Epoxy Resin
How to Explain the Value of Epoxy Flooring to Price-Comparing Clients
What Epoxy Flooring Installers Hear All the Time If you’re an epoxy flooring installer, we bet you’ve heard it all
How professional installation prevents common epoxy flooring problems
Epoxy flooring is an amazing, durable, and attractive option when done right.
Laying epoxy flooring correctly includes expert surface preparation, mixing, application, and finishing. But there are times when an epoxy resin floor fails. And that’s what we’re here to talk about.
Several signs tell the tale of a failed epoxy resin floor. These are:
- Peeling/delamination
- Bubbling/blistering
- Discolouration
Proper training should be the cornerstone of any epoxy flooring business. Here, we explain how to prevent these issues with the right knowledge and training.
Poor surface preparation: the No.1 cause of epoxy floor failure
The success of any epoxy floor depends on what happens before the epoxy floor coating is applied. Concrete must be properly prepared to create a strong bond. Sweeping or cleaning the surface alone isn’t enough. Dust, grease, oil, old coatings, and general contamination can all prevent epoxy from adhering correctly. This can then lead to peeling, bubbling, and essentially, premature failure.
Before we look at the two main methods of concrete surface prep, let’s talk about cracks or damage in the concrete itself.
Repairing cracks and surface damage
You should always repair concrete cracks and damaged substrates before applying epoxy flooring. If left untreated, epoxy can sink into cracks, create an uneven finish, or allow existing damage to show through the final coating. Over time, these weak points can reopen and reduce the durability of the epoxy floor.
Proper crack repair:
Creates a smoother, more stable surface.
Helps the epoxy bond evenly across the entire area.
Improves both the appearance of the finished floor and its long-term performance.
Now, discuss those concrete surface preparation methods.
Mechanical concrete grinding
This method has a dual purpose: it effectively removes surface contamination (such as oil, grease, dust, laitance, and old coatings) while creating the correct texture for epoxy to bond to. This helps reduce the risk of peeling, bubbling, and delamination later on.
Because it provides consistent and reliable results, concrete grinding is widely considered the professional standard for epoxy flooring installation.
Acid etching
Acid etching is sometimes used as an alternative preparation method, but it’s less reliable than mechanical grinding. While it can help clean the surface and slightly roughen the concrete, it doesn’t remove contaminants or old coatings as effectively, so it’s often used for very light residential applications
This table compares the two concrete prep methods at a glance:
Moisture and environmental epoxy floor issues
Moisture and humidity are also two of the most common hidden causes of epoxy floor failure, especially in the UK, where damp conditions and older concrete slabs are common. Identifying these issues before installation prevents even a well-applied floor from failure.
Common signs of moisture problems
- Damp patches on the concrete
- White powdery residue (efflorescence)
- Previous coatings lifting or peeling
- Dark patches that don’t fully dry
How to test and treat moisture issues
- Carry out a moisture test before applying epoxy, especially on older or ground-floor concrete
- Use a hygrometer or a calcium chloride test for accurate readings
- Check the manufacturer’s moisture tolerance before installation
- If moisture levels are too high, apply a moisture barrier primer before coating
- Avoid installation during extreme cold or very humid conditions where possible
How mixing and application errors can cause epoxy floor failure
Even with the right surface and environmental preparation, poor mixing and application of epoxy resin can quickly lead to an epoxy floor failing. Small mistakes during this stage affect both the finish and the long-term durability of the floor, both of which are often the most visible to clients.
Let’s look at some of these errors in more detail.
Incorrect epoxy resin mixing ratios
Epoxy resin systems rely on precise ratios between the resin and hardener. Using too much or too little of either component can prevent the product from curing properly, like so:
- Too much hardener: can lead to brittle or uneven curing.
- Too little hardener: may leave soft spots or a tacky finish.
- Insufficient mixing: creates weak areas across the floor.
Tip: Always follow the manufacturer’s instructions exactly and mix thoroughly before application.
Working beyond the pot life of epoxy resin
Epoxy resin pot life is the amount of time you have to apply epoxy after mixing. At this point, the product begins to cure and becomes difficult to work with. These are some of the ways this translates:
- Epoxy may become too thick to spread evenly
- Roller marks and patchy finishes become more likely
- Poor bonding can occur if the application is delayed for too long
Tip: Plan your schedule to complete the entire floor within the correct working time for your epoxy ratios.
Uneven epoxy floor coating application
Applying epoxy inconsistently can create visible defects that customers notice immediately, such as:
- Uneven thickness across the floor
- Patchy gloss levels or inconsistent colour
- Air bubbles trapped in the coating
- Visible roller or squeegee marks
Tip: Invest in a high-quality epoxy flooring training course to achieve the smooth, even finish your customers want. This way, you’ll learn the right tools, correct technique, and careful timing required to achieve first-rate epoxy flooring installations.
Avoid epoxy flooring failure with Xtreme Polishing Systems UK
Avoiding epoxy floor failure starts with having the right support from day one. At Xtreme Polishing Systems UK, we supply the tools, equipment, and materials needed for successful epoxy flooring installation, alongside expert advice and hands-on epoxy resin courses.
Learning from experienced professionals helps you avoid common beginner errors and build confidence much faster. If you’re serious about getting started, explore our epoxy training courses or contact our team for advice on the best next step.
