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Coroplast Signs

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Koroplast is a durable, waterproof, corrugated plastic material for signage that resembles “plastic card” in appearance. The hollow corrugated design makes this sign material extremely light, easy to handle and easy to use.

Due to its lightweight characteristics, Koroplast has become a popular alternative to rigid signs made of acrylic and PVC plastic. Signs made of corrugated plastic are also usually preferable to poster boards and foam core mounting plates. The foam core is not waterproof, and the surface is much more sensitive to damage than corrugated plastic.

Advantages of signs made of Coroplast

They have a slightly ribbed surface that looks like “plastic card”.
They are ideal for short-term outdoor use (good for 1-day event signs and serving up to 2 years).
They will last for decades indoors.
They are completely waterproof.
The standard thickness of 3/16″ (4 mm) is similar to that of hard cardboard.
Coroplast is easily available in high stiffness, 1/2″ thick.
They are highly resistant to extreme temperatures in cold and hot weather.
Signals made of Koroplast plastic can be one-sided or bidirectional.
They can be easily displayed and assembled.
Koroplast is a popular alternative to the foam core mounting plate.

How long does Coroplast last?

Corrugated plastic plates are not as flexible as vinyl flag and banner material, and not as rigid as solid plastic signs. Although custom-made corrugated plastic plates are usually used outdoors, strong winds can damage the corrugated plate material. Corrugated plastic plates are designed for both indoor and outdoor short-term plates. Coroplast signs used outdoors last for up to 2 years, while coroplast signs used indoors can last for +30 years.

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  1. garrettmc18
    United States
    Verified Buyer

    Great product, easy communication with the company and fast delivery!

  2. Chris7692
    United States
    Verified Buyer

    Ordered thank you products for graduation and they were great!!

  3. Leetskillz
    United States
    Verified Buyer

    The waterproof labels ls I purchased for my product line looks perfect and professional

  4. plgxdark
    United States
    Verified Buyer

    I proofed both PDFS, but when printed, the inside was printed upside down. So when you open the front of the card, you have to turn it around to look at it. Very disappointed.

  5. Tails48685
    United States
    Verified Buyer

    We’re glad to see that our customer care team was able to fully resolve this order’s issue. If you have any additional questions and/or concerns, please do not hesitate to contact us. -Customer Care

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