Epoxy floors have become increasingly popular for their durability, aesthetic appeal, and low maintenance. Whether for your garage, basement, or commercial space, epoxy flooring offers a high-performance finish that can last for years if installed correctly. However, improper installation can lead to costly repairs and unsatisfactory results. Here are the top 10 mistakes to avoid when installing epoxy floors.

1. Inadequate Surface Preparation
Surface preparation is the foundation of a successful epoxy flooring installation. One of the most common mistakes is neglecting to thoroughly clean and prepare the floor. Dirt, oil, grease, and moisture can all prevent the epoxy from adhering properly. Be sure to clean the surface, remove any contaminants, and repair cracks or damage. If necessary, grind the concrete to ensure a smooth and porous surface that allows the epoxy to bond.
2. Skipping the Moisture Test
Concrete is porous and can retain moisture, which can be disastrous for epoxy floors. If moisture seeps up from the concrete, it can cause the epoxy to lift, bubble, or peel over time. Conducting a moisture test before installation is crucial, especially in basements or ground-level floors. This simple test can prevent future headaches and ensure your epoxy flooring remains intact.
3. Improper Mixing of Epoxy
Epoxy is a two-part product that requires precise mixing of resin and hardener in the correct ratio. A common mistake is either under-mixing or over-mixing the components. Follow the manufacturer’s instructions carefully, as improper mixing can lead to weak, uneven flooring or even complete failure of the installation. Make sure to mix for the recommended time and use the right tools to achieve a consistent blend.

4. Applying Epoxy on a Damp or Humid Day
Environmental conditions play a significant role in epoxy installation. High humidity or applying epoxy on a damp surface can interfere with the curing process, leading to a cloudy finish, bubbling, or poor adhesion. Always check the weather forecast and avoid installing epoxy on humid or rainy days. If the environment cannot be controlled, use dehumidifiers or other methods to maintain optimal conditions.
5. Not Using the Right Type of Epoxy
Not all epoxy products are created equal, and using the wrong type for your specific application can lead to issues. Epoxy formulations vary in thickness, flexibility, and chemical resistance. Choose the right type of epoxy for your environment—whether it’s for a high-traffic area, a garage with exposure to oils and chemicals, or a decorative space. Consult with a professional if you’re unsure which product best suits your needs.
6. Ignoring Proper Drying Times
Patience is key when installing epoxy floors. Rushing the drying process can ruin your hard work. Epoxy needs adequate time to cure properly between coats, and this drying time can vary depending on temperature and humidity levels. Skipping or shortening this step can result in soft or tacky floors that will never fully harden. Be sure to follow the manufacturer’s recommended curing times for a strong, durable finish.
7. Applying Epoxy Too Thinly
Epoxy floors are known for their thickness and durability, but applying the product too thinly can compromise these qualities. A thin application may not provide the necessary protection against wear and tear, and the floor could be more prone to cracking or peeling. Ensure that you apply the epoxy at the recommended thickness for optimal performance and longevity.

8. Not Sealing the Floor
Sealing your epoxy floor adds an extra layer of protection against moisture, chemicals, and scratches. Skipping this step can leave your floor vulnerable to damage over time. A clear topcoat not only enhances the durability of your floor but also improves its shine and aesthetic appeal. Don’t forget to finish off your epoxy installation with a high-quality sealer.
9. Overlooking Ventilation
Proper ventilation is often overlooked but is crucial during epoxy installation. Epoxy products can emit strong fumes that may be harmful if inhaled in enclosed spaces. Ensure that your workspace is well-ventilated to allow the fumes to dissipate. Use fans or open windows and doors to improve airflow, and always wear protective gear, including a mask, to safeguard against harmful vapours.
10. Underestimating the Importance of Professional Help
While DIY epoxy flooring may seem cost-effective, it’s easy to underestimate the complexities involved. From surface preparation to applying the product evenly, there are many steps where mistakes can be made. If you’re unsure or lack experience, consider consulting with a professional installer. Hiring an expert can save you time, effort, and potential costs from errors in the installation process.
Final Thoughts
Epoxy flooring is a fantastic choice for many applications, but achieving a flawless result requires attention to detail. By avoiding these common mistakes, you can ensure a smooth, long-lasting, and beautiful epoxy floor. Whether you’re tackling the project yourself or hiring a professional, taking the time to do it right will pay off in the long run.
Have questions or need help with your epoxy flooring project? Contact us at HDEpoxyFloor.com for professional advice and installation services.

At HD Custom Concrete Finishes we install a wide range of product options from quartz, flake, solid colour, custom colour, metal finish, marble finish, and concrete sealing. We at HD Custom Concrete Finishes excel at exposing the beauty of concrete and providing a long-lasting finish. Whether it’s your garage or your warehouse, we’re committed to assisting you in finding the right floor customization. Our trained crews take the time to get it right, right from the start of the project.
HD Custom Concrete Finishes provides quality epoxy floor installation and concrete sealing. We specialise in completing complex projects on time and within budget using the highest quality products available on the market while providing the quality and service you expect from a family-run operation. Call 519.637.0606 or click here to schedule a time to speak with one of our estimators.
25-April-2024
By: HD Painting Contractor Ltd.