Phoenix heat can make it feel like moisture is a non-issue. But every concrete slab contains moisture. The real question is whether a polyurea garage floor system is engineered for moisture mitigation or set up to blame the slab later.
Polyurea “Limits” That Turn Into Warranty Escape Clauses
Many 1-day garage floor coating installers point to numbers like a maximum Tramex reading or a low MVER threshold. Those figures are often presented as “standards,” but they function more like prewritten loopholes.
If the floor fails, a meter reading is taken at the failure spot, where vapor pressure spikes, and the warranty is denied. Homeowners rarely see pre-install documentation because it often does not exist.
Why a 1-Day Install Lets Vapor Win
A speed-first approach commonly uses fast-curing polyurea or polyaspartic primers directly on concrete without a true moisture-mitigating base coat. Quick cure is not the same as moisture mitigation. Without a vapor-control layer, natural Moisture Vapor Transmission can push upward and cause blistering, peeling, and delamination, even in Phoenix where irrigation, monsoon seasons, and ground moisture still drive vapor through slabs.
Moisture is not “only a humid-state problem.” Concrete acts like a sponge and continuously exchanges moisture with its environment. A polyurea system that treats moisture as an exception is betting your garage floor on perfect conditions that do not exist.
Our Garage Floor Coating Systems Start With Moisture Mitigation
GarageFloorCoating.com (Phoenix) installs systems designed for long-term adhesion.
We begin with an industrial, 100% solids epoxy primer formulated for moisture mitigation, creating a chemically anchored foundation. Next comes a decorative flake broadcast, followed by two 100% solids polyaspartic clear coats for durability, UV stability, and easy cleanup.
Want to see options before you commit? Use our Live Coatings Visualizer to preview colors and flake blends in a garage-like setting.
If you are considering a 1-day polyurea install, ask what layer provides true moisture mitigation. Then talk with GarageFloorCoating.com (Phoenix) to schedule a consultation and get a system built to last.