Engineering Grade Polycarbonate Sheet

Polycarbonate sheet (PC sheet) is an engineering plastic prized for its transparency, outstanding optical clarity, half the weight of glass, and virtually unbreakable toughness. Engineering grade polycarbonate takes these properties further — thicker, denser, and built for the most demanding industrial environments including machinery guards, automotive, safety, and construction.

Thick polycarbonate is ideal for polycarbonate fabrication and precision machining.

Excelite Engineering-grade polycarbonate sheet offers exceptional impact strength, dimensional stability, low moisture absorption, high heat deflection, and electrical insulating properties. It can be cut into bespoke shapes and sizes, and is ideal for polycarbonate machining of complex components, fabrications, and heavy-duty applications across a wide working temperature range.

Unlike standard clear polycarbonate sheet, which is typically used for guards and screens, engineering grade polycarbonate is not optically clear — it is engineered for structural and insulating performance.

Need a thinner option? Explore our clear flat polycarbonate sheet and roll for lighter-duty applications.

Key Properties

• High toughness and high stiffness
• Electrical insulation
• Self-extinguishing (flame retardant)
• Good machinability — drill, rout, cut to size
• Easy to polish to a smooth finish
• High heat deflection temperature
• Wide working temperature range
• Good weldability and bondability
• UV stable (UV2 protection)
• Not optically clear
• Available thicknesses: 10mm, 12mm, 15mm, 18mm
• Colours: Clear, Black

Availability

Applications

• Electrical insulators and relay components
• Polycarbonate insulating parts and coil bodies
• Plugs and apparatus engineering housings
• Transparent guards and machine guards
• Glazing and glass alternatives
• Bullet-proof panels and helmet visors
• Sound barriers and protective covers
• All types of lights and rear vehicle lights
• Medical consumables

Why Choose ExcelitePlas?

ExcelitePlas is an Australian supplier of premium engineering plastics, stocking a wide range of polycarbonate sheets and accessories. We offer nationwide delivery and Melbourne showroom pickup. For custom sizes or bulk orders, contact our sales team.

FAQ

1. Is engineering grade polycarbonate sheet UV resistant?

Yes. All Excelite polycarbonate sheets are UV resistant. Engineering grade polycarbonate normally carries UV2 protection, making it suitable for outdoor and long-term applications.

2. What is the thickest polycarbonate sheet available?

Extruded polycarbonate sheets range from 2mm to 25mm. Cast polycarbonate can reach 100mm or more. At Excelite, we stock 1mm to 18mm. For special requirements, contact our sales team.

3. What is the difference between acrylic machining and polycarbonate machining?

Polycarbonate is tougher and more impact resistant than acrylic, making it better suited for heavy-duty machining. Acrylic is more brittle but offers superior optical clarity and is easier to polish. Learn more about polycarbonate properties on Wikipedia.

4. Can engineering grade polycarbonate sheet be cut to size?

Yes. Engineering grade polycarbonate can be cut, drilled, routed, and machined into bespoke shapes. It is ideal for complex fabrication and component manufacturing. See our guide on how polycarbonate sheets are made for more context.

5. What is the difference between engineering grade and standard polycarbonate sheet?

Engineering grade polycarbonate is thicker, denser, and designed for heavy-duty industrial applications such as machine guards, electrical insulators, and structural components. Standard polycarbonate is typically thinner and used for glazing, roofing, and light-duty applications.

6. Is engineering grade polycarbonate sheet suitable for outdoor use?

Yes. Excelite engineering grade polycarbonate sheets are UV stable, making them suitable for outdoor applications requiring long-term weather resistance. For roofing applications, also consider our polycarbonate roofing range.

7. Can polycarbonate sheet be welded or bonded?

Yes. Engineering grade polycarbonate has good weldability and bondability, making it easy to join using adhesives or ultrasonic welding for fabrication purposes.