Why Choose Purepack For Your Plastic Corrugated Signs Needs?
- Superior Print Quality: perfect for digital UV printing
- Good resistance to UV rays, severe weather, static loads, fire
- High turnover, maximizing savings in space and freight
- ISO9001 & SGS Certified: strictly quality control for of sign boards
- Designs, colors, thicknesses, structures, and printing can be customized
What Are Plastic Corrugated Signs?
Corrugated plastic signs are made from polypropylene corrugated sheets, you can understand it as signs printed on corrugated plastic, are also called coroplast signs, correx signs, corflute signs, fluted plastic signs, the material are lightweight, durable, reusable, and economical, and available in a wide range of colors and customized options, making them especially effective for the advertising and display industry. Its ability to be printed on with vibrant, long-lasting colors makes it an excellent choice for eye-catching advertising panels, signs, and displays.
Our common plastic corrugated signs include: plastic corrugated yard signs/lawn signs, corrugated plastic protest signs/campaign signs/political signs, corrugated plastic real estate signs/arrow signs/advertising signs/wet floor signs/no parking signs. We can offer blank plastic corrugated signs, and can also printing as your need. Our common size: 4×4, 4×8, 18×24, 24×36 or other sizes can be customized.
Any sizes and patterns can be customized according to your requirements.
Types Of Plastic Corrugated Signs
We have various types of cheap corrugated plastic signs, tell us what types you want and then we will quote you the most competitive price and arrange a free sample for you within 24 hours!
With good surface flatness, suitable for screen printing, UV flatbed printing, and other processes, it is a universal advertising production material. The common types: corrugated plastic letter yard signs, advertising signs, open house signs, etc.
Blank corrugated plastic signs, often called “coroplast blanks,” are the essential raw material for the sign and display industry. Made from lightweight, twin-wall polypropylene sheets, they provide the ideal balance of rigidity for handling, flatness for printing, and durability for outdoor use.
When your message needs to be seen from a distance or withstand a challenging environment, standard corrugated plastic signs are not enough. Large corrugated plastic signs are the industrial-grade solution for you.

We will pre cutting according to the size required by customers which is convenient for advertisers to directly print and save processing time. We can custom corrugated plastic protest signs/political signs/, real estate signs, arrow signs, wet floor signs, no parking signs, etc.
Key Features of Our Plastic Corrugated Signs
Waterproof, lightweight, recyclable, non-toxic, durable, easy to print, cost-effective, reusable, eco-friendly, etc.

Corona-treated surface ensures vibrant, smudge-free prints.

Easy to handle, install, and transport, yet stands firm.

100% waterproof, resists moisture, chemicals, and corrosion.

It can be easily cut, folded, drilled, or welded for creative shapes.

Durable and reusable, offering a high ROI for advertising budgets.

Recyclable materials available upon request.

Good resistance to UV rays, severe weather, static loads, and fire.

Corrosion resistance, weather resistance, and heat tolerance are ideal for complex environments.
We Are The Source Factory with Four Production Bases
As a source supplier of corrugated plastic, Our company currently has four production bases in Vietnam, Cambodia, Thailand, and Malaysia, covering a total area of approximately 50000 square meters.
The production value exceeds 300 million yuan per year. We have 16 advanced automatic PP hollow board extrusion molding production lines adopting unique screw designs, adjustable flow blocking blocks, and special temperature control systems, which can fully ensure stable plasticizing performance and extrusion efficiency.


More Than 20 Domestic and Foreign Certifications
Purepack ensures the performance and low-carbon environmental protection of its products through strict quality control, and has gained widespread recognition from more and more customers at home and abroad.
Our company has successively passed more than 20 domestic and foreign certifications, including ISO9001: 2015 international quality system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system certification, SGS food grade certification, FDA standard certification, and TUV factory entity certification.
Why You Choose Purepack?


Since 2013, we‘ve specialized in corrugated plastic sign boards &yard signs.
With 260+ employees and 16 automatic production lines, nowadays our products are exported to 120 countries such as Europe, the United States, Canada, Mexico, the Middle East, Australia, and Africa.
Purepack factory has given the price of plastic corrugated sign board a great advantage by integrating advanced production technology with lower labor cost, so as to maximize customer benefits. As our customers, what you can get is not only products and processing, but more importantly, service and commitment with 100% engagement.
Where Are Our Corrugated Plastic Signs Used?

Plastic corrugated yard signs are durable, weather-resistant signs that last through seasons.

Quick-turnaround, mass quantities corrugated plastic campaign signs for election cycles.

Corrugated plastic yard sale signs can be used for POP displays, window signs, and sale banners.

Corrugated plastic real estate signs are safety, directional, and project information boards.

Corrugated plastic display boards are used for backdrops, directional signs, and informational panels.
- Technical Data
- Customer Gallery
- Quality Certification
- Factory Gallery
| Product Name | Plastic corrugated signs/ yard signs |
| Standard sizes | 12×18 | 12×24 | 18×24 | 24×24 | 24×36 | 24×48 | 36×48 | 48×96(1220mm×2440mm) or customized |
| Advantages | Waterproof, lightweight, recyclable, non-toxic, durable, easy to print, cost-effective, reusable, eco-friendly, etc. |
| Packing | Film packing, or according to the customer’s requirements |
| Grade | Common, anti-static, ESD, fire-resistant, UV stabilized, conductive sheets, corona- treated, etc. |
| Color | White, black, grey, blue, green, yellow, red, or customized |
| Thickness | 2mm-12mm, or customized |
| Certificate | ISO9001, ISO14001, FDA standard certification, TUV factory entity certification |
| MOQ | 1000 pieces |
Testimonials
We perform mandatory double-sided corona treatment, with dyne value tested to exceed 50. We can provide test reports.
Absolutely. We have 16 precision die-cut machines and offer custom cutting, perforation, and shape cutting services.
Sheets are packed in PE bags with corner protectors and palletized for sea freight to prevent bending or corner damage.
If it is used outdoors: Coroplast (hollow plastic board) is certainly better than foam board. The foam board is afraid of water and tide. It will become soft and rotten after a rain. The PP hollow board is waterproof, moisture-proof, and sun resistant. It can withstand outdoor wind and rain for several months without any problems. If you need to reuse: The hollow board can be wiped clean and stored away, and can be used again next time. The foam board is basically disposable, but it will break when removed.
If it is UV-resistant corrugated plastic signs, it can be used outdoors normally for two to three years. The color will not fade, and the board will not become brittle or crack. If the board you buy does not have UV resistant treatment, it will start to yellow after six months of sun exposure and may become brittle after about a year. In addition, boards with a thickness of over 4mm are more durable and have stronger wind resistance than those with a thickness of 2-3mm.
Of course. Many real estate agents’ signs and political election signs have different or identical content printed on both sides, so that they can be seen from both sides. We will help you choose a board with surface corona treatment, so that the adhesion and color effect of printing on both sides are equally good.
If you want to make outdoor signs that are durable, waterproof, and reusable, and used for outdoor billboards, real estate agency signs, election signs, construction site warning signs, and long-term displays→ select the plastic corrugated signs.
If you do indoor short-term exhibition and pursue the best printing effect, used for indoor exhibition background board, in store promotional signs, short-term activities, sample display→ choose foam board signs.
Know More About Plastic Corrugated Signs
Our corrugated plastic sign is made of a plastic corrugated sheet, which has a hollow structure made through extrusion technology, being lightweight, waterproof, and recyclable. We often see it in our daily lives. It is widely used in industrial packaging, advertising display, logistics turnover, and other fields. In recent years, the number of corrugated plastic signboards has increased rapidly.
The corrugated plastic sheets for signs have the advantages of longer service life and lower overall cost in humid environments or durable use scenarios, which can directly replace traditional cardboard.
How Can PP Hollow Sign Boars Structures Achieve Performance Breakthroughs?
As the main raw material of PP hollow board, polypropylene is extruded into a plate-like structure with regular hollow cavities through the extrusion molding process. The design of the hollow layer can reduce material density (weighing only 1/3 of the same thickness of cardboard). Customized thicknesses of 2-12mm and widths up to 2.5 meters are offered to meet your large-sized needs. We also offer custom colors and printing logos through surface treatment processes, which are perfectly suitable for your brand display scenarios.
How to Choose the Suitable Corrugated Plastic Signs?
Choosing plastic corrugated signs is actually not complicated, but many people ask ‘which is the best’ at first, and there is no standard answer. It depends on where your project is being used, how long it will last, and what effect you want to achieve. Here are a few practical perspectives to help you sort it out.
1. First, let’s look at the purpose: indoor or outdoor?
This is the most fundamental judgment.
Outdoor use (outdoor billboards, property signs, political election signs, construction site warning signs): UV resistant corrugated plastic boards must be selected. The UV stabilizer we added can keep the board from fading or becoming brittle after being exposed to the sun for two to three years. If you buy the one without UV treatment, it will turn yellow and crack after six months.
Indoor use (exhibition display boards, POP displays, background boards): The requirements for weather resistance are not as high, but surface smoothness and printing effect are more important. Choose a PP corrugated sheet with corona treated surface for better printing adhesion and brighter colors.
2. Look at the size and thickness again: how long to use determines how thick to use
Many people think that thicker is better, but it’s not.
Recommended thickness for table application scenarios: Short term promotional signs (used for 1-3 months) with a thickness of 2mm to 3mm are sufficient for low cost and can be easily disposed of after use. Real estate agency signs and election signs (used for 3-6 months) with a thickness of 3mm to 4mm can withstand wind and rain without easily deforming. Long term outdoor advertising and construction site fences (used for more than six months) with a strength of 4mm to 5mm, strong wind resistance, and are not easily blown off or damaged. The larger the board of a large-sized sign (over 1.2 meters wide), the heavier its own weight, and if it is too thin, it will collapse downwards.
3. Then look at the printing method: How do you want to print?
PP hollow boards have good printing adaptability, but different printing methods have different requirements for the surface of the board.
Screen Printing: This is the most commonly used method. Just choose a board with a flat surface and uniform thickness.
UV Flatbed Printing: Currently the most popular printing method, with bright colors and scratch resistance. Be sure to choose a sheet that has undergone Corona Treatment, otherwise the ink adhesion will be poor and it will peel off easily.
Digital Printing: Suitable for small batch, multi pattern orders.
Vinyl Application: This is the simplest and does not require high requirements for the surface of the board.
Conclusion: If you want to do high-quality color printing, remember to tell us’ boards that need to be corona treated ‘.
4. Don’t ignore the installation method
Choosing a good board, you also need to figure out how to stand it up.
Plug in (H-Stake/Wire Stake): The most commonly used. We can reserve a hole at the bottom of the board, which can be directly inserted into the soil with iron tags or wooden stakes for convenience and stability.
Zip Tie/Cable Tie: Suitable for temporary fixation on fences and scaffolding.
Double Sided Tape: Suitable for displaying on glass or walls.
Before starting, think carefully about the installation method so that we can reserve the holes for you during production, saving you from having to drill holes again when you arrive on site.
5. Special requirements: Should it be anti-static and flame-retardant?
Anti static: If used in electronic factories, laboratories, or clean rooms, it is necessary to choose anti-static corrugated plastic sheets.
Flame retardant: If it is an indoor exhibition, shopping mall, theater or other places that require fire protection, materials with flame retardant rating are required.
Whether you need bulk wholesaler, manufacturer, or need OEM/ODM service, we can neet the special requirements you need, contat us at your fre time to get the factory price quote!

























