Epoxy floors are a durable and stylish option for outdoor concrete surfaces, but they’re not without their challenges. If installed improperly or exposed to harsh conditions, they can develop a range of issues, from bubbling to cracking. The good news is that most problems can be avoided with the right approach.
Here’s a closer look at common epoxy flooring problems and how to address them effectively.
Bubbling and blistering occurs when air or moisture becomes trapped under the epoxy surface. This results in small imperfections that compromise the floor’s look and durability. Adelaide’s climate, with its fluctuating humidity, can increase the likelihood of this issue, especially on unsealed surfaces.
Start with a Dry Surface: Moisture is one of the biggest causes of bubbling. Ensure the concrete is completely dry before applying epoxy.
Use a Vapour Barrier: Installing a vapour barrier prevents moisture from seeping up through the concrete and disrupting the epoxy layer.
Avoid Over-Mixing: Stirring epoxy too vigorously introduces air bubbles. Follow the manufacturer’s guidelines for proper mixing.
When epoxy starts peeling away from the surface, it’s usually due to poor adhesion. This can happen if the concrete wasn’t prepared correctly or if the epoxy layer was applied too thin. Peeling isn’t just a cosmetic issue—it also leaves the surface more vulnerable to damage.
Prepare the Surface Thoroughly: Clean and etch the concrete before application to create a surface to which the epoxy can bond.
Apply the Epoxy Correctly: Don’t rush the process. Apply the epoxy evenly and let it cure completely to ensure a strong bond.
Control the Environment: Extreme heat, cold, or humidity can interfere with epoxy’s adhesion. Try to apply epoxy in mild conditions, especially in Adelaide’s unpredictable weather.
Roller marks and patchy finishes are signs of inconsistent application. This can happen when low-quality tools are used or when epoxy is spread unevenly across the surface.
Choose High-Quality Tools: Use professional-grade rollers specifically designed for epoxy application. Cheap tools lead to poor results.
Apply in Even Layers: Make sure you’re applying even pressure and working systematically to avoid overlapping strokes.
Don’t Skimp on Product: Applying too little epoxy can lead to thin spots that dry unevenly. Always mix and pour enough for full coverage.
Outdoor epoxy floors can lose their vibrant colour over time, especially if exposed to UV rays. Yellowing is one of the most common complaints with epoxy floors in sunny areas like Adelaide.
Use a UV-Resistant Coating: Some epoxy products are specially formulated to resist UV damage. A clear UV topcoat can also protect against fading.
Clean Regularly: Dirt and grime can dull the surface, so regular cleaning will help maintain the floor’s appearance.
Cracks can appear in epoxy floors for a number of reasons. Pre-existing cracks in the concrete, temperature changes, or heavy impacts can all contribute. Cracks don’t just look bad—they also allow moisture and debris to seep into the floor.
Repair Cracks Before Applying Epoxy: If the concrete has cracks, fill them in and level the surface before coating it with epoxy.
Use a Flexible Epoxy: Certain epoxy formulations are designed to handle slight movements in the substrate without cracking.
Apply the Right Thickness: Follow the manufacturer’s recommendations for epoxy thickness to prevent weak spots.
While epoxy floors are a robust and visually appealing solution for outdoor spaces, preparation, proper application, and maintenance are key to avoiding common problems.
At Express Epoxy Flooring, we specialise in delivering seamless, durable epoxy finishes for outdoor concrete surfaces across Adelaide. Our team pays attention to every detail—from surface preparation to final application—so you can enjoy long-lasting results without headaches.
If you’re ready to enhance your outdoor space with a high-quality epoxy finish, contact us today for expert advice and services.
Bubbles are typically caused by trapped air or moisture under the epoxy, often due to insufficient surface preparation or the absence of a vapour barrier.
Peeling can be avoided by thoroughly preparing the surface, applying the epoxy correctly, and allowing it to cure under proper conditions.
Use a UV-resistant epoxy or a clear protective topcoat to prevent discolouration and yellowing caused by sun exposure.
Cracks should be repaired before applying epoxy. For existing epoxy floors, address the underlying issue before recoating the surface.
Yes, uneven areas can be sanded down and recoated, but the best approach is to prevent roller marks by using high-quality tools and consistent application techniques.
Mild, dry weather with moderate temperatures is ideal. Avoid applying epoxy in extreme heat, cold, or high humidity.
