- Current Name: Sika Ucrete SLB+ (written Ucrete SLB Plus where the character set drops the plus sign)
- Former Names: None for the system name; the base product’s slurry role was documented in the PurCem era as Sikafloor-22 NA PurCem, current name Sika Ucrete HS22 NA
- System Type: Solid-color, self-leveling cementitious polyurethane broadcast slurry
- Thickness: 3/16″ to 1/4″ (188 to 250 mils); 3/16″ minimum
- Finish: Solid color, broadcast texture; standard Sika Ucrete colors
- Service Temperature: -40°F to 248°F
- Application Temperature: 40°F to 85°F ambient and substrate
- Topcoat / Accessories: Sika Ucrete TC31 NA seal at 15-20 mils (formerly Ucrete DP TC); Sikafloor-508 broadcast aggregate; Sikafloor-2570 WB optional primer; Sikafloor-521 with Sikafloor Urethane Pigment Pack alternate seal
- Shore D Hardness: 80-85 (ASTM D2240)
- Compressive Strength: 5,657 psi at 28 days (ASTM C579)
- Tensile Adhesion: Greater than 400 psi (ASTM D7234)
- Impact Strength: 5.02 ft-lb (ASTM D2794, tested at 1/8″)
- Substrate Minimum: 3,625 psi concrete, ICRI CSP 3-6 profile
Phone: +1 (844) 687-1961
Sika Ucrete SLB Plus, printed Ucrete SLB+ on Sika’s own documents, is a solid-color, self-leveling cementitious polyurethane broadcast system installed at 3/16 to 1/4 inch, 188 to 250 mils. The body coat is Sika Ucrete HS22 NA, the heavy-duty urethane cement slurry whose role Sika documented in the PurCem era as Sikafloor-22 NA PurCem, with Sikafloor-508 aggregate broadcast into the wet material and a Sika Ucrete TC31 NA seal at 15 to 20 mils closing the surface. The governing document is the Sika Ucrete SLB+ System Data Sheet, November 2025, Version 01.01. Craftsman Concrete Floors installs it nationwide as a Sika Certified Installer.
Ucrete SLB Plus sits in Sika’s broadcast tier. Ucrete SL and SL+ are straight slurry systems and Ucrete UD 200 goes down as a trowel-applied screed; the Ucrete SLB systems cast aggregate into the wet slurry for a textured wearing surface, and the Plus designation marks the heavier body of the pair. Sika’s sheet points the system at aggressive washdown environments, and the duty range, substrate tolerances, and spec-routing rules below are the numbers an estimator prices against.
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Sika Ucrete SLB Plus Build, Duty Range, and Spec Routing
The Sika Ucrete SLB+ System Data Sheet (November 2025, Version 01.01) governs this system, with cure and recoat detail deferred to the component product data sheets, chiefly Sika Ucrete HS22 NA (March 2026, Version 06.01). Every value in this section traces to those two documents. Where the system sheet and an older distributor copy disagree, the header date decides.
Ucrete SLB Plus vs Ucrete SLB, HS22 NA Body at 188 to 250 Mils
Both of the Sika Ucrete line’s broadcast systems share the wearing architecture. Sikafloor-508 aggregate is cast into a wet self-leveling slurry and sealed with Sika Ucrete TC31 NA at 15 to 20 mils, with Sikafloor-2570 WB as the documented optional primer and Sikafloor-521 with the Sikafloor Urethane Pigment Pack as the alternate seal. The difference sits underneath: Ucrete SLB runs Ucrete HS24 NA at 80 to 160 mils, while Ucrete SLB Plus runs Sika Ucrete HS22 NA at 188 to 250 mils. Coverage tells the same story from the pallet side. A slurry kit spreads about 31 square feet at 3/16 inch.
Substrate Gates at 3,625 psi, CSP 3-6, and the 85°F Ceiling
Application temperature is the tightest gate on the sheet: ambient and substrate hold between 40 and 85°F, which matters when pours land in unconditioned summer space. Moisture runs the other way. The system installs on green concrete at typically 7 to 10 days, over slabs reading above 4 percent surface moisture on a Tramex CME-type meter, and under 100 percent relative humidity per ASTM F2170. Concrete needs 3,625 psi minimum compressive strength profiled to ICRI CSP 3-6, and every free edge at perimeters, gutters, and drains turns into an anchor groove cut at twice the floor thickness. Per the Sika Ucrete HS22 NA product data sheet, the body coat takes foot traffic in roughly 18 hours and reaches full cure in about 5 days at 68°F.
Freezer-to-Washdown Duty and the USDA Line on the Sheet
Sika’s uses list names food processing plants, wet and dry process areas, freezers and coolers, dairies, breweries, wineries, distilleries, laboratories, chemical process plants, pulp and paper plants, warehouses, and pharmaceutical facilities. The chemistry carries the list. Physical characteristics hold from -40°F to 248°F, steam cleaning is documented at the full 3/16 to 1/4 inch thickness, and the slurry resists a wide range of organic and inorganic acids, alkalis, amines, salts, and solvents. Under impact the material deforms plastically rather than cracking or debonding, with a 5.02 ft-lb ASTM D2794 rating tested at 1/8 inch. The sheet also states the system meets USDA requirements for use in food plants. Facility-level selection lives on the vertical pages for dairy and meat processing, brewery flooring, and cold storage, not at code altitude here.
If the Spec Reads Sikafloor-22 NA PurCem, Ucrete 22NA, or Bare Role Letters
A specification naming Sikafloor-22 NA PurCem is naming the slurry role Sika now documents as Sika Ucrete HS22 NA, the base product of this system; shorthand entries reading Ucrete 22NA or Ucrete HS22 point at the same product. When such a spec calls for a heavy broadcast build, Ucrete SLB Plus is the current system that carries it. Verify the role match against the November 2025 sheet before substituting. Bare role letters are the other trap, since Sherwin-Williams High Performance Flooring publishes Poly-Crete SLB, an unrelated system; write the full brand-qualified name, Ucrete SLB+ or Ucrete SLB Plus, in every document. The full legacy line lives on the Sikafloor PurCem page, and installation routing, from spec review to crew scheduling, runs through the urethane cement contractor page.
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Frequently Asked Questions
Sika Ucrete SLB Plus, written Ucrete SLB+ on Sika’s documents, is a solid-color, self-leveling cementitious polyurethane broadcast system built on Sika Ucrete HS22 NA at 3/16 to 1/4 inch (188 to 250 mils). Aggregate is broadcast into the wet slurry and the surface closes with Sika Ucrete TC31 NA at 15 to 20 mils. Sika’s November 2025 system data sheet points it at aggressive washdown duty, from food processing plants to freezers, dairies, and breweries.
Base product and body thickness. Ucrete SLB Plus runs Sika Ucrete HS22 NA at 188 to 250 mils; Ucrete SLB runs Ucrete HS24 NA at 80 to 160 mils. Both broadcast Sikafloor-508 aggregate and seal with Sika Ucrete TC31 NA, so the wearing surface matches while the Plus build carries more than twice the minimum body for heavier thermal and mechanical duty.
No. They are separate systems from two manufacturers that landed on the same role letters independently. Sika Ucrete SLB Plus and Ucrete SLB belong to Sika’s Ucrete line, while Poly-Crete SLB is a Sherwin-Williams High Performance Flooring system with its own data sheet, so a specification should always state the full brand-qualified name.
3/16 to 1/4 inch, 188 to 250 mils, with 3/16 inch as the minimum per the November 2025 system data sheet. Steam cleanability is documented across that full range, and every free edge at perimeters, gutters, and drains anchors into a groove cut at twice the floor thickness.
At 68°F, the Sika Ucrete HS22 NA product data sheet (March 2026, Version 06.01) puts foot traffic at roughly 18 hours, light traffic at about 24 hours, and full cure at about 5 days. Cold spaces stretch the schedule, with foot traffic moving to about 24 hours and full cure to about 7 days at 50°F. The seal coat adds its own recoat window, so plan return-to-service from the component data sheets Sika lists for the build.
Sikafloor-22 NA PurCem is the PurCem-era documentation of the slurry role now named Sika Ucrete HS22 NA, the base product of this system. A legacy spec calling for that slurry in a heavy broadcast build routes here. Verify the role match against the November 2025 Ucrete SLB+ system data sheet before substituting.
Sika’s documented uses run food processing plants, wet and dry process areas, freezers and coolers, dairies, breweries, wineries, distilleries, laboratories, chemical process plants, pulp and paper plants, warehouses, and pharmaceutical facilities. The same sheet states the system meets USDA requirements for use in food plants and holds its physical characteristics from -40°F to 248°F.
Craftsman Concrete Floors installs the Sika Ucrete line as a Sika Certified Installer. In-house W-2 crews mobilize nationwide, with pre-install moisture and substrate verification per ASTM F2170 and ICRI 310.2 ahead of every pour, and project history since 1999 across the dairy, brewery, cold storage, and food processing verticals this system targets.
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