30mm-480mm thickness | Ship to Worldwide | UV Resistant
At Excelite, our optical thick lexan polycarbonate sheet offers many technical advantages, including exceptional impact resistance, light transmission rates of up to 89%, UV protection, and virtually unbreakable properties.
Different with extruded polycarbonate solid sheets that ranges from 1mm to 25mm thickness, Excelite Ultra-Thick Polycarbonate Sheets are cast polycarbonate using a pouring mold technique. This process involves material melting and specific stress-relieving procedures for polycarbonate, enabling the production of sheets from 30mm, 40mm to 480mm thick.
Our super thick polycarbonate sheets feature glossy surfaces on both sides, exceptional optical clarity, and impressive strength, making them the preferred choice across numerous industries and applications.
It’s a perfect industrial polycarbonate material for polycarbonate machining and fabrication, such as CNC routing, engraving, rounding, punching, polishing, chamfering, polycarbonate milling, drilling, and grinding.
| Thickness Range(mm) | Process Type | Thickness Tolerance | Standard Dimensions | Primary Applications |
|---|---|---|---|---|
| 25mm-30mm | Extrusion | -0.8mm to +1mm | 1220x2440mm | Machine Guards, Sight Glasses, Protective shields |
| 32mm-60mm | Extrusion | +1mm to +2mm | 1000x2000mm | Pressure Vessels, High-pressure viewing windows |
| 60mm-100mm+ | Cast Polycarbonate | +3mm to +5mm | 1000x2000mm/Custom | Deep-sea equipment |
| Properties | Test Conditions | Test Method | Unit | Typical Values |
|---|---|---|---|---|
| Density | SO 1183-1 | g/cm3 | 1.2 | |
| Water absorption saturation | Water at 23°C | ISO 62 | % | 0.3 |
| Water absorption equilibrium | 23°C, 50% relative humidity | ISO 62 | % | 0.12 |
| Refractive index | Procedure A | ISO 489 | - | 1.587 |
| Tensile modulus | 1mm/min | ISO 527-1, -2 | Mpa | 2300 |
| Yield stress | 50mm/min | ISO 527-1, -2 | Mpa | 60 |
| Yield strain | 50mm/min | ISO 527-1, -2 | % | 6 |
| Nominal strain at break | 50mm/min | ISO 527-1, -2 | % | 50 |
| Flexural modulus | 2mm/min | ISO 178:2019 | Mpa | 2410 |
| Flexural strength | 2mm/min | ISO 178:2019 | Mpa | 113 |
| IZOD impact strength (Notched) | 23°C, 50% relative humidity, 3.2mm | ASTM D256-10 Method A | J/m | 921 |
| VICAT Softening Temperature | 50N, 50K/h | ISO 306: 2013 | °C | 145 |
| Thermal conductivity | 23°C | ISO 8302 | W/mK | 0.2 |
| Electrical strength | 23±2°C, 50±5 % RH, 48h | IEC 60243 -1: 2013 | k/V/mm | 14.29 |
| Volume resistivity | IEC 60231 -3: 2016 | Ω*m | 1.14E+15 Ω*m | |
| Surface resistivity | IEC 60231 -3: 2016 | Ω/sq | 3.18E+16 Ω/sq |
Thicker sheets should most certainly be used on structures where special highly impact resistance and high optical clarity request. The most common example would be in a pressure vessel. These days, there are variations of 40mm, 50mm, and 100mm polycarbonate sheets that have been designed specifically for use on pressure vessel window.
If the polycarbonate sheet is thicker than 30mm, it is cast technology. Cast polycarbonate offers superior optical clarity and thermal stability. One point to note is that Cast polycarbonate can have a sheet thickness variation of up to + 5-10%.
So if we should keep in high accuracy for special applications. We should consider polishing and milling processes.
Circular sight gauge, transparent tank window, industrial sight glass, polycarbonate mounted viewing window, bullet-resistant glass for military vehicles and installations, radiation shielding panels for nuclear facilities, gas and liquid pressure equipment which request high transparency, impact resistant.
Polycarbonate instrument components, like polycarbonate cylinders, plastic columns, windows, machine guards, manifolds, control panels, polycarbonate pipe fittings, conical parts, polygonal three-dimensional shapes, irregular parts, high-pressure polycarbonate high-end equipment, precision machinery.
Shatter proof screens, impact protection barriers, protective barriers, machine guards, impact resistance is essential for safety and security.
Thick polycarbonate sheets provide machining stock for electronic equipment housings, transparent covers, and protective enclosures. CNC machining creates internal cavities, mounting holes, and cable openings, while transparency allows visual inspection of enclosed components.
Yes, Excelite is a full-service manufacturer. Beyond supplying raw thick polycarbonate sheets (30mm–480mm), we offer precision CNC machining, drilling, bonding, and high-clarity surface polishing. Simply submit your CAD or STEP files, and our engineers will evaluate your drawings to deliver finished, ready-to-install components.
We offer standard and custom thicknesses ranging from 30mm up to 480mm.
Standard sheet sizes are 1000x2000mm, but we also provide custom cut-to-size blocks, thick cylinders, and heavy-duty inspection windows based on your exact equipment specifications.
We accommodate both prototype development and full-scale industrial production runs, with an MOQ starting from 1 piece for custom thick sheets or machined parts. Lead times typically range from 7 to 15 business days, depending on thickness, processing complexity, and order quantity. Express global shipping via air or ocean freight is available.
Yes. Every batch of Excelite thick polycarbonate sheets undergoes strict in-house quality control.
We can provide Material Test Reports (MTRs), UL V0 flame-retardant certification, ISO compliance, and third-party inspection documents upon request to meet high-pressure, military, or industrial safety requirements.
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