Yes. Tinted PC and PMMA are common. Match the colorant system to the optical grade.
Next step
Upload once, switch resin in the quote flow, and compare piece price on the same tool. NetProto manufacturing is ISO 9001 certified.