Cast acrylic sheets are formed by pouring liquid acrylic monomer into glass molds. The material cures slowly at a constant temperature until it solidifies into a flat, stable sheet.
This slower process gives the sheet a denser, more uniform structure — the reason behind its clarity and long-lasting strength.
What are the main features of cast acrylic sheet?
Stable structure. Holds its shape, resists cracking, performs well even in heat or sunlight.
High optical quality. Up to 92% light transmittance. Smooth surface, clear like glass.
Good machinability. Easy to cut, polish, or thermoform. Polishes to a true mirror finish.
Solid feel. Slightly heavier and more rigid than extruded sheets, often chosen for premium displays or installations.
What is the thickness range of cast acrylic sheet?
Thickness range: 1.8mm – 100mm
Where is cast acrylic sheet commonly used?
Because of its clarity and strength, cast acrylic is common in:
Display racks and showcases
Signage panels and lightboxes
High-end furniture or bathtub panels
Decorative walls and art installations
Skylights, windows, crafts
Protective covers and optical components
Extruded Acrylic Sheet
How is an extruded acrylic sheet produced?
Extruded acrylic sheet is produced in a continuous process. Acrylic pellets (PMMA) are melted and pushed through an extrusion die, then cooled and cut to size.
This gives the manufacturer precise control over thickness and makes high-volume production efficient.
What are the main features of extruded acrylic sheet?
Even thickness, consistent size. Automated extrusion keeps tolerances tight and surfaces flat.
Efficient to produce. Ideal for long runs and large quantities.
Good optical clarity and UV resistance. Clear and color-stable over time.
Easy to process. Suitable for bending, cutting, printing, or engraving.
Light and practical. Easy to handle and install, with good impact resistance.
What is the thickness range of extruded acrylic sheet?
Thickness range: 0.8mm – 12mm
Where is extruded acrylic sheet commonly used?Because of its consistency and UV resistance, extruded acrylic is often used in:
Building and interiors: windows, partitions, ceilings
Roofing and skylights: greenhouses, domes, canopies
Displays and signage: lightboxes, display racks, boards
Framing and guide signs: picture covers, nameplates, directories
So, which one should you choose?
There’s no single “better” type — it depends on your goals.
Need optical clarity, a range of thicknesses, or a more refined appearance? Go for cast acrylic.
Need thin sheets under 1.8mm, tighter thickness tolerance, or high consistency in large runs? Choose extruded acrylic.
2. Goldensign’s Manufacturing Strength
Goldensign has years of expertise producing both cast and extruded acrylic sheets.
Every batch is tested for light transmission, thickness accuracy, and surface flatness.
With our automated extrusion lines and carefully controlled casting workshops, we guarantee:
Stable, reliable supply
Uniform quality across orders
Flexible customization options
Cheap acrylic sheets often yellow or warp over time. We focus on what truly matters — the clarity you see, the smoothness you touch, and the reliability you can count on.
3. How to Choose the Right Sheet
For thermoforming or advertising displays, cast sheets work best.
For thin sheets (below 1.8mm) or when precise thickness and batch consistency matter, go with extruded.
Not sure which fits your use case? Tell us about your project — your environment, budget, and design goals. We’ll help you match the right material for the job.
4. Why Choose Goldensign
We’re not just a manufacturer. We care about how our sheets perform once they’re installed.
Goldensign works with distributors, builders, and designers in more than 120 countries.
Our approach is simple:
Integrity first
Reliable quality
Partnerships that last
Whether you need clear, colored, or custom-cut acrylic sheets, Goldensign is here to support your project — from concept to completion.
