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Epoxy and polyaspartic are the two coatings you will hear about most when you are getting a garage or basement floor done in Calgary. They are not competitors so much as teammates. Epoxy is the thick, tough base that bonds into the concrete. Polyaspartic is the fast-curing, UV-stable topcoat that takes the daily abuse. Most of the best floors use both.
Here is how each one works, where each one wins, and how to choose for your space.
What Is Epoxy?
Epoxy is a two-part resin that cures into a hard, dense plastic. A 100% solids epoxy goes on thick, fills small imperfections and bonds deeply into ground concrete. It is excellent at building film thickness, carrying flake or quartz, and creating decorative finishes like metallic marble.
- Strengths: strong bond to concrete, high build, great for decorative and metallic work, good chemical resistance.
- Weak spots: slower cure, and most epoxies will amber or chalk in direct sunlight over time if they are left without a UV-stable topcoat.
What Is Polyaspartic?
Polyaspartic is a type of polyurea. It cures fast, stays clear, and holds up to sunlight without yellowing. It is flexible enough to handle temperature swings and hard enough to resist scratches and hot tires.
- Strengths: fast return to service, UV stable, very scratch and abrasion resistant, can be applied across a wider temperature range.
- Weak spots: the fast cure gives the installer a short working window, so it rewards experience. It is also more expensive per litre than epoxy.
Head to Head
- Cure time: polyaspartic is much faster. Many polyaspartic floors take light foot traffic the same day. Epoxy typically needs longer before foot traffic and longer again before vehicles.
- UV and sunlight: polyaspartic stays clear. Epoxy can amber, which matters in sunrooms, patios and garages with the door open all summer.
- Bond and build: epoxy is the better base coat. It builds thickness and wets into the concrete.
- Decorative looks: epoxy wins. Metallic and deep solid colours are epoxy jobs.
- Hot tire resistance: both perform well when the slab is ground properly. A polyaspartic topcoat adds an extra layer of protection.
Why Most Calgary Floors Use Both
A hybrid system gives you the best of each: an epoxy base for bond and build, flake or quartz broadcast into it, and a polyaspartic topcoat for UV stability and wear. This is the system we recommend for most garages, sunrooms and patios around Calgary, where floors see road salt, chinook temperature swings and plenty of sun through open doors.
Where Epoxy Alone Makes Sense
Indoor basements, utility rooms and decorative metallic floors that never see direct sun can use an epoxy build with an epoxy or urethane topcoat.
Where Polyaspartic Matters Most
Sunrooms, covered patios, garages facing south or west, and any floor that needs to be back in service quickly. You can see a sunroom done this way in our gallery.
What About the One-Day Floor?
Some companies sell a full polyaspartic floor completed in one day. It can be a good product when the slab is ground properly. The risk is that the speed becomes the selling point and prep gets rushed. Ask how the concrete will be prepared and how thick the finished system will be before you choose based on speed.
How to Choose
- Is the floor in sunlight? If yes, finish with polyaspartic.
- Do you want a metallic or deep solid colour look? Build it in epoxy.
- Do you need the space back fast? Lean on polyaspartic.
- Is it a working garage? A flake hybrid system is the safe, great-looking choice.
Prep Matters More Than the Product
Whichever coating you choose, the floor is only as good as the bond underneath it. Epoxy and polyaspartic both need concrete that has been diamond ground to open the surface, cleaned of dust, and repaired where it is cracked or spalled. A premium polyaspartic rolled over a sealed, dusty or oily slab will still let go. When you compare quotes, compare the prep first and the product second.
Moisture Testing
Basements and slabs on grade can push moisture vapour up through the concrete. Too much moisture under a coating causes bubbles, blisters and loss of bond. A good installer tests before coating and uses a moisture-tolerant epoxy primer where needed. Polyaspartic alone is usually not the right first coat on a damp slab.
Temperature and Cure
Calgary garages can sit well below freezing for weeks. Epoxy cures slowly in the cold, while polyaspartic is more forgiving at lower temperatures. Either way, the slab needs to be within the product’s temperature range during install and cure. In an unheated garage, spring through fall is the best window.
How Long Does Each Last?
Lifespan depends far more on prep, thickness and use than on the label. A properly ground slab with a full epoxy base, broadcast and polyaspartic topcoat will hold up to years of daily parking with normal care. Thin, single-coat floors of either product wear through much sooner. When you get a quote, ask how many coats go down and what the finished thickness will be.
Not sure which fits your floor? Send us photos and we will recommend a system and give you a fixed price. See every system on our services page, or read our guide to epoxy flooring cost in Calgary.
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Frequently Asked Questions
Is polyaspartic better than epoxy?
Neither is better for every job. Epoxy is the better base coat for bond, build and decorative work. Polyaspartic is the better topcoat for UV stability, scratch resistance and fast cure. Most quality floors use an epoxy base with a polyaspartic topcoat.
Does epoxy turn yellow in the sun?
Most epoxies will amber over time in direct sunlight. A UV-stable polyaspartic topcoat protects the colour, which is why it is recommended for sunrooms, patios and garages with lots of sun.
How fast can I use a polyaspartic floor?
Polyaspartic cures much faster than epoxy. Light foot traffic is often possible the same day, with vehicles following after the full cure time your installer gives you.
What system is best for a Calgary garage?
A hybrid flake system: epoxy base, vinyl flake broadcast and a polyaspartic topcoat. It handles road salt, hot tires and temperature swings, and it hides everyday dirt.