What Is the Difference Between Perspex, Acrylic, vs. Polycarbonate?

When choosing a transparent plastic material for signage, displays, glazing, fabrication or general projects, the terms Perspex, acrylic and polycarbonate often appear together — and are just as often misunderstood. At Canberra Plastics, we work with all three materials daily, and we’re frequently asked which option is best for a particular project. Although they may look similar at first glance, their properties, performance and ideal uses vary significantly.

Understanding these differences will help you choose the right material for your application, ensuring the best balance of clarity, strength, durability, appearance and cost.

Perspex: A Brand Name for High-Quality Acrylic

Perspex is not a different type of plastic — it is a brand name for a premium-grade acrylic sheet produced by Perspex International. Perspex and acrylic are essentially the same material, but Perspex is known for its exceptional clarity, UV resistance, and consistent manufacturing quality.

Key characteristics of Perspex:

• Extremely high optical clarity
• Excellent weather resistance for outdoor signage
• UV-resistant formulation reduces yellowing over time
• Available in a wide range of colours, tints and finishes
• Stronger and lighter than glass
• Suitable for laser cutting, engraving, bending and fabrication

Because it’s a premium product, Perspex tends to be positioned at the higher end of acrylic pricing. Many signage and fabrication professionals choose Perspex when appearance, longevity and consistency are essential.

Ideal uses for Perspex:

• High-end signage and 3D lettering
• Architectural and commercial displays
• Lightbox faces and illuminated features
• Retail installations
• Decorative panels
• Any application where visual quality is paramount

Acrylic: The Generic Material Category

Acrylic (also known as PMMA, polymethyl methacrylate) is the material category under which Perspex falls. When you see acrylic sheets for sale, they may be produced by various brands and manufacturers, each offering different levels of clarity, UV protection, colour range and thickness availability.

At Canberra Plastics, we supply and work with multiple brands of acrylic, including Perspex. All acrylic types share common advantages:

Key characteristics of acrylic:

• Lightweight and stronger than glass
• Highly transparent, typically up to 92% light transmission
• Available in clear, tinted, coloured, frosted and textured finishes
• Excellent for laser cutting and engraving
• Good weather resistance
• More affordable than polycarbonate

However, acrylic is less impact-resistant than polycarbonate. While it is more durable than glass, it can still crack or shatter under substantial impacts.

Ideal uses for acrylic:

• Indoor and outdoor signage
• Display cases and retail fixtures
• Lightboxes and signage panels
• Brochure holders and POS displays
• Custom fabrication and decorative work
• DIY home projects

Acrylic is the most commonly used material for general laser-cut signage due to its excellent finish, variety and cost efficiency.

Polycarbonate: The Impact-Resistant Option

Polycarbonate is an entirely different material from acrylic. While it is also clear and lightweight, its strength and durability are significantly greater. Polycarbonate is up to 200 times stronger than glass and 30 times stronger than acrylic, making it one of the most rigid transparent plastics available.

Key characteristics of polycarbonate:

• Incredibly high impact resistance — virtually unbreakable
• More flexible than acrylic
• High resistance to heat and sudden impact
• Less prone to cracking during fabrication
• Suitable for harsh environments and industrial applications

However, polycarbonate has some trade-offs:

• More expensive than acrylic
• Scratches more easily without a protective coating
• Not as naturally crystal-clear as acrylic
• Edges do not polish as cleanly when laser-cut

Polycarbonate is ideal for functional applications where safety and strength matter more than appearance.

Ideal uses for polycarbonate:

• Machine guards and safety screens
• Protective barriers and shields
• Glazing for sports facilities and public spaces
• Industrial equipment covers
• Security glazing
• Transport and marine applications

Which Material Should You Choose?

Choose Perspex if:

You want a premium, long-lasting acrylic sheet with outstanding clarity and colour options. Ideal for high-quality signage and architectural displays.

Choose Acrylic if:

You want an affordable, versatile material with excellent laser-cutting properties and great aesthetics. Perfect for most signage, displays and general projects.

Choose Polycarbonate if:

You need extreme strength and impact resistance. Best for machine guards, protective screens, industrial applications and environments that require safety and durability.

Canberra Plastics Can Help You Decide

Every project has its own requirements — and choosing the right material can make a noticeable difference in performance, appearance and lifespan. At Canberra Plastics, we work with Perspex, acrylic and polycarbonate daily, and we understand how each material behaves during cutting, fabrication and installation.

Whether you’re creating signage, a display, a prototype or a protective screen, we can recommend the best material, thickness and finish for the job. Our team provides precision laser cutting, fabrication and expert advice to help bring your project to life with the right combination of durability, clarity and cost-effectiveness.