Revive and Renew: How to Repair Your Coroplast Sign – Denver Print Company

Revive and Renew: How to Repair Your Coroplast Sign


Are you tired of looking at your worn-out Coroplast sign that has seen better days? Don’t throw it away just yet! With a little effort and some handy tools, you can revive and renew your sign, making it look as good as new. In this article, we will guide you through the steps to repair your Coroplast sign so that it stands out once again along with your other marketing campaign prints and signs.

Outdoor signage like parking signs or roadside signs suffer the most damage. In cases like these, firstly, you need to assess the damage on your sign. Is it just a few scratches or is it severely damaged? Depending on the extent of the damage, you may need different materials for repairing. Once you have assessed the damage, you can move on to cleaning and preparing the sign for repair. This step is crucial since any dirt or debris left behind can affect how well the adhesive or filler sticks to the surface of your Coroplast sign. So grab some soap and water and let’s get started!

Assess the Damage

Now it’s time for you to take a close look at your Coroplast sign and see just how much damage it has sustained. This step is crucial because it will determine which repair techniques are necessary, what materials will be compatible with the type of damage your sign has encountered, or whether your Coroplast sign’s life cycle has come to an end. For example, if your Coroplast yard sign has suffered from a tear or puncture, using adhesive tape may not be enough to fully restore its original strength.

Assessing the damage also involves identifying any areas that have become warped or bent out of shape. In this case, heat may be required to reshape the material back into its original form. However, caution must be taken when using heat as excessive exposure can cause the Coroplast to melt or deform further.

Once you’ve identified all the damages on your Coroplast sign, it’s important to note down each one so that you can prioritize which repairs need to be addressed first. Next up is cleaning and preparing the sign for repair without causing any further damage.

Clean and Prepare the Sign

First, grab a damp cloth and wipe down the surface of your weathered Coroplast sign to remove any dirt or grime that may have accumulated over time. Use gentle cleaning techniques to prevent damaging the surface of the sign. Avoid using abrasive materials or harsh chemicals that can cause discoloration or scratches.

Once you have cleaned the surface of your Coroplast sign, prepare it for repair by removing any remaining debris or loose particles. Use a dry cloth to wipe away any excess moisture and ensure that the surface is completely dry before proceeding with repairs. This step is critical as it ensures proper adhesion and bonding between the filler material and Coroplast.

Now that you have thoroughly cleaned and prepared your Coroplast sign, it’s time to apply adhesive or filler to restore its structural integrity. Use a suitable filler material recommended for plastic surfaces and follow manufacturer instructions for optimal results. Apply a thin layer of filler on damaged areas, let it dry completely, then sand it down until smooth before painting over it with an appropriate paint color. With this done, you are ready to move onto the subsequent section about applying adhesive or filler without causing damage to your Coroplast sign.

Apply Adhesive or Filler

Now it’s time to apply adhesive or filler to your Coroplast sign. First, determine the type of damage and choose an appropriate product for repair. Apply the adhesive or filler in a thin layer, making sure to cover the damaged area completely. Allow it to dry completely before moving on to the next step. Remember, choosing the right product and allowing sufficient drying time are key for a successful repair!

Choose the Appropriate Adhesive or Filler for the Type of Damage

When choosing an adhesive or filler to repair your Coroplast sign, you must take into consideration the type of damage. There are a variety of excellent options for adhesives available for Coroplast signs including cyanoacrylate (super glue), epoxy, hot glue, and silicone adhesives. Each option is better suited for different types of damages such as cracks, holes, or tears.

Before selecting an adhesive product, it’s important to evaluate the extent of the damage and determine which option will provide the best results. For instance, if you have a lawn sign and it has a small crack, super glue may be sufficient to repair it. However, if there are larger tears or holes in the sign, an epoxy or silicone adhesive may be necessary. Once you’ve chosen the appropriate product for your specific damage needs, apply in a thin layer and allow it to dry completely before moving on to the next step.

Apply in a Thin Layer and Allow to Dry Completely

To get the best results from your adhesive, make sure to apply it thinly and give it enough time to dry completely. Applying a thick layer of adhesive or filler may seem like a good idea for more significant damage, but it can actually prolong the drying process and result in an uneven finish. Instead, use a small amount of adhesive and spread it out evenly over the damaged area using a putty knife or spatula.

Tips for Drying Quickly include keeping the repaired sign in a warm, dry location with good air circulation. Avoid exposing the sign to direct sunlight or extreme temperatures as this can cause cracking or warping. Importance of Proper Drying Time cannot be overstated as rushing through this step can compromise the repair and potentially damage your sign further. Once you’ve allowed sufficient time for drying, you can move on to sanding and painting as needed.

Sand and Paint

You’ll want to grab some sandpaper and start smoothing out any rough spots on your Coroplast sign, then give it a fresh coat of paint to bring it back to life. Refinish techniques are an essential part of DIY repairs, and they’re especially useful for salvaging old signs that have seen better days. The first step is to sand the surface of your sign with a fine-grit sandpaper until it’s smooth and even.

Once you’ve sanded down any imperfections, it’s time to apply a new coat of paint. You can use spray paint or brush-on paint depending on what you have available. Choose a color that will stand out against the background where your sign will be displayed. Make sure to apply the paint in thin layers and allow each layer to dry completely before adding another one.

Now that your Coroplast sign has been sanded and painted, it’s time to protect and maintain its new finish. One way to do this is by applying a clear coat over the top of the newly painted surface. This will help prevent scratches and other damage from occurring while also providing extra protection against fading due to exposure from sunlight or harsh weather conditions.

Protect and Maintain

Keep your new Coroplast sign looking great for years to come by taking preventive measures and protecting it with a clear coat. This will shield its finish from the sun, wind, and rain. A clear coat is an essential surface protection that can help extend the life of your sign.

Before applying the clear coat, make sure that the surface of your Coroplast sign is clean and dry. Use a soft cloth or sponge to wipe away any dirt or debris that may have accumulated on the surface. Once you’ve cleaned it thoroughly, let it dry completely before applying the clear coat.

To apply the clear coat, use a spray can or brush-on formula specifically designed for Coroplast signs. Follow the manufacturer’s instructions carefully to ensure proper application and coverage. Applying a clear coat not only protects your sign but also gives it a glossy finish that makes it stand out even more. By taking these simple steps, you can keep your Coroplast sign looking like new for years to come!


Congratulations, you have successfully repaired your Coroplast sign! By following the steps outlined in this article, you were able to assess the damage, clean and prepare the sign, apply adhesive or filler, sand and paint, and protect and maintain your sign.

Now that your sign is looking brand new again, it’s important to remember to regularly maintain it to ensure it stays in good condition. This includes cleaning it regularly with a mild soap and water solution and avoiding exposing it to extreme weather conditions. With proper care, your Coroplast sign can continue to effectively advertise for years to come. Great job!