What is the difference between one-hundred-percent solids and water-based epoxy in Ottawa

100 Percent Solids vs. Water-Based Epoxy: What Ottawa Homeowners Need to Know

The difference between 100 percent solids and water-based epoxy comes down to what happens when the coating cures, and that single distinction drives every practical difference in thickness, durability, cost, and performance on Ottawa floors. With 100 percent solids epoxy, the entire volume of mixed material stays on the floor as hardened coating — nothing evaporates. With water-based epoxy, roughly 40 to 60 percent of the applied volume is water that evaporates during curing, leaving behind a much thinner film of actual epoxy resin.

In practical terms, a single coat of 100 percent solids epoxy builds to 8 to 12 mils of film thickness, while water-based epoxy produces just 3 to 5 mils per coat. That thickness difference translates directly into durability, abrasion resistance, and lifespan. In an Ottawa garage where road salt, gravel, tire friction, and freeze-thaw stress are relentless from November through April, a thicker coating simply lasts longer. Most professional Ottawa installers expect a properly applied 100 percent solids system to last 10 to 20 years in a residential garage, while water-based coatings typically show significant wear in 3 to 5 years under the same conditions.

Chemical resistance is another major gap. 100 percent solids epoxy stands up well to road salt, de-icing chemicals, gasoline, oil, brake fluid, and most household chemicals. Water-based epoxy has moderate chemical resistance and is notably more vulnerable to hot tire pickup — a condition where warm tires soften the coating and peel it away when the vehicle moves. In Ottawa summers when garage temperatures can exceed 35 degrees Celsius, hot tire pickup is a common complaint with lower-grade coatings.

Cost is where water-based epoxy has its clear advantage. In Ottawa, water-based epoxy runs $3 to $7 per square foot professionally installed, while 100 percent solids epoxy costs $6 to $12 per square foot. For a standard 500-square-foot two-car garage, that means roughly $1,500 to $3,500 for water-based versus $3,000 to $6,000 for 100 percent solids. However, when you factor in the shorter lifespan and potential recoating costs of water-based, the price-per-year math often favours 100 percent solids.

Application is another consideration. Water-based epoxy is more forgiving to work with — it has a longer pot life, rolls out easily, cleans up with water, and produces minimal fumes. 100 percent solids epoxy has a short working time of 20 to 40 minutes per batch, requires experienced hands to spread evenly at the correct thickness, and demands precise temperature and humidity conditions. This is why 100 percent solids is strictly a professional-grade product in Ottawa — it is not a DIY-friendly material.

For Ottawa specifically, the climate makes this decision clearer than in milder regions. The combination of extreme temperature swings, heavy road salt exposure, and moisture from snowmelt means your garage floor coating needs every advantage it can get. Water-based epoxy is acceptable for light-duty indoor spaces like a basement storage room, but for any garage floor, workshop, or high-traffic area, 100 percent solids is the standard that Ottawa flooring professionals recommend. To get accurate quotes for your specific floor, the Ottawa Construction Network directory at justynrookcontracting.com connects you with local contractors who can assess your concrete condition and recommend the right system.

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Looking for experienced contractors? The Ottawa Construction Network connects Ottawa homeowners with qualified professionals:

• Homeupgraders
• RenoMotion Inc.
• Rrenovatios
• PLD Residential Renovations Inc.
• Atlantis Tiles and Flooring