Corrugated Plastic Sheets - Coroplast™

Brand Name: Coroplast™

Common Names: Corrugated Plastic, Fluted Polypropylene, Intepro

Material Pros: Light-weight, Cost-effective, Waterproof

Popular Applications: Signage, Moisture Barrier

Why Coroplast™ Corrugated Plastic Sheets?

Coroplast (fluted polypropylene) is a popular choice for today's screen-printing industry. It is ideal for indoor and outdoor applications while being tougher than corrugated fiberboard and lighter than extruded plastic sheet. It is waterproof, stain-resistant, and durable, and Coroplast is designed so that ink adheres better and lasts longer. It is the perfect solution for temporary event signage, outdoor yard signs for realtors, or seasonal displays.

Coroplast™ products are offered in a wide range of standard and opaque colors. As a Packaging Material, Coroplast™ is unmatched in durability, design versatility and re-usability. No product offers the benefits of Coroplast™ for constructing custom plastic containers and packaging. It is

Coroplast is also commonly used in the construction and concrete industry. Its moisture resistance, low cost, and ability to be easily cut, make it the perfect choice to be used as a moisture barrier, temporary wall and flooring protectant, or construction signage.

COROPLAST MODIFIED WITH ADDITIVES

All Coroplast™ twin-wall profile sheets can be modified with additives, which are melt-blended into the sheet to meet the specific needs of the customer. Special products that require additives include: ultraviolet protection, anti-stat, flame retardant, custom colors, corrosive inhibitors, static-dissipative, and more. If you need a specific color or have a specific application in mind, give us a call. We can help find the perfect plastic for the job.

What Are Corrugated Plastic Sheets?

Corrugated plastic sheets are a twin-wall polypropylene panel with a fluted core running between two smooth outer faces. Same structural concept as corrugated cardboard, completely different performance. It won't absorb water, won't warp in the rain, and won't lose structural integrity after a few days outdoors. The smooth face takes screen and digital print cleanly, which is why it became the default substrate for yard signs, real estate boards, and outdoor event graphics.

Weight is one of the bigger selling points. Corrugated plastic sheets are considerably lighter than extruded solid plastic sheets of the same size, which matters when you're handling, shipping, or installing large quantities. And it cuts with a utility knife or panel saw, no specialty tooling needed, which speeds up the job and reduces the need for extra equipment. 

What Are Corrugated Plastic Sheets Used For?

Signage is the obvious and most popular one. Real estate yard signs, political signs, event direction signs, and construction site signage are all common use cases. For traffic control and barricades, corrugated plastic sheets are widely used for temporary road signage and construction zone panels because it's cheap enough to be expendable and tough enough to last the job.

Construction site protection is just as common. Building and construction crews use corrugated plastic sheets as temporary floor protection, subfloor moisture barriers during concrete pours, and wall guards during renovation. It takes foot traffic, gets taped down, and comes up clean when the job's done.

Packaging and reusable containers are a growing use case. Corrugated plastic packaging holds up to repeated use in ways cardboard simply can't. Custom-scored and folded corrugated plastic sheet can be built into returnable shipping trays, parts dividers, and protective inserts that last through hundreds of cycles.

Agricultural and outdoor applications, including plant trays, nursery flats, and outdoor recreational panels, also rely on corrugated plastic sheets because it's cheap, waterproof, and easy to cut on site.

Corrugated Plastic vs. Solid Polypropylene Sheet

Corrugated plastic sheets and solid polypropylene sheets come from the same base resin but serve different purposes. Corrugated sheets are the optimal lightweight, flexible option used for signage, barriers, and protective applications. Solid polypropylene is what you'd use for tanks, structural components, and fabricated parts where rigidity and weldability matter. If you're on the fence, call or contact us, and we'll point you in the right direction.

Cut-to-Size Corrugated Plastic

Standard sheets run 48x96. Our cut-to-size service handles corrugated plastic with same-day turnaround and guaranteed tight tolerances. It cuts clean on a panel saw and scores easily with a straight edge and utility knife for site work. Call ahead on high-volume orders.