Customized PC+PMMA Composite Sheets Manufacturer

The structural strength of Polycarbonate fused with the optical clarity of PMMA -- engineered as a single bonded sheet for applications where neither material alone is sufficient.

Product Gallery

High-performance PC+PMMA composite sheets, combining impact resistance and optical clarity for demanding industrial applications.

Material Engineering

Why This Composite Exists — and Why It Matters

PC alone yellows under UV and scratches easily. PMMA alone shatters under impact. The PC+PMMA composite was engineered to eliminate both failure modes simultaneously — delivering a material that performs where single-layer plastics fail.

At Winson, we control the co-extrusion process in-house, which means we control the bond integrity, thickness ratio, and optical transmission — not a third-party laminator.

Iris's Procurement Insight

"Most sourcing failures with composite sheets come from hidden delamination at the bond interface — a defect that doesn't appear until field deployment. Our 100% peel-strength inspection eliminates this risk at source."

— Iris, Partner & Chief Quality Auditor, Winson Optics

PC+PMMA Composite Sheet

Co-extrusion layer structure — cross-section view

Hard Coat (Optional)

≤ 5 μm

PMMA Layer Optical Clarity · Scratch Resistance

0.3–2 mm

Co-extrusion Bond Interface

—

PC Core Layer High Impact · Structural Integrity

1–8 mm

PMMA Layer (Dual-side option)

0.3–1 mm

Co-extrusion bonded · No delamination risk · 100% peel-strength inspected

PC+PMMA composite sheet product sample showing optical clarity and structural layers

Optical Transmission ≥90% Surface Hardness 3H+ (PMMA face) Total Thickness 1.3–10 mm RoHS & REACH Compliant

Full Technical Data

Specifications & Customization Range

Every parameter below is adjustable within the listed range. Your drawing defines the final spec -- we engineer to it.

Dimensional Range

Total Thickness: 1.5 - 12 mm
PMMA Layer Ratio: 5% - 30% per side
Max Sheet Size: 2440 × 1220 mm
Thickness Tolerance: ± 0.1 mm
Custom Cut Shapes: Available (CNC)

Optical & Physical

Light Transmittance: ≥ 90%
Haze Value: ≤ 1.5%
Surface Hardness: 3H (pencil, PMMA face)
Impact Strength (Izod): ≥ 600 J/m
Heat Deflection Temp.: 90 - 115°C
Density: 1.18 - 1.20 g/cm³

Customization Options

Color Tinting

Custom Pantone matching for PMMA layer

Hard Coating (AR/AS)

Anti-reflection or anti-static surface treatment

Silk-Screen Printing

In-house automated printing line, up to 6 colors

Dual-Side PMMA

Symmetric structure for equal-face applications

Precision CNC Machining

Holes, slots, chamfers per your technical drawing

UV Stabilizer Package

Enhanced outdoor durability, 5000h UV aging rated

Compliance & Certifications

ISO 9001:2015 RoHS 3 Compliant REACH SVHC Cleared UL94 V-0 (Optional) FDA-Grade Material Available

Where It's Used

Sector Applications

PC+PMMA composites are specified across industries where display clarity meets physical durability requirements.

Discuss your application

Smart Home

Touch Control Panels

HMI panels, wall-mount smart controllers, thermostat covers -- requiring a pristine optical surface that resists daily fingernail contact.

Thickness: 2-4 mm typical

Silk-screen + CNC cutouts

Medical device display panel using PC+PMMA composite

Medical Devices

Diagnostic Equipment Covers

Patient monitor front panels, portable diagnostic device housings -- where chemical disinfectant resistance and optical clarity both matter.

FDA-grade material option

IPA & bleach resistant

Industrial Control

HMI Display Windows

Factory floor HMI protective windows, machine control panel overlays -- must survive vibration, impact, and chemical exposure.

Thickness: 4-8 mm typical

Anti-static surface option

Automotive

In-Cabin Display Panels

Center console overlays, instrument cluster covers, and EV charging station interfaces requiring UV-stable optical panels.

UV stabilizer package

Thermoforming compatible

Technical FAQ

Questions Engineers Actually Ask

Answers written by our engineering team -- not marketing.

What is the minimum order quantity for a custom thickness/color combination?

For standard clear PC+PMMA in standard thicknesses (2mm, 3mm, 4mm), MOQ starts at 50 sheets. For custom color PMMA layers or non-standard thickness ratios, MOQ is typically 100-200 sheets depending on the co-extrusion run setup. Prototype quantities (5-20 sheets) are available at a setup surcharge for engineering validation purposes.

Can the PMMA layer be applied to both sides (dual-face composite)?

Yes. Our co-extrusion line supports PMMA/PC/PMMA symmetric three-layer structures. The PMMA ratio per side can be set independently (e.g., 15% front / 10% back). Dual-face structures are recommended for applications where both faces are exposed to contact or UV -- such as freestanding display panels or two-sided HMI covers.

How does the bond interface perform under thermal cycling? Will it delaminate in automotive environments?

Because our sheets are co-extruded (not adhesive-laminated), the PC/PMMA interface is a molecular-level melt bond -- not a glue layer. Thermal cycling tests per IEC 60068-2-14 (-40°C to +85°C, 100 cycles) show zero delamination in our standard grades. For extended automotive temperature ranges (-40°C to +105°C), we offer a modified resin formulation -- please specify in your RFQ.

Can you match a specific Pantone color for the PMMA tint layer?

Yes, with a color matching process. You provide the Pantone reference (or RAL/NCS), we produce a color chip in PMMA resin for your approval before committing to the composite sheet production run. Color matching adds approximately 5-7 business days to the prototype lead time. Delta E ≤ 1.5 is our standard acceptance criterion.

What documentation do you provide for EU customs and compliance audits?

Standard documentation package includes: ISO 9001 certificate of conformance, RoHS 3 test report (IEC 62321 series), REACH SVHC declaration, material data sheet (TDS), batch-specific QC report with measured values (transmittance, haze, thickness, peel strength), and packing list with HS code. Additional documents (MSDS, third-party test reports, factory audit support) are available on request.

Can you perform silk-screen printing on the composite sheet surface?

Yes. We operate an in-house automated silk-screen printing line capable of up to 6-color printing on the PMMA surface. Registration accuracy is ±0.1mm. We can print functional elements (button labels, logos, bezels, gradient effects) directly on the sheet before or after CNC cutting. UV-cured inks with chemical resistance options are available for medical and industrial applications.