Ten times stronger than general purpose acrylic, sign grade acrylic sheet is used for channel letters, flat faced signs, and pan faced signs.

Sign Grade Acrylic Sheet
Durable and impact-resistant, sign grade acrylic sheet is excellent for long-lasting, weatherproof signage solutions.
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Fabrication Support
Cut-to-Size, Routing
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Local
Inventory Stocking
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National
Inventory Access
Product Overview
Widely used for:
Performance Characteristics:
Typical Properties of Sign Grade Acrylic Sheet
Common Properties
- Common Brand Names ACRYLITE®, OPTIX®, CHEMCAST®
- Typical Thickness Size 0.060, 0.080, 0.093, 0.125, 0.177, 0.220, 0.236 in
- Typical Lengths 96, 120, 144 in
- Typical Widths 48, 51, 60, 72 in
- Friendly Names PMMA, Plexiglass, Sign Plastic
- Common Profiles Sheet
Physical Properties
- Density 0.9g/cm³
- Water Absorption 0.1%
- Moisture Absorption at Equilibrium 0.3%
- Linear Mold Shrinkage 0.005mm/mm
- Melt Flow 20g/10 min
Electrical Properties
- Dielectric Strength 740V/mil
- Dielectric Constant 2.55
- Dissipation Factor 0.006
- Volume Resistivity 1 x 10^13ohm·cm
- Surface Resistivity 1 x 10^15ohm/sq
- Arc Resistance 118Seconds
- Comparative Tracking Index (CTI) 600Volts
Mechanical Properties
- Hardness, Rockwell R 102R Scale
- Tensile Strength, Ultimate 77MPa
- Tensile Strength, Yield 69MPa
- Elongation at Break 4%
- Elongation at Yield 4%
- Modulus of Elasticity 3170MPa
- Flexural Yield Strength 120MPa
- Flexural Modulus 3170MPa
- Compressive Yield Strength 110MPa
- Bearing Yield Strength 69MPa
- Shear Strength 48MPa
- Izod Impact, Notched 16J/m
- Izod Impact, Unnotched 320J/m
- Gardner Impact 150J
- Falling Dart Impact 200J
- Instrumented Impact Total Energy 0.3J
Thermal Properties
- CTE, linear 70µm/m°C
- CTE, linear, Transverse to Flow 70µm/m°C
- Deflection Temperature at 0.46 MPa (66 psi) 98°C
- Deflection Temperature at 1.8 MPa (264 psi) 93°C
- Vicat Softening Point 105°C
- Flammability, UL94 HBRating
- Max Continuous Operating Temperature 180°F
- Minimum Operating Temperature - 40°F
- Thermal Conductivity 0.19W/m·K
Regulations
- UL-94 Flame Class
- ASTM/Mil-Spec
- D635 Self Extinguishing
- RoHS Compliant
- REACH Compliant
Literature and Data Sheets
- All Suppliers
- POLYVANTIS
- Plaskolite
- Plastiglas De Mexico
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ACRYLITE® Digital Print Pop Touch Technical Information POLYVANTISView
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ACRYLITE® Digital Print Technical & Fabrication Information POLYVANTISView
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ACRYLITE® LED Light Guiding Edge Lit Technical Information POLYVANTISView
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ACRYLITE® LED Sign Grade Technical Information POLYVANTISView
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ACRYLITE® Premium (FF) Technical Information POLYVANTISView
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ACRYLITE® Signage Solutions POLYVANTISView
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Plaskolite Duraplex® Impact Modified Acrylic PlaskoliteView
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Plaskolite OPTIX® Acrylic PlaskoliteView
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Plaskolite OPTIX® DA - Digital Acrylic PlaskoliteView
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Plaskolite OPTIX® L Designer Colors Acrylic PlaskoliteView
Sign Grade Acrylic Sheet from Piedmont Plastics
Sign grade acrylic is a thermoplastic material designed especially for the signage industry. As a type of acrylic plastic sheet, it is both strong and lightweight, making it easy to handle and install. Unlike standard acrylic sheets, sign grade acrylic offers greater impact resistance, which means it can better withstand bumps, drops, and harsh weather without breaking. This makes it a great choice for both indoor and outdoor signs.
Sign grade acrylic plastic sheet is commonly used for illuminated signs, channel letters, display panels, menu boards, and point-of-purchase (POP) displays. Its excellent clarity and smooth surface help graphics and lighting shine brightly and clearly. Because it holds up well over time, sign grade acrylic helps reduce the need for repairs or replacements, saving businesses time and money.
Another benefit of sign grade acrylic is its versatility. Available in a variety of colors, thicknesses, and finishes, it can also be easily cut, shaped, and fabricated to meet your exact design needs. Whether you're creating a bold storefront sign or a sleek indoor display, sign grade acrylic sheet is a smart and reliable choice.
Looking for a trusted plastic sheet distributor? Piedmont Plastics is a leading performance plastic supplier offering a wide selection of acrylic plastic sheet products for signage and beyond. Contact us today to find the right acrylic sheet solution for your next project!


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Key Features of Sign Grade Acrylic
Sign grade acrylic offers superior impact resistance along with the many other advantages of traditional acrylic sheet, making it a highly durable and reliable choice for the signage industry. Often referred to as impact-modified acrylic, this material delivers:
Enhanced Strength: Sign grade acrylic is up to ten times stronger than standard acrylic and 30 times stronger than double-strength window glass, making it ideal for demanding signage applications.
Cost-Effective Performance: With greater durability than general-purpose acrylic, sign grade acrylic helps reduce maintenance and replacement costs. It also offers a more economical alternative to polycarbonate while still delivering excellent performance.
Weather and UV Resistance: This material is well-suited for outdoor use, maintaining clarity and resisting yellowing even after prolonged sun exposure.
Easy Fabrication: Sign grade acrylic can be cut, routed, and thermoformed with minimal risk of chipping or cracking. Unlike polycarbonate, it doesn’t require drying before fabrication, streamlining the production process.
Benefits of Sign Grade Acrylic
Common Sign Grade Acrylic Applications
Sign grade acrylic is the go-to choice for sophisticated sign fabricators and designers. Thanks to its vast decorative potential, long-lasting durability, and ability to withstand different weather conditions, sign grade acrylic can be used for a variety of applications, most commonly:
Building Signage: Sign grade acrylic is commonly used for building signage due to its durability, impact resistance, and ability to withstand various weather conditions.
Channel Letters: Because of its exceptional strength, superior impact resistance, and weather resistance, sign grade acrylic ensures that channel letters can withstand outdoor conditions without yellowing.
Cabinet Lightboxes: Owing to its durability, impact resistance, and easy of fabrication, sign grade acrylic allows for seamless integration into cabinet lightbox designs.
Dimensional Signage: Sign grade acrylic is a terrific choice for dimensional signage because of its impact resistance, decorative potential, and weather resistance.
Flat and Pan-Faced Signs: Sign grade acrylic is often used for flat and pan-faced signs due to its optical clarity, customizability, and resistance to chipping or breakage.
Related Products
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Cast Acrylic
Cast acrylic from Piedmont Plastics offers exceptional strength, optical clarity, and weather resistance, making it ideal for applications such as signage, retail displays, protective barriers, and architectural glazing.
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Extruded Acrylic
Extruded acrylic is a durable, lightweight, and optically clear thermoplastic sheet, ideal for architectural glazing, display cases, exhibits, and safety partitions, offering a cost-effective alternative to glass with excellent impact resistance and weatherability.
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Continuous Cast Acrylic
A cost-effective alternative to cell cast sheet, continuous cast acrylic sheet is created by pouring polymerized acrylic onto steel platform, then continually heating and cooling it between highly polished steel plates to control curing and produce an exceptionally clear and stable final product.
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Specialty Acrylic Sheet
Acrylic is a highly versatile plastic that is easily fabricated and offers superior clarity and durability in a range of applications. This makes it an ideal choice for products requiring precision, resilience, and a high-end appearance.
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Sign Grade Polycarbonate
Piedmont Plastics is a distributor of UV resistant thermoplastic sign grade polycarbonate sheet, used for sign faces, channel letters, and other signage.
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PETG
Strong and versatile, PETG plastic sheet can be used in various applications, including signage, displays, medical implants, and beverage containers.
Sign Grade Acrylic FAQs
Sign grade acrylic provides numerous advantages for signage applications. Explore answers to some of the most commonly asked questions about this versatile material.
Sign grade acrylic is a type of impact-modified acrylic sheet specifically designed for signage applications. It offers greater strength and durability than standard acrylic, making it ideal for indoor and outdoor signs, displays, and lettering.
While both are lightweight and offer excellent clarity, sign grade acrylic is formulated to be more impact resistant than general-purpose acrylic. It also performs better in fabrication processes like routing, thermoforming, and cutting, making it more suitable for commercial signage.
Yes. Sign grade acrylic is UV-stabilized and designed to withstand outdoor conditions without yellowing or becoming brittle. It resists weathering and holds up well against sunlight, wind, and rain.
Sign grade acrylic is known for its ease of fabrication. It can be cut, drilled, routed, and thermoformed without cracking or chipping, and it doesn't require drying before thermoforming—unlike some other plastics. Piedmont Plastics also offers cut-to-size services to help meet your exact specifications.
Why Buy Sign Grade Acrylic from Piedmont Plastics?
At Piedmont Plastics, we provide more than just sign grade acrylic: we deliver complete solutions designed around your specific signage needs. Here's what sets us apart as your trusted supplier of sign grade acrylic sheets:
Extensive Inventory: We stock a wide range of sign grade acrylic sheets in multiple thicknesses, colors, and finishes to meet the unique requirements of your signage projects, whether for indoor displays or outdoor installations.
Custom Cutting and Fabrication: Using advanced CNC equipment, we offer precision cutting and fabrication services to deliver sign grade acrylic components built to your exact specifications. No matter the size or shape, we can help bring your vision to life.
Industry Knowledge: With decades of experience in the performance plastics industry, our knowledgeable team is here to help you select the best acrylic sheet solution for your application.
Convenient Nationwide Access: With multiple locations across North America, your acrylic plastic sheet needs are always within reach. We ensure fast, reliable service wherever you are.
High-Quality Materials: We’re committed to delivering acrylic plastic sheets that meet or exceed industry standards every time. You can count on us for reliable, high-performance materials that stand the test of time.
Ready to take your signage to the next level with our sign grade acrylic? Contact us today to speak with one of our sign experts. Together, we can develop solutions to improve your signage applications!
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