
Corrugated plastic, also known as Coroplast, is a material that is often referred to as plastic cardboard. It is made from three layers of thin, polypropylene plastic substrate, with a zig-zagged inner layer sandwiched between two flat outer layers. Corrugated plastic is widely used across various industries due to its lightweight, durable, versatile, and recyclable nature. Its applications include signage, packaging, and surface protection.
| Characteristics | Values |
|---|---|
| Name | Corrugated plastic, Corriboard, Correx, Biplex, Cartonplast, Polyflute, Coroplast, FlutePlast, IntePro, Proplex, Twinplast, Corriflute, Corflute |
| Composition | Three layers of thin, polypropylene plastic substrate |
| Layer structure | A zig-zagged layer of plastic sandwiched between two smooth layers of plastic sheeting (twin-wall plastic sheeting) |
| Weight | Lightweight |
| Cost | Cheap to produce and purchase |
| Durability | Durable, long-lasting, won't break down or tear easily |
| Weather resistance | Weather-resistant, won't get soggy in the rain, won't melt in the heat, won't become brittle or frail in the cold |
| Recyclability | Recyclable, non-biodegradable |
| Safety | Non-toxic, safe for humans and animals, resistant to strong cleaning fluids |
| Additives | Can be mixed with additives to increase resistance and durability, e.g., UV-resistance, flame retardancy |
| Mounting options | Various options for hanging, e.g., grommets for hanging from walls or hooks |
| Printing options | Can be printed on both sides |
| Uses | Temporary outdoor signage, lawn signs, construction site signs, real estate signs, containers, packaging, mail carriers, surface protection, dust containment barriers, cleanroom construction, prosthetic industry, fibre applications, injection moulding, ropes, carpets, upholstery, clothing |
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What You'll Learn
- Corrugated plastic, also known as Coroplast, is a versatile material
- Coroplast is used for signage, packaging, and construction
- Coroplast is lightweight, durable, and recyclable
- Coroplast is made from polypropylene, a non-toxic and stable plastic
- Coroplast can be customised with additives for specific needs

Corrugated plastic, also known as Coroplast, is a versatile material
One of the key advantages of Coroplast is its versatility in terms of customization. It can be easily cut, bent, stapled, and modified to suit various applications. Additionally, Coroplast can be printed on, making it ideal for signage and displays. The plastic sheeting typically comes in bright white, allowing the full colour spectrum to be printed on it. Coroplast is also available in various colours, thicknesses, and weights to meet specific requirements.
Coroplast is commonly used for indoor and outdoor signage, such as campaign signs, real estate signs, and construction site notices. Its lightweight and sturdy nature makes it a popular choice for temporary surface protection during construction or remodelling projects. Coroplast is also used in packaging and containers, providing a reusable and recyclable alternative to corrugated paper containers.
The durability of Coroplast makes it suitable for use in harsh conditions. It is weather-resistant, able to withstand heat, rain, and cold without becoming brittle or frail. Coroplast is also chemically inert, with a neutral pH, allowing it to perform well when exposed to various chemicals and solvents. This property, along with its non-toxic nature, makes it suitable for use in food-safe applications and medical prosthetics.
Corrugated plastic is known for its versatility, affordability, and ease of transportation. Its lightweight nature reduces shipping costs and facilitates handling during assembly and setup. Coroplast is also recyclable, allowing it to be reused and reformed for various household and industrial applications. However, it is important to note that Coroplast is not entirely eco-friendly as it is made from non-biodegradable polypropylene.
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Coroplast is used for signage, packaging, and construction
Coroplast is a brand name for corrugated plastic, a material that is often used in signage, packaging, and construction.
Signage
Coroplast is a popular choice for outdoor signs as it is weather-resistant. It won't get sogy in the rain, melt in the heat, or become brittle in the cold. It can also be printed on both sides, and it comes in a variety of colours, thicknesses, and weights. Coroplast is commonly used for commercial, political, and yard signs.
Packaging
Coroplast is an excellent material for reusable packaging. It can be converted into boxes, bins, totes, and dividers, and it is ideal for both indoor and outdoor applications. Coroplast is also widely used for returnable shipping solutions as it is durable, lightweight, and recyclable.
Construction
In construction and remodelling, Coroplast is used for surface protection and dust containment. It helps to maintain clean workspaces and protect floors, walls, and other surfaces from dust, debris, and accidental damage. It is also used in heat recovery ventilation systems as it can withstand high temperatures.
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Coroplast is lightweight, durable, and recyclable
Coroplast is a brand name for corrugated plastic sheets, which are commonly used for signage and packaging. It is a lightweight, durable, and recyclable material with a range of applications across industries.
Coroplast is made from polypropylene, a sturdy thermoplastic polymer with a neutral pH. This means it can withstand external temperature changes, weather conditions, and usage without significant wear and tear. Coroplast's lightweight nature makes it easy to transport and reduces shipping costs. Its durability also means it can be reused and recycled, enjoying a second life as a broom, brush, or part of a plastic funnel, for example.
The design of Coroplast sheets features three layers of polypropylene plastic substrate. The two external layers are twin-wall plastic sheets, which hold an internal layer of honeycomb-shaped plastic. This inner layer of ridges and furrows adds strength and reinforcement to the material. Coroplast is chemically inert, with oils, solvents, and water having no effect at regular temperatures. This allows it to perform well in adverse weather conditions and makes it suitable for exposure to harsh chemicals.
The versatility of Coroplast makes it ideal for both indoor and outdoor use. It is weather-resistant, so it won't get soggy in the rain, melt in the heat, or become brittle in the cold. This makes it a popular choice for temporary outdoor signage, such as campaign signs, real estate signs, or advertising for businesses. Coroplast can also be printed on both sides, providing flexibility for messaging.
In addition to signage, Coroplast is used in construction and remodelling for surface protection and dust containment. Its durability and lightweight nature make it a practical choice for protecting floors, walls, and other surfaces during building and renovation projects. Coroplast is also used by enthusiasts of small pets for DIY cages and in the remote-controlled aircraft community for model aircraft construction.
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Coroplast is made from polypropylene, a non-toxic and stable plastic
Coroplast is a brand name for corrugated plastic, a material that has been used since the 1970s. It is made from polypropylene, a non-toxic and stable plastic. Polypropylene is a high-impact plastic resin that can be recycled. It is lightweight yet tough and can be easily cut with a utility knife.
Polypropylene has a neutral pH factor, and its chemical inertness means that it is not affected by most oils, solvents, or water at regular temperatures. This makes Coroplast ideal for use in adverse weather conditions or as a product component exposed to harsh chemicals.
The twin-wall design of Coroplast sheets provides strength and reinforcement, and they can be modified with additives to meet specific needs. For example, additives can be added to boost UV-resistance or make the material flame retardant.
Coroplast is often used for signage, both indoor and outdoor, due to its durability, versatility, and ability to be printed on both sides. It is also used in packaging and for surface protection during construction or remodelling.
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Coroplast can be customised with additives for specific needs
Coroplast, a type of corrugated plastic, is often used in sign materials. Coroplast can be customised with additives for specific needs. The standard sheets can be modified with additives, which are melt-blended into the sheet to meet the specific needs of the end-user. Additives can be added to the plastic to boost its UV-resistance or to make it flame retardant. Coroplast is also available in a variety of colours, including basic colours like white or black, and more vibrant hues such as blue, red, or yellow.
Coroplast is a lightweight, tough material that can easily be cut with a utility knife. It is chemically inert, with a neutral pH factor. Oils, solvents, and water typically have no effect at regular temperatures, allowing it to perform well in adverse weather conditions. Coroplast is also recyclable and weather-resistant. It won't get soggy in the rain, melt in the heat, or become brittle in the cold. It can be used both indoors and outdoors and has a lifespan of more than 10 years when used inside.
The inner layer of Coroplast is made up of a series of ridges and furrows, which help to strengthen and reinforce it. This corrugated design gives Coroplast multiple mounting options. For example, Coroplast signs can be hung from a wall or hook using grommets, or they can be staked into the ground as yard signs. The structure of Coroplast also means that you can print a message on one or both sides of the sign.
Coroplast is a versatile material with a wide range of applications. It can be used for temporary surface protection during construction, remodelling, or repairs, as well as for dust containment barriers to maintain clean workspaces and protect sensitive areas. Its durability and lightweight nature make it ideal for signage and packaging, and it is commonly used in the signwriting industry for real estate, construction sites, and promotions.
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Frequently asked questions
Plastic cardboard is called Coroplast, which is a brand name for corrugated plastic.
Coroplast is made from three layers of thin, polypropylene plastic substrate. The inner layer is zig-zagged and sandwiched between two smooth layers of plastic sheeting, also known as twin-wall plastic sheeting.
Coroplast is used for temporary outdoor signage, such as campaign signage, real estate signs, and parking signs. It is also used for constructing containers and packaging. Coroplast is ideal for signage because it is lightweight, sturdy, weather-resistant, and can be printed on both sides.
































