When it comes to working with plastics, acrylic (often branded as Perspex in the UK) is one of the most versatile, durable, and visually striking materials available. Whether you’re planning a retail display, protective screen, furniture design, signage, or even an art installation, the right acrylic sheet can make all the difference.
But with so many options, different thicknesses, finishes, and even recycled variants, how do you know which one to choose? This guide will walk you through everything you need to know.
Why Acrylic / Perspex?
Before diving into the options, it’s worth understanding why acrylic has become the go-to choice for so many industries:
- Lightweight but strong: Half the weight of glass but highly impact-resistant.
- Optical clarity: Offers up to 92% light transmission (often clearer than glass).
- Versatility: Can be cut, routed, polished, bent, bonded, and shaped.
- Weather resistant: UV-stable and suitable for outdoor use.
- Sustainable options: Available in recycled forms like Greencast®.
Key factors to consider when choosing acrylic sheets
1. Thickness
- 2–3mm: Suitable for small panels, signage, light diffusers, and basic displays.
- 4–6mm: A good all-rounder for retail displays, protective screens, furniture inlays.
- 8–10mm+: Heavy-duty applications such as aquariums, load-bearing furniture, or large protective panels.
- 20mm+ (block acrylic): Often used in machining, sculptural pieces, or architectural features.
Tip: Always consider the size of your finished piece. Larger panels generally require greater thickness to prevent bowing or warping.
2. Finish
Different finishes change both the look and the function of the acrylic:
- Clear / Transparent: Ideal where maximum clarity and visibility are needed.
- Opal / Frosted: Great for diffusing light (used in light boxes, lamps, privacy panels).
- Coloured: Available in hundreds of shades, including translucent tints and fully opaque options.
- Mirror: Reflective surfaces for signage, interiors, displays, and decorative use.
- Textured / Satin: Fingerprint-resistant and softer in appearance; often used in furniture or office partitions.
3. Recycled vs Virgin Acrylic
- Virgin Acrylic: Manufactured from new raw material, ensuring maximum optical clarity and consistency.
- Recycled Acrylic (Greencast®): Produced entirely from recycled monomers but maintains the same physical properties as virgin sheets.
- Advantages: Environmentally friendly, reduces landfill waste, still highly durable.
- Best for: Companies and projects that prioritise sustainability.
4. Indoor vs Outdoor Use
- Indoor applications: Retail displays, signage, protective screens, furniture, exhibition stands.
- Outdoor applications: Point-of-sale displays, shop fascias, window glazing, garden features.
- Look for UV-stabilised acrylic for exterior use to avoid yellowing or brittleness.
5. Specialist requirements
Some projects call for more than just “standard” acrylic sheets.
- Impact-modified acrylic: Extra strength; used where safety is key.
- Food-safe acrylic: Certified for use in kitchens, cafés, and restaurants.
- Fire-rated acrylic: Meets safety requirements for public spaces and construction.
Examples of popular uses
- Retail Displays: Clear or coloured acrylic, polished edges for premium appearance.
- Protective Screens: 4–6mm clear acrylic, easy to clean and durable.
- Signage: Coloured acrylic with routed lettering, or frosted opal for backlit effects.
- Furniture: Thick block acrylic for tables, chairs, and contemporary designs.
- Art & Design: Recycled Greencast® for installations with an eco-focus.
Choosing the right supplier
The quality of your sheet and the finish of your final product depends heavily on the supplier. Look for:
- Precision cutting and CNC routing
- Polishing options (flame, diamond, or hand finishing)
- Custom fabrication services (bonding, bending, thermoforming)
- Sustainability credentials (such as offering Greencast®)
Final thoughts
The “right” acrylic sheet depends on what you need it for. A lightweight clear sheet may be perfect for signage, but not strong enough for a table. A mirrored finish could look stunning in a retail display, but wouldn’t work for outdoor use without the right UV protection. If in doubt, always speak to an experienced fabricator who can guide you through thickness, finish, and sustainability options. At Denny Plastics, decades of expertise in acrylic fabrication mean we can advise, cut, polish, and fabricate to suit any project, whether it’s a one-off design or large-scale production.