How Long Does It Take Gorilla Glue to Dry on Plastic?

When it comes to bonding plastics, Gorilla Glue is a popular choice due to its strong adhesive properties. It is a high-quality product that is easy to use and has proven itself time and again. This is why we recommend it as one of the best epoxies available today. The glue is easy to apply, which makes it a good option for beginners. It also dries quickly, so you can get back to work quickly after applying it.

However, if you’ve recently used Gorilla Glue on plastic, you might be wondering how long it takes to dry. In this article, we’ll explore the drying time of Gorilla Glue on plastic and provide you with all the information you need to know.

What is Gorilla Glue

Gorilla Glue is an adhesive that forms a durable and long-lasting bond between various materials, including plastics. When using Gorilla Glue on plastic surfaces, it’s important to have a clear understanding of the drying process and the time it takes to achieve a strong bond.

Does Gorilla Glue Stick to Plastic?

Yes, Gorilla Glue can stick to plastic surfaces. However, the bond strength may vary depending on the type of plastic, as the adhesive is activated by moisture1. While Gorilla Glue may work on some plastics, it is not recommended for use on polyethylene or polypropylene2, as they are low surface energy plastics that do not bond well with most adhesives, including Gorilla Glue.

How Long Does It Take Gorilla Glue to Dry on Plastic?

In general, Gorilla Glue takes around one to two hours to dry on plastic surfaces. During this initial drying time, the glue will reach a tacky state and form a bond with the plastic. However, it’s crucial to note that this is not the full curing time.

While Gorilla Glue may appear dry after one to two hours, it is important to allow it to fully cure for optimal bond strength. The full curing time for Gorilla Glue on plastic can vary depending on several factors, including environmental conditions such as temperature and humidity.

In most cases, it is recommended to wait at least 24 hours for the glue to fully cure.

Also, you should read about how long it takes Gorilla glue to dry on wood, rubber, and on metal

Factors Affecting Drying Time on Plastic

Several factors can influence the drying time of Gorilla Glue on plastic. These include:

  1. Temperature: Higher temperatures accelerate the gorilla glue drying process, while lower temperatures can slow the drying time
  2. Humidity: High humidity levels can prolong the drying time, so it’s best to work in a well-ventilated area with moderate humidity.
  3. Thickness of Glue Application: Thicker layers of Gorilla Glue may require more time to dry and cure adequately.

How to Apply Gorilla Glue to Plastic

Step 1: Gather Materials

  • Gorilla Glue
  • Plastic surface to be glued
  • Clamps or heavy objects (optional)
  • Safety gloves and goggles (optional but recommended)

Step 2: Prepare the Plastic Surface

  • Ensure that the plastic surface is clean and free from any dirt, dust, or debris. Clean it with a mild detergent or rubbing alcohol if needed.
  • Dry the surface thoroughly to remove any moisture.

Step 3: Apply the Gorilla Glue

  • Shake the Gorilla Glue bottle well before using it.
  • Apply a thin, even layer of Gorilla Glue to one of the plastic surfaces. Use a small amount, as the glue will expand when drying.
  • Avoid applying too close to the edges to prevent excess glue from seeping out.

Step 4: Join the Plastic Surfaces

  • Press the two plastic surfaces together firmly, ensuring a snug fit.
  • Wipe off any excess glue with a damp cloth or sponge before it dries, as it will be difficult to remove once dried.

Step 5: Clamping (optional)

  • If you want to ensure a stronger bond, you can use clamps or place heavy objects on top of the glued surfaces. This helps to provide even pressure for better adhesion.
  • Follow the recommended clamping time mentioned on the Gorilla Glue packaging.

Step 6: Drying Time

  • Allow the glued plastic to dry completely.
  • Typically, Gorilla Glue takes around 2 hours to dry initially.
  • However, for a full cure, it can take up to 24 hours or longer, depending on the environment.
  • Avoid putting any stress on the glued area until it is fully cured.

Step 7: Finishing Touches

  • Once the Gorilla Glue is completely dried and cured, you can remove any clamps or heavy objects.
  • Check the bond strength by applying gentle pressure and ensuring it is securely attached.
  • Clean any residue with acetone, but be cautious not to damage the plastic surface.

Tips for Ensuring Proper Drying

To ensure a successful bond and proper drying of Gorilla Glue on plastic, consider following these tips:

  1. Clean the plastic surface: Ensure that the plastic surface is clean and free from any debris or contaminants before applying the glue.
  2. Apply a thin, even layer of glue: Applying too much glue can extend the drying time and may result in a weaker bond.
  3. Optimize environmental conditions: Work in a well-ventilated area with moderate temperature and humidity levels for ideal drying conditions.
  4. Allow ample curing time: Although Gorilla Glue may appear dry within a couple of hours, it’s crucial to wait the recommended 24 hours for a full cure before subjecting the bond to stress.

Gorilla Glue FAQs

How Long Does It Take Gorilla Glue to Fully Harden?

Gorilla Glue can take up to 24 hours or more to fully harden and reach its maximum bond strength, depending on the environmental conditions such as temperature and humidity.

What Is the Strongest Glue to Use on Plastic?

The strongest glue to use on plastic depends on the specific application. Epoxy and cyanoacrylate (super glue) are among the strongest adhesives for bonding plastic surfaces, while polyurethane-based adhesives like Gorilla Glue are also popular choices.

What Are the Disadvantages of Gorilla Glue?

One disadvantage of Gorilla Glue is that it requires moisture to activate its adhesive properties, thus moisture-sensitive materials such as paper, leather, and fabrics can be damaged6.

Additionally, it can expand while drying, which may cause the glue to seep out of the bond area and create a mess. Lastly, cured Gorilla Glue is difficult to remove or undo once it has set.


Gorilla Glue is a reliable adhesive for bonding plastics, and understanding its drying time is key to achieving a successful bond. While the initial drying time is around one to two hours, it’s essential to allow the glue to fully cure for at least 24 hours for optimal bond strength.

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