Quartz Broadcast System Concrete Services

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Quartz Broadcast System Concrete Services

Epoxy or polyaspartic base coat with kiln-dried quartz aggregate broadcast to full rejection, creating a slip-resistant, seamless surface with excellent compressive strength. Common in commercial kitchens, pool decks, and locker rooms.

Quartz broadcast systems pair an epoxy or polyaspartic binder with kiln-dried, graded quartz aggregate broadcast to full rejection — meaning aggregate is broadcast until no more will adhere — then the excess is swept and a sealer or topcoat is applied. The result is a dense, seamless, slip-resistant surface with exceptional compressive strength and excellent resistance to thermal shock and chemical exposure. The texture profile is adjustable by aggregate size (coarser for pool decks and exterior applications, finer for food service floors) and the system is fully seamless, eliminating the grout lines that harbor bacteria in commercial kitchen tile floors. Concrete Doctor installs quartz broadcast systems throughout the Denver metro on pool decks, commercial kitchens, restaurant floors, locker rooms, and public restrooms.

Common Quartz Broadcast System Grades

Single-layer broadcastDouble-broadcastTrowel-applied mortar

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Quartz Broadcast System Service FAQs

Commercial kitchen floors must be slip-resistant, cleanable, chemical-resistant, and able to withstand thermal shock from hot water cleaning. Ceramic or quarry tile achieves most of these, but its grout joints are chronically difficult to sanitize and become porous over time, creating a food-safety liability. A properly installed quartz broadcast epoxy system is completely seamless — there are no joints for grease, food particles, or bacteria to collect in. Its slip resistance (DCOF above 0.42 wet, per ANSI A326.3) meets or exceeds NSF requirements, and the epoxy binder resists caustic cleaners, degreasers, and sanitizers. The main consideration is surface profile prep — any thermal shock cracking in the concrete substrate should be repaired before coating to prevent reflective cracking through the system.

Kiln-dried quartz aggregate has a Mohs hardness of 7, meaning it retains its angular texture profile over years of foot and vehicle traffic without polishing smooth the way painted or plain epoxy surfaces do. A standard quartz broadcast floor achieves a Pendulum Test Value (PTV) of 36+ and a DCOF of 0.55–0.70 wet, well above the 0.42 threshold recommended for commercial wet-area floors. The key is aggregate size and application technique: full-rejection broadcast ensures full coverage with no bald spots, and the correct topcoat is applied at a controlled film thickness to encapsulate the aggregate texture without bridging over it. Concrete Doctor specifies aggregate size based on the application — finer mesh for comfort underfoot in kitchens, coarser mesh for pool decks and exterior ramps where maximum traction is the priority.

Yes, with the right binder selection. Standard epoxy alone is not recommended for exterior Colorado applications — UV degradation and freeze-thaw cycling at the surface can delaminate the coating within a few seasons. A polyaspartic or polyurethane topcoat over the quartz broadcast is essential for UV stability and flexibility through temperature swings. The concrete substrate must also be in sound condition: spalled, delaminated, or structurally cracked slabs should be repaired or replaced before coating, because a thin broadcast system cannot bridge structural movement. For pool decks, Concrete Doctor selects a cooler-surface-temperature quartz color palette and a matte or satin finish to reduce barefoot discomfort on hot Colorado summer days.

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Repair first. Replacement only when necessary.