PC vs PMMA vs Transparent ABS: Choosing the Right Clear Plastic

Light transmittance comparison:

- PMMA: 92-93% - the clearest, with excellent optical clarity for lenses and displays - PC: 88-90% - very clear but with slight yellowness; haze ~1% - Transparent ABS (MABS): 85-90% - clear but less optically pure than PMMA

For optical applications (lenses, light guides, displays), PMMA wins. For products where slight haze is acceptable but impact resistance matters, MABS or PC are better. Note that PC yellows over time under UV exposure, which matters for outdoor transparent parts.

When you compare grades rather than polymer families, the gap narrows: high-clarity MABS grades such as Tianjin Dagu DG-513/DG-519 and Toray 920 reach 88%+ transmittance with haze below 3%, while maintaining ABS-level toughness. That is why Jinsu's transparent ABS line is a popular substitute for PMMA in appliance windows and cosmetic packaging.

This is where the materials diverge most:

- PC: Izod impact 60-70 kJ/m² (unfilled) - extremely tough, the standard for safety glazing and protective covers - MABS: 13-15 kJ/m² - good toughness, similar to ABS - PMMA: 1-2 kJ/m² - brittle, cracks on impact; needs thicker walls

PC is ~30-50x tougher than PMMA. For products that get dropped, bumped, or must survive outdoor impacts (safety shields, machine guards, lighting covers), PC is the choice. PMMA requires careful design (no sharp corners, adequate thickness). MABS sits between, good for consumer products with moderate impact demands.

Real-world validation matters more than datasheets. In Jinsu's drop-test validation, our PC-GF10 grade survived 2m drops onto concrete without cracking - outperforming generic PC by 40%. If your part faces repeated drops or cold-environment impacts, ask us for the drop-test report alongside the TDS before you commit to a grade.

Environmental resistance differs significantly:

- UV: PMMA has excellent UV stability (20+ years outdoor); PC yellows without UV stabilizers; MABS is moderate - Chemical: PMMA is attacked by solvents and cleaners (crazing); PC resists oils but not strong alkalis; MABS has moderate resistance - Scratch: PMMA is the hardest (hard-coat friendly); PC scratches easily, needs hard coating; MABS is moderate

Outdoor transparent parts: PMMA (or PC with UV-stabilized grade). Automotive glazing: PC with UV coating. Consumer electronics covers: PC or MABS with hard coat.

A well-chosen grade removes most of these compromises: Jinsu's UV-stabilized PC grades (e.g. Cangzhou Dahua CH-5227) resist yellowing for outdoor enclosures, while our FR PC combines transparency with UL94 V-0 flame retardancy where safety standards demand it.

Transparent parts are the most defect-sensitive parts in injection molding. A material that looks right on paper can fail in the mold. Compare before you commit:

Three rules from Jinsu's molding engineers:

1. **PC** - never skip drying; wet PC causes splay and strength loss. Stress cracking appears near gates and inserts - design generous radii and consider annealing for high-retention-force parts. 2. **PMMA** - needs high mold temperature and slow fill to prevent crazing. Thin-wall PMMA parts are high-risk; switch to MABS if wall thickness is below 1.5mm. 3. **MABS** - easiest to process of the three, but black specks from degraded resin or long residence time ruin optical surfaces. Purge thoroughly before optical-grade runs.

If your part has thin walls, complex geometry, or inserts, MABS gives the widest processing window and the lowest scrap rate - a cost factor most comparisons ignore.

Transparent plastics are widely used in food contact, medical devices, children's toys, and automotive interiors - all regulated applications. Verify compliance before you spec:

- **Food contact**: PMMA and MABS grades with FDA 21 CFR 177.1010/177.1020 and EU 10/2011 declarations for containers and packaging - **Medical**: USP Class VI grades for device housings and fluid-contact parts - **Flame retardancy**: UL94 ratings from V-2 (general electronics) to V-0 (power tools, appliances, EV components) - **Automotive interior**: low-VOC and fogging-compliant grades for cabin parts

Jinsu offers FDA-compliant MABS and UL94 V-2 rated transparent PC grades for regulated applications, plus UL94 V-0 FR PC for stricter requirements. Request the compliance documentation (FDA declaration, EU 10/2011 certificate, UL yellow card) together with your quote - we provide it upfront, not after the order.

Generic-grade comparisons only get you so far. Supplier value shows in the grades that solve your specific problem:

- **UV-resistant PC**: Cangzhou Dahua CH-5227 - UV-stabilized, stays clear and colorless outdoors; ideal for signage, outdoor enclosures and lighting covers - **Transparent FR PC**: Cangzhou Dahua CH-8107 - combines transparency, UL94 V-0 flame retardancy and UV resistance in one grade; a rare combination for EV charging housings and appliance safety parts - **High-clarity MABS**: Tianjin Dagu DG-513 (general purpose), DG-519 (chemical resistant) and Toray 920 - 88%+ transmittance with ABS toughness; the drop-in answer for cosmetic packaging, food containers and appliance windows - **Scratch-resistant PMMA**: hard-coat friendly grades for displays and touch panels

Jinsu also compounds custom transparent grades - tinted, impact-modified, or UV-stabilized to your spec - on our 14 twin-screw extrusion lines. If you are buying generic PC/PMMA/MABS today, ask what an enhanced grade would change for your part's performance and your total cost.

Typical price ranking (per kg, China FOB, 2026 estimates): PMMA < MABS < PC. PC is typically 20-40% more expensive than PMMA. Prices are indicative and subject to raw material market fluctuations. Always request a current quote for budgeting.

Choose by application:

- Lighting covers, machine guards, safety shields: PC - Lenses, displays, signage, point-of-purchase displays: PMMA - Food containers, cosmetic packaging, toys, appliance windows: MABS - Automotive headlamp lenses: PC (with UV coating) - Greenhouses, skylights: PMMA (UV stability)

On pricing, Jinsu offers competitive pricing with transparent cost breakdowns - material, logistics and duties itemized so you can verify every line. Contact us for real-time quotes based on your volume and Incoterms (EXW/FOB/CIF/DDP).

When in doubt, test with your actual part: molding trials with all three materials and real-world drop/weather testing beat any datasheet comparison.

In 2026, buyers care as much about supply security as price. Here is what Jinsu's supply chain means for your production line:

- **Capacity**: 3,000+ tons/month across 14 twin-screw compounding lines - we scale with your orders - **Stock**: common transparent grades (Dagu DG-513/DG-519, Toray 920, Dahua CH-8107/CH-5227) kept in stock for rapid dispatch - **Multi-source**: brand resin (Tianjin Dagu, Toray, Cangzhou Dahua) plus our own compounds reduce single-supplier risk - **Lead time**: stocked grades ship within days; custom compounds typically 1-2 weeks; samples sent worldwide - **Quality**: ISO 9001 certified process with batch-level COA (Certificate of Analysis) on every shipment

One supplier, three material families, and the documentation you need - that is the sourcing model that keeps your line running. Ask about our inventory position before you place your next order.