Fluted Polypropylene Sheet | Piedmont Plastics

Common Properties

Common Brand Names Coroplast®, Correx®, Cartonplast®
Typical Thickness Size 0.118, 0.157, 0.197, 0.236 inches
Typical Lengths 48, 96 inches
Typical Widths 48, 96 inches
Friendly Names Corrugated Plastic, Twinwall Plastic, Fluted PP
Common Profiles Sheets, Panels
Common Colors White, Custom Colors

Physical Properties

Density 0.91 - 1.5g/cm³
Water Absorption 0.01 - 0.3%
Moisture Absorption at Equilibrium 0.1 - 0.7%
Linear Mold Shrinkage 0.2 - 2.5%
Melt Flow 1 - 40g/10 min

Electrical Properties

Dielectric Strength 680V/mil
Dielectric Constant 2.2
Dissipation Factor 0.0003
Volume Resistivity 1.0E+15Ohm-cm
Surface Resistivity 1.0E+15Ohm
Arc Resistance 120seconds
Comparative Tracking Index (CTI) 600V
Thermal Coefficient of Dielectric Constant - 200ppm/°C
Electrostatic Discharge (ESD) Sensitivity Low
Breakdown Voltage 21000V

Mechanical Properties

Hardness, Rockwell R 95
Tensile Strength, Ultimate 27MPa
Tensile Strength, Yield 22MPa
Elongation at Break 450%
Elongation at Yield 10%
Modulus of Elasticity 1550MPa
Flexural Yield Strength 30MPa
Flexural Modulus 1300MPa
Compressive Yield Strength 11MPa
Bearing Yield Strength 13MPa
Shear Strength 25MPa
Izod Impact, Notched 4.5J/m
Izod Impact, Unnotched 12J/m
Gardner Impact 11J
Falling Dart Impact 20J
Instrumented Impact Total Energy 18J

Thermal Properties

CTE, linear 100µm/m°C
CTE, linear, Transverse to Flow 150µm/m°C
Deflection Temperature at 0.46 MPa (66 psi) 100°C
Deflection Temperature at 1.8 MPa (264 psi) 80°C
Vicat Softening Point 78°C
Flammability HBUL94
Max Continuous Operating Temperature in F 120°F
Minimum Operating Temperature in F - 20°F
Thermal Conductivity 0.22W/m·K

Regulations

FDA
USDA
NSF
Canada AG
RoHS Compliant
REACH Compliant

Fluted Polypropylene Sheets at Piedmont Plastics

Fluted polypropylene, also known as corrugated polypropylene, is a lightweight, durable twin-wall plastic sheet widely used in packaging, signage, construction, and industrial applications. Made from high-impact polypropylene copolymer, this material is designed for strength, moisture resistance, and excellent chemical resistance, making it ideal for both indoor and outdoor use.

At Piedmont Plastics, we offer fluted polypropylene sheets in a variety of thicknesses, colors, and sizes to meet your exact specifications. These sheets are easy to fabricate, print, and die-cut, making them a go-to solution for screen printing, display signage, reusable containers, and protective packaging.

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Key Features of Fluted Polypropylene:

Fluted polypropylene sheets are engineered to deliver reliable performance in demanding environments. Their unique properties make them a versatile solution for both short-term and long-term applications.

Lightweight yet strong twin-wall construction: The hollow-core design provides excellent strength-to-weight ratio.
Waterproof and chemical resistant: Fluted PP resists water, oils, and most chemicals, making it ideal for environments where exposure to moisture or corrosive substances is common.
UV-resistant: UV-stabilized options help protect the material from sun damage and extend service life.
Reusable and recyclable: Fluted polypropylene supports sustainability initiatives and can be recycled at the end of its life cycle.
Easy to cut, print, and convert: The material is compatible with screen and digital printing, die-cutting, routing, and scoring.

Fluted PP Benefits

Whether for signage, packaging, or any custom project, our fluted plastic sheet offers unmatched quality and performance. Let Piedmont Plastics be your partner in innovation and success with our superior material solutions.

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Common Applications:

Fluted polypropylene is used across a wide range of industries thanks to its durability, versatility, and ease of fabrication. Below are some of the most common applications for this dependable material.

Yard signs, election signage, and point-of-purchase displays
Reusable packaging and containers
Layer pads and dividers
Construction site signage
Agricultural and industrial storage solutions

These applications highlight the adaptability of fluted polypropylene in both commercial and industrial settings. Its performance and cost-efficiency make it a smart choice for countless everyday and specialized uses.

Frequently Asked Questions About Fluted Polypropylene

At Piedmont Plastics, we know that choosing the right material can raise a few questions. That’s why we’ve compiled answers to some of the most common inquiries about fluted polypropylene sheets. Whether you're wondering about printability, durability, or recycling, this section is here to help guide your decision.

Fluted polypropylene is a durable, lightweight plastic sheet with a corrugated structure that makes it highly versatile. Produced by extruding polypropylene through a die that forms parallel ridges—or “flutes”, the material offers impressive strength and rigidity while remaining easy to handle due to its low weight.

Yes, it is completely waterproof and ideal for outdoor use.

Absolutely. Fluted PP supports screen printing, UV flatbed printing, and vinyl application.

It can be easily cut with a utility knife, die cutter, or CNC router. Piedmont Plastics can also cut your sheet to size upon request.

Yes, fluted polypropylene is 100% recyclable and environmentally friendly. Ask us about our recycling program!

Why Buy Fluted Polypropylene from Piedmont Plastics?

At Piedmont Plastics, we deliver more than just material—we provide tailored solutions designed to meet your unique project needs. Here’s why we’re the trusted source for fluted polypropylene sheets:

Extensive Inventory: We stock a wide range of fluted polypropylene sheets in various sizes, thicknesses, and colors to support applications across signage, packaging, construction, and more.
Custom Cutting and Conversion Services: Our advanced fabrication capabilities allow us to cut, score, and convert fluted polypropylene to your exact specifications, saving you time and reducing waste.
Industry Knowledge: With decades of experience, our knowledgeable team can help identify the best fluted polypropylene solution for your specific performance, environmental, or printing requirements.
Convenient Nationwide Access: With branches across North America, Piedmont Plastics offers quick turnaround and dependable delivery—wherever your business is located.
Reliable Product Quality: We partner with top manufacturers and adhere to strict quality standards to ensure every fluted pp sheet performs consistently and meets your expectations.