Cast Acrylic (PMMA) - Clear Acrylic Sheet

Crystal-clear cast acrylic sheets for laser cutting, engraving, signage, and DIY projects – perfect for makers, builders, DIYers, schools, and businesses!

Transform your creative vision with our premium Cast Acrylic (PMMA) sheets, the top choice for laser cutting, engraving, CNC routing, signage, and craft projects. Known as Plexiglas® (Arkema), Lucite® (DuPont), or Perspex®, these transparent, glass-like sheets offer unmatched clarity, strength, and versatility. With a 100% light transmission and a glossy finish, they’re ideal for professional displays, crafts, and durable signs.

Available in multiple thicknesses (1/16" to 1/2") and over ten stock sizes, including Glowforge-friendly 12" x 20". With $12 flat-rate shipping per 50lb box, it’s the cost-effective choice for makers, schools, businesses, and DIYers. Order now to craft with precision and quality!

Why Buy from MakerStock?

• Premium Quality: Cast acrylic sheets (PMMA) with superior clarity, 100% light transmission, and high impact resistance, outperforming glass for laser cutting and engraving.

• Large Stock Selection: Available in multiple thicknesses and sizes: 1/16", 3/32", 1/8", 3/16", 1/4" and 1/2" and stock sizes from 8" x 12" to 24" x 48".

• Custom Processing: Order cut-to-size panels online through our custom listings or email support@makerstock.com (Typical 2-4 business day lead time).

• Affordable and Fast Shipping: $12 flat-rate shipping per 50lb box across the continental US from our two warehouses in PA and UT.

• Knowledgeable and Reliable Customer Support: Email support@makerstock.com, call, or LiveChat for assistance with material selection or questions.

• No Minimum Order Requirements: Whether you need one item or a hundred, for yourself, a business, or a school, we're your one-stop shop.
  

• Maker-Ready: Protective paper or film masking on both sides ensures scratch-free surfaces during fabrication (remove after cutting).

Perfect For:

• Laser Cutting & Engraving: Cast acrylic’s optical clarity and uniform composition ensure clean, flame-polished edges and frosted, high-contrast engravings with CO2 lasers, requiring minimal post-processing. Cuts cleanly with CO2 lasers up to 1/2" thick, (check your laser manual for settings).

• CNC Routing: Its impact resistance and consistent thickness allow for precise machining without cracking, ideal for complex shapes and prototypes.

• Signage & Displays: The 100% light transmission and glossy finish provide a glass-like aesthetic, enhancing visibility and durability for professional applications.

• Furniture & Lighting: Acrylic’s lightweight nature and thermoformability enable seamless shaping for modern designs and effective light diffusion.

• Protective Barriers: The high impact resistance and clarity make it ideal for durable, transparent safety solutions. Construct sneeze guards, retail shields, or safety panels for offices and public spaces.

Project Inspiration:

• Makers: Laser-cut acrylic keychains, engraved ornaments, or CNC-milled wall art with stunning clarity.

• Schools: Build architectural models, art installations, classroom signage, or educational prototypes.

• Businesses: Create custom acrylic displays, retail signage, sculptures or award plaques for professional branding.

• DIYers: Craft acrylic picture frames, replace lighting fixture covers, or upgrade cabinet door inserts with acrylic.

• Hobbyists: Design model train dioramas, RC car bodies, or aquariums with precision and durability.

Explore Related Products:

• Colored Acrylic Sheets: Add vibrant hues with Transparent Colored PMMA sheets for eye-catching laser-cut crafts or signage.

• Recycled Acrylic Sheets: Choose sustainability with our Recycled Clear Cast Acrylic, made from 99% recycled content for eco-conscious makers without compromising quality.

• Frosted Acrylic Sheets: Perfect for diffused lighting or privacy panels our Frosted Clear Acrylic features a matte, one-side finish.

Specifications:

• Material: 100% polymethylmethacrylate (PMMA), cast acrylic for superior clarity and engraving performance.

• Thickness Options:

  • 1/16" (0.040–0.075")

  • 3/32" (0.077–0.111")

  • 1/8" (0.093–0.133")

  • 3/16" (0.154–0.204")

  • 1/4" (0.180–0.240")

  • 1/2" (0.435–0.525")

• Density: 1180 kg/m³ (0.043 lb/in³).

• Light Transmission: 100% (Color Code: 000, clear).

• Finish: Glossy, with protective paper or film masking on both sides (remove post-fabrication).

• Tolerances: Cut tolerance of +/ -0.188" for all panel dimensions (in inches).

• Durability: Lightweight (1180 kg/m³ or 0.043 lb/in³), impact-resistant, scratch-resistant, and ideal for thermoforming, drilling, or gluing.
• Custom Sizes: Order via custom listings or email support@makerstock.com.

Pro Tip:

For optimal laser cutting, secure acrylic sheets with a jig, magnets, or tape to prevent movement. Use 30W CO2 lasers for 3mm acrylic at moderate speeds (e.g., 15mm/s) for clean, flame-polished edges. For engraving, use high speed and low power to achieve a frosted, matte finish without distortion. Store in a dry, temperature-controlled environment to avoid warping. Each laser is a bit different, so running a few tests on scrap pieces will help you dial in the best settings.

FAQs:

• Is cast acrylic good for laser cutting? Yes, cast acrylic is ideal for CO2 laser cutting, producing clean, glossy edges with minimal power (e.g., 30W for 3mm).

• Can I cut clear acrylic with a diode laser? Diode lasers (e.g., 5W–20W) can engrave clear cast acrylic with a frosted finish but struggle to cut it effectively. Clear acrylic’s transparency reduces laser absorption, requiring higher power (10W–20W) and multiple passes for thin sheets (1/16"–1/8"). For cutting, CO2 lasers (30W+) are recommended for cleaner, faster results.  

• What thickness is best for signage or furniture? Use 1/8" or 3/16" for lightweight signs; 1/4" or 1/2" for sturdy furniture or displays.

• Can I paint or engrave acrylic? Yes, cast acrylic engraves beautifully with a frosted finish; some types accept paint or UV printing (contact us for details).

• How do I clean acrylic? Gently remove protective film and wipe with a soft cloth, mild soap, and water. Avoid harsh chemicals to prevent scratching.

• What’s the difference between cast and extruded acrylic? Cast acrylic is poured and cured in molds, offering superior optical clarity, a frosted engraving finish, and better chemical resistance, ideal for laser engraving and high-quality signage. Extruded acrylic is rolled into sheets, providing smoother, flame-polished edges when laser-cut but lower engraving contrast (clearer engravings) and slightly less clarity. Cast is preferred for intricate designs and durability, while extruded is cost-effective for simpler cuts.