- Product: Sherwin-Williams Poly-Crete SLB — 100% solids, seamless cementitious urethane self-leveling system with flintshot quartz broadcast (slip-resistant finish)
- Nominal Thickness: 3/16 inch, broadcast and sealed
- Finish: slip-resistant flintshot broadcast; texture specified to meet ANSI A326.3 (wet DCOF of 0.42 or higher for level interior floors walked on wet), confirmed by sample panel
- Moisture Tolerance: moisture mitigating, installs over concrete up to 99% RH; primer can be eliminated in most environments
- Thermal: thermal-shock resistant body coat — rated for rapid temperature cycling such as hot washdown over ambient or chilled slabs
- System Performance (Poly-Crete platform, per Sherwin-Williams system data):
- – Compressive strength 9,000 psi (ASTM C579)
- – Hardness Shore D 75–80 (ASTM D2240)
- – Indentation: no slip or flow at 158°F (MIL-D-3134J)
- – Exact per-product values are on the embedded data sheet
- System Build: primer (where required), Poly-Crete body coat, flintshot quartz broadcast, grout coat, seal/topcoat (Poly-Crete TF Plus or Color-Fast)
- Color: Poly-Crete system colors, 10 standard
- Typical Uses: commercial kitchens, food processing, breweries and distilleries, warehouses, storage, light manufacturing, high-traffic areas, veterinary and kennels
- Former Names: Dur-A-Flex Poly-Crete SLB; General Polymers FasTop Topfloor SL13
- Authorized Installer: Sherwin-Williams High Performance Flooring; in-house W-2 crews mobilize nationwide
Phone: +1 (844) 687-1961
Sherwin-Williams Poly-Crete SLB is a 100% solids, seamless 3/16-inch cementitious urethane self-leveling floor system with a flintshot quartz aggregate broadcast that produces a slip-resistant finish. The body coat resists thermal shock and is moisture mitigating — it installs over concrete up to 99% relative humidity and can eliminate the primer in most environments — while the topcoat options carry the chemical and abrasion resistance the space requires. It is the slip-resistant self-leveling member of the Poly-Crete line, specified for kitchens, food processing, breweries and distilleries, warehouses, and high-traffic areas. If your specification still reads Dur-A-Flex Poly-Crete SLB or the older General Polymers FasTop Topfloor SL13, this is the same system under its current Sherwin-Williams High Performance Flooring name. Craftsman Concrete Floors installs Poly-Crete SLB nationwide as an authorized Sherwin-Williams High Performance Flooring installer.
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About Sherwin-Williams Poly-Crete SLB
Poly-Crete SLB is the slip-resistant self-leveling system in the Poly-Crete cementitious urethane line. Three things define where it fits: the flintshot broadcast that makes it slip-resistant, the moisture tolerance that lets it go down where epoxy cannot, and the naming history that means it appears in older specs under two earlier brand names.
Self-Leveling at 3/16 Inch With a Slip-Resistant Broadcast
Poly-Crete SLB pours as a self-leveling body coat and is then broadcast with flintshot quartz to a slip-resistant texture, finished with a Poly-Crete TF Plus or Color-Fast seal coat. The broadcast is what separates it from the smooth Poly-Crete SL: SLB is specified where wet, greasy, or washdown floors make slip resistance the governing concern; the broadcast texture is specified to meet the ANSI A326.3 wet-DCOF threshold of 0.42 for level interior floors walked on wet. The texture and grit can be tuned to the facility, and a sample should be tested before installation on any slip-critical floor.
Moisture Tolerance and Thermal Shock
The Poly-Crete body coat is moisture mitigating and installs over concrete measuring up to 99% relative humidity, which in most environments eliminates the separate moisture-mitigation primer that an epoxy floor would require — a real schedule and cost advantage on green or damp slabs. It is thermal-shock resistant for spaces with rapid temperature cycling, and the published Poly-Crete system carries a 9,000 psi compressive strength (ASTM C579) and a Shore D hardness of 75 to 80. Exact values for this specific build are on the embedded data sheet.
Formerly Dur-A-Flex Poly-Crete SLB and FasTop Topfloor SL13
Sherwin-Williams acquired Dur-A-Flex on July 1, 2022, and in the 2025 branding transition consolidated its resinous flooring under Sherwin-Williams High Performance Flooring. Poly-Crete SLB kept its name through that change, but the older General Polymers urethane cement line folded into it: the system specified years ago as FasTop Topfloor SL13 is today’s Poly-Crete SLB. A specification written under either legacy name installs as the current Poly-Crete SLB, and Craftsman cross-references the legacy product to the current system during pre-bid review.
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Frequently Asked Questions
Poly-Crete SLB is the broadcast version of the Poly-Crete self-leveling system: a cementitious urethane with a natural quartz aggregate broadcast that cures to a slip-resistant, gloss finish. Sherwin-Williams positions SLB for manufacturing environments, breweries, and distilleries, where wet floors and traffic demand grip. The broadcast locks into the urethane matrix, so the texture is structural rather than a topical coating that wears away. Underneath, it behaves like the rest of the family, with thermal-shock resistance, slab-moisture tolerance, and expansion movement close to concrete. Its smooth sibling, Poly-Crete SL, covers floors where flatness beats texture. Craftsman Concrete Floors installs SLB nationwide as an authorized Sherwin-Williams HPF installer.
Breweries and distilleries throw hot water, live steam near kettles, organic acids, sugars, caustic CIP chemistry, and constantly wet traffic at their floors. SLB’s broadcast texture plus urethane cement chemistry answers all of it. The quartz broadcast keeps footing under wash water, wort, and spillage where a smooth floor becomes a hazard. The cementitious urethane base absorbs the thermal shock of hot discharge and cold rinse cycles that crack epoxy, and chemical resistance covers the acid-and-caustic swing of clean-in-place sanitation. The gloss finish presents well in taproom-visible production spaces without sacrificing grip. Craftsman Concrete Floors installs SLB in operating breweries and distilleries with the drainage, cove, and phasing production schedules require.
Poly-Crete SLB installs at approximately 3/16 inch, the self-leveling body plus its quartz broadcast. That puts it between the 1/8-inch smooth SL and the heavy trowel-applied HF mortar. The build carries pallet-jack and forklift traffic, impact, and thermal cycling in standard wet-manufacturing service. Where exposure escalates to heavy impact and the most aggressive thermal attack, the specification steps up to HF’s 1/4–3/8-inch trowel-applied build. Where the floor is dry and flatness governs, SL’s smooth 1/8 inch is the economical answer. Thickness is a service-condition decision, and the family’s grades exist so the build matches the abuse. Craftsman Concrete Floors specifies the thickness band to your measured traffic and exposure, with the data sheet on this page for submittals.
A broadcast SLB floor maintains with mechanical scrubbing, meaning auto-scrubbers and appropriate pads, because the texture that provides grip also holds soil harder than a smooth grade. Routine care is standard industrial: dry soil removal, then scrub with the sanitation chemistry the plant already runs, which the urethane cement chemistry withstands. Gloss retention follows cleaning discipline, and the finish reads well under audit lighting when the program is consistent. Because the broadcast is structural, texture does not wear away into a maintenance liability the way topical anti-slip coatings do. Periodic inspection of high-impact zones and drain perimeters catches wear early, when localized repair is simple. Craftsman Concrete Floors advises on the maintenance program at turnover so texture, hygiene, and appearance hold together long-term.
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