Acrylic vs PS vs Sunboard Sheets: Which One Should You Buy?

Acrylic, PS and sunboard look alike on a shelf, but each suits a different job, budget and lifespan. Walk into any sign shop, retail store or exhibition stall in Bangalore and you will find sheet material at work: the backlit signboard, the lightweight display stand, the clear shelf divider and the printed standee.

Choosing the wrong sheet means cracked edges, yellowed panels or money spent on strength you did not need. This guide explains each material in plain language so you can pick the right one the first time.

1. Acrylic Sheets: Premium Clarity and Long Life

Acrylic (PMMA) is the sheet to choose when you want a glass-like look without the weight or the risk of shattering. Cast acrylic, such as the Maestroglas Cast Acrylic range, is known for crystal-clear transparency, a flawless surface finish and strong weather resistance.

Key strengths

• Excellent optical clarity, close to glass
• About half the weight of glass and far more impact resistant
• Good UV and weather resistance, so it stays clear outdoors
• Easy to cut, laser engrave, drill, polish and thermoform
• Available in clear, opal, colour, translucent, fluorescent, mirror and scratch-resistant finishes

Best for

• Backlit and illuminated signage
• Retail displays, shelves and counter stands
• Interior design, partitions and wall panels
• Lighting solutions and diffusers
• Architectural projects and sanitary ware
• Donation boxes, trophies and name plates

Keep in mind: Acrylic costs more per sheet than PS or sunboard, and it can scratch if handled roughly. Leave the protective film on until the job is finished.

2. PS Sheets: Light, Versatile and Budget-Friendly

Polystyrene (PS) sheet is a rigid, lightweight and economical plastic that is easy to cut and thermoform. It suits indoor and short- to medium-term jobs. Extruded PS sheets typically come in thin gauges such as 1 mm to 4 mm, which gives coverage and stiffness without bulk.

PS also comes in specialised forms. Maestroglas offers PS mirror sheets, light guide plates (LGP) and light diffusion sheets, widely used in lighting and display work.

Key strengths

• Very economical, a smart pick for high-volume jobs
• Lightweight and easy to handle
• Smooth, printable surface
• Easy to cut, score and thermoform
• Suited to mirror, light guide and diffusion applications

Best for

• Packaging and vacuum-formed trays
• Point-of-sale displays and lightweight covers
• Industrial applications and protective panels
• Hobby, crafting and model making
• Light guide panels and diffusers for LED signage

Keep in mind: PS is more brittle than acrylic and is not ideal for long-term outdoor use, where sunlight can yellow it over time. For anything that must last outdoors, choose acrylic.

3. Sunboard (PVC Foam Board): The Lightweight Workhorse

Sunboard, the popular Indian trade name for PVC foam board, is a closed-cell foam sheet with a smooth, matte surface. It weighs very little, takes print and vinyl well, and cuts easily with a knife, saw or router. It is also water resistant, so it outlasts paper-based boards in damp conditions.

In the Maestroglas range, sunboard comes in several grades, from MaestroEco foam boards (2 mm to 15 mm) to MaestroHard for heavier-duty use.

Key strengths

• Extremely lightweight yet rigid
• Water and moisture resistant
• Excellent surface for digital printing, vinyl and paint
• Easy to cut, drill, screw and glue
• Budget friendly compared with acrylic

Best for

• Advertising panels and printed signage
• Exhibition stalls, event backdrops and standees
• Interior signage and name boards
• Furniture, wall cladding and bathroom or kitchen partitions
• DIY projects, school models and craft work

Keep in mind: Sunboard is opaque and can dent under sharp impact. It is a board for printing, building and display, not a glass replacement.

Quick Comparison: Acrylic vs PS vs Sunboard

Acrylic wins on clarity and life, PS on price, and sunboard on printability and weight.

How to Choose the Right Thickness

Thickness matters as much as the material. These are general rules of thumb:

• 3 mm to 5 mm: displays, small signs and shelf dividers
• 5 mm to 8 mm: signage and larger panels
• 10 mm and above: structural or load-bearing needs
• 15 mm and above: maximum durability

For sunboard, 3 mm to 5 mm suits printed signs and standees, while 8 mm to 15 mm works better for furniture, partitions and cladding. PS sheets stay in the thin range, so they work best as lightweight covers, trays and inserts rather than structural parts.

Which Sheet Should You Pick?

• Premium, long-lasting finish for signage or retail: choose acrylic.
• Packaging, mirrors, LED light panels or crafts on a tight budget: choose PS.
• Light, printable, water-resistant board for ads, stalls or furniture: choose sunboard.

Many projects combine two materials, for example a sunboard backing with an acrylic front panel, to balance cost and finish.

Handling and Cutting Tips

1. Keep the protective film on until fabrication and installation are done.
2. Use the right tools: fine-tooth blades or routers for acrylic, a sharp knife or scoring tool for thin PS and sunboard.
3. Cut at a steady speed to avoid melting or chipping edges.
4. Leave room for expansion when mounting outdoors, since plastic sheets expand and contract with heat.
5. Clean with a soft cloth and mild soap and water, and avoid harsh solvents.

Why Buy Sheets from Maestroglas?

Backed by the legacy of Mahaveer Impex, Maestroglas supplies acrylic, PS and PVC foam board sheets to businesses across Bangalore and Karnataka.

• Wide range: cast acrylic in clear, colour, mirror, translucent and fluorescent options, PS sheets, and PVC foam boards in multiple thicknesses
• Custom solutions: cutting, edge polishing and engraving to your size and finish
• Free samples to check quality before you order
• Competitive pricing, with extra discounts on bulk orders
• Fast delivery: same-day for in-stock items within Bangalore, and 2 to 5 business days for custom orders
• Expert guidance on material, thickness and application at no charge

Frequently Asked Questions

What is the difference between acrylic and glass? Acrylic is lighter, more impact resistant and usually cheaper than glass, which suits signage and displays. Glass is more scratch resistant but heavier and breakable.

Is sunboard the same as PVC foam board? Yes. Sunboard is the popular Indian trade name for PVC foam board.

Can I use PS sheets outdoors? PS is best for indoor and short-term use. For long-term outdoor applications, acrylic is the safer choice.

Do you provide custom cutting and engraving? Yes. Maestroglas offers custom cutting, edge polishing, engraving and lamination services.

Are bulk discounts available? Yes. Share your requirement with the team for a free quote.

Get a Free Quote or Sample

Talk to the Maestroglas team for material advice, free samples and a quick quote.

• Phone / WhatsApp: +91 9741074705
• Email: info@maestroglas.com
• Address: No. 3 (Old 15/4), 2nd Main, Srirampura, Bangalore, Karnataka 560021
• Website: maestroglas.com

Explore the range: Cast Acrylic Sheets, Polystyrene (PS) Sheets and MaestroEco PVC Foam Boards.