You’ve done the hell of cleaning and pre-treating, and now it’s time to put the finishing touches on your garage floor coating project. The beauty and practicality of a top-notch epoxy or polyaspartic floor often lies in the edges and details.
A perfectly finished edge not only makes your garage look like a professional showroom, but it also provides critical protection from moisture, dust, and dirt.
This article explains the three main edge treatments: waterproof curved skirting , standard skirting , and finishing techniques for doorways and drains .
Wall trim: a choice between function and aesthetics
Where the coating meets the wall, you have two main finishing strategies, and their pros and cons determine whether your garage emphasizes a clean, hygienic or traditional look.
Preferred option: integrated curved skirting
Cove Base is the gold standard in commercial and industrial applications and the top choice for high-performance garage flooring.
How it works: Before (or after) floor coating, a special epoxy mortar mix is hand-troweled along the corners of the wall to create a smooth, upward curve (usually 4-6 inches high). This curve seamlessly extends the floor coating onto the wall.
Key advantages:
Completely waterproof (“bathtub effect”): Creates a seamless, gap-free transition, completely preventing water, oil or chemicals from seeping into the wall or under the floor from the corners.
Easy to clean: There are no sharp or right angles, so dirt cannot accumulate. Use the wiper to easily sweep out water and stains, greatly improving hygiene.
Ultimate Professional Look: Provides the smoothest, most modern professional look and is often used in locations requiring high hygiene standards.
Tips: A special curved trowel is required for shaping. Once the curved base is dry, apply a topcoat and color chip (if using) to match the look of the floor.
Alternative: Traditional Garage Skirting
If you’re going for a traditional look, or your walls already have wood or plasterboard surfaces, you can use traditional skirting boards to finish the edges.
Material selection: Avoid using wood or gypsum board, which are susceptible to moisture and deformation. We recommend choosing PVC skirting or rubber/vinyl skirting (Wall Base Molding) , which are waterproof, durable, and easy to clean.
Installation time: Usually after the floor coating is completely cured, use structural glue or nails to install the skirting board to the wall to cover the gap between the floor coating and the wall.
Limitations: This method leaves a tiny seam between the floor and the bottom of the skirting board. While aesthetically pleasing, water or fine dust can still seep through this gap, making it less hygienic and waterproof than curved skirting.
Tips for handling doorways and traffic edges
The edges where garage coatings are most susceptible to failure are usually around openings, namely garage doors, pedestrian doors, and steps.
Garage Doors: Establishing a Clean “Stop Line”
The bottom of the garage door is where the coating meets the exterior, and you want to create a clean, professional edge.
Determine the edge: With the garage door fully lowered, use a pencil or marker to mark the line where the bottom of the door meets the ground.
Create the groove (professional method recommended):
Purpose: To prevent the coating from flowing onto the exterior of the garage before curing and to create a clean, permanent finish.
Tools: Use a handheld concrete grinder to cut a shallow groove along the marked line . The depth of the groove should be slightly greater than the final thickness of your coating.
Finishing: When applying the topcoat, extend the coating precisely to the edge of this groove so that when the door is closed, the coating edge is completely hidden, looking both beautiful and professional.
Using masking tape (a common DIY practice): Before coating, apply high-quality masking tape along the marked lines, ensuring the edges are compacted. Remove the tape immediately while the coating is still wet for the cleanest, straightest edge.
Pedestrian doors and stair edges
Pedestrian doors: If there are steps in the pedestrian door area, make sure to extend the coating to the vertical side (risers) and horizontal side (treads) of the steps. This not only protects the steps but also makes the entire area look seamless.
External edge: For doorways leading to the outdoors or other rooms, a transition strip is usually set at the doorway to cover the gap between the two floor materials and provide a neat edge.
Final details: decorative and functional improvements
Perfectionists pay attention to the little details that can take your garage coating project to the next level.
Drain trim: If there is a floor drain in the garage, make sure the coating surrounds the edge of the drain and extends slightly inside to form a basin, ensuring that water flows smoothly into the drain while preventing water from seeping in through the gaps around the drain.
Filling Joints: The final step before coating is to treat the concrete’s expansion or control joints.
Caulk: Use a flexible polyurethane caulk to fill the gap to just below ground level.
Purpose: This allows the coating to span these gaps, while the underlying caulk absorbs slight movements of the concrete, preventing the coating from cracking at these “stress points.”
Overall consistency: Whether you have a curved skirting or a traditional skirting board, make sure the finish and color chip you use for the edge treatment perfectly matches the main section of the floor for a seamless visual connection.
The key to a perfect garage floor lies in preparation (cleaning and degreasing, as mentioned in the previous article) and finishing. Don’t skimp on the last step!
