- Brand Status: Legacy/transitional US naming — the systems-level PurCem page on usa.sika.com now routes to the Sika Ucrete family page; individual PurCem product documents remain published
- Current US Equivalents:
- – Sikafloor-22 NA PurCem (self-leveling slurry role) maps to Sika Ucrete HS22 NA
- – Sikafloor-24 NA PurCem (water-dispersed screed role) maps to Sika Ucrete HS24 NA
- – BASF and MBCC Ucrete specifications carry into Sika Ucrete (Sika closed the MBCC acquisition May 2, 2023)
- System Roles Today:
- – Self-leveling slurry: Sika Ucrete HS22 NA, basis of the Ucrete SL+ system
- – Water-dispersed screed, smooth or textured: Sika Ucrete HS24 NA, the self-leveling slurry behind the Ucrete SL system
- – Vertical and cove grade: Sika Ucrete RG29 NA
- – Topcoat: Sika Ucrete TC31 NA (formerly Ucrete DP TC)
- Reference Build: Sika Ucrete HS22 NA installs at 3/16″ to 1/4″ (188 to 250 mils) typical, broadcast with quartz sand and sealed with Sika Ucrete TC31 NA, per the March 2026 Product Data Sheet
- Chemical-Resistance Data: Lives in the current Ucrete product documentation — each PDS references its own chemical resistance chart; systems are matched to exposure profiles at spec review
- Installer: Sika installer + Authorized Sherwin-Williams High Performance Flooring installer — in-house W-2 crews mobilize nationwide
Phone: +1 (844) 687-1961
Sikafloor PurCem is the legacy Sika brand for polyurethane cement flooring in the US market, the name a spec carries when it reads Sikafloor-22 NA PurCem or Sikafloor-24 NA PurCem. Sika Ucrete is the current US family. Every 2025- and 2026-dated system document on usa.sika.com builds on Ucrete-named products, and each PurCem SKU maps to one current equivalent: Sikafloor-22 NA PurCem installs today as Sika Ucrete HS22 NA, and Sikafloor-24 NA PurCem installs as Sika Ucrete HS24 NA — the self-leveling slurry and the water-dispersed screed, respectively. The change is a renaming within one polyurethane cement family, not a retirement of the line.
A floor specified under the Sika PurCem flooring name is urethane cement: a cementitious mortar with a urethane resin matrix that bonds chemically to concrete and moves with the slab through thermal cycling. The chemistry holds through hot CIP washdown beside refrigerated zones, under lactic and acetic acid attack, and under caustic sanitation cycles, because the mortar’s thermal expansion coefficient tracks concrete’s and the current Ucrete screeds document service to 248°F. That spec is still serviceable. Craftsman Concrete Floors reads legacy PurCem specs and installs the current Ucrete systems against them nationwide as a Sika installer.
Sikafloor PurCem to Sika Ucrete: The Per-SKU Mapping
Most readers of this page arrive holding a document. A construction spec issued five years ago reads Sikafloor-22 NA PurCem. In a closeout binder, it is the floor poured in the last expansion. A chemical-resistance request references a PurCem chart that no longer downloads from where it used to. Every version of that reader needs the same two facts, the product’s current name and an installer who reads the old one, and everything below traces to Sika documents current as of June 2026.
Sikafloor PurCem Is Transitional Naming, Not a Retired Line
Sika has not pulled PurCem from the US market; it has demoted the name. The chemistry never changed. The systems-level PurCem URL on usa.sika.com now lands on the Sika Ucrete page, while individual PurCem product documents stay published in the polyurethane cement product catalog. Read that pattern the way Sika presents it: Ucrete is the family going forward, and PurCem is the name your older paperwork carries.
Sikafloor-22 NA PurCem — Now Sika Ucrete HS22 NA
The self-leveling slurry role transferred intact. Sikafloor-22 NA PurCem was the workhorse slurry behind Sika’s self-leveling US systems; Sika Ucrete HS22 NA holds that position now, and the November 2025 Ucrete SL+ system sheet describes a self-leveling polyurethane cementitious slurry engineered with Sika Ucrete HS22 NA at 160 to 250 mils. The product’s own data sheet, dated March 2026, puts typical stand-alone installation at 3/16 inch to 1/4 inch, broadcast with quartz sand and sealed with Sika Ucrete TC31 NA for a solid color finish.
Sikafloor-24 NA PurCem — Now Sika Ucrete HS24 NA
Sikafloor-24 NA PurCem held the screed role in the PurCem range: a water-dispersed polyurethane cement and aggregate screed for areas that need more texture or build than a neat slurry gives. Its current equivalent is Sika Ucrete HS24 NA. Sika’s current Ucrete systems page describes the HS24 NA screed in nearly the same words the legacy literature used, and the systems built on it install either as a smooth self-leveling floor topping with an easy-to-clean surface or as a textured, slip-resistant screed under a urethane top coat. A spec naming the 24 NA screed lands on those HS24 NA systems.
Current Architecture — Products Underneath, Systems on Top
Current Sika documentation separates products from the systems engineered with them. The products are Sika Ucrete HS22 NA, HS24 NA, RG29 NA for vertical and cove work, TC31 NA as the standard topcoat, TCCS, and UD 200 with its UD 200 SR slip-resistant variant. The systems built on them carry the names a spec writer sees: Ucrete SL, SL+, MF, UD 200, IF, RG, DP, and TZ. Match the product first, then the system. A PurCem SKU in an old spec identifies the product layer; the system sheet then sets thickness, broadcast, and topcoat for the build.
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Installing Against a Sikafloor PurCem Spec
Identity confirmed, the work becomes ordinary: verify the substrate, map the spec to the current system, install, and document. Craftsman runs PurCem-spec’d projects the way it runs any current Sika Ucrete installation — phased installation around live operations where the facility cannot shut down, with substrate testing done to named standards and a closeout package the spec engineer can file against the original document.
The Substitution Is Documented Before Bid, Not During Submittals
Specs written around Sikafloor-22 NA PurCem are built with the corresponding Ucrete-named system, and the mapping gets confirmed in writing while the job is still being priced. Craftsman maps the legacy SKU to its current equivalent at pre-bid spec review and verifies the build-up against the current system data sheet. The substitution then goes into the spec record with the current document attached. Same manufacturer, same chemistry lineage. The engineer of record signs off on a name change, not a product change.
Sika PurCem Chemical Resistance Chart — Where the Data Lives Now
Searches for a Sika PurCem chemical resistance chart now resolve to the current Ucrete product documentation: each product’s data sheet references its own chemical resistance chart, and that chart is the authoritative version. The legacy chart is not wrong; it is superseded. Resistance ratings shift with concentration and temperature, and dwell time moves the answer again, which is why a binder calling for the Sikafloor-24 NA PurCem chemical resistance sheet gets answered with the current Ucrete HS24 NA documents rather than a cached PDF. Craftsman matches systems to the facility’s actual exposure profile during spec review instead of reading a chart in isolation.
Repairing an Existing PurCem Floor Means Matching, Then Bonding
An existing PurCem floor gets repaired or extended with its current Ucrete equivalent, and the joint between old and new work is an adhesion question before it is a naming question. The naming is the easy part. Craftsman verifies substrate moisture per ASTM F2170 and confirms surface profile to ICRI 310.2 before new material goes down. New mortar then keys into the existing monolithic slab so the patch carries the same thermal cycling the original floor does. Color match against a floor that has run years of CIP chemistry gets scoped honestly at the walkthrough.
Sikafloor PurCem Installation — Phased Around Live Production
Sikafloor PurCem installation today means installing the current Ucrete equivalent against the legacy spec, and the field methodology is unchanged urethane cement flooring work. In-house W-2 crews mobilize nationwide. Phased installation runs zone by zone around active production, with 24-hour cure-and-return-to-service on self-leveling systems and longer cure windows for trowel-applied builds. The closeout package carries ASTM F2170 moisture logs, ICRI 310.2 surface profile records, material batch documentation, and manufacturer warranty registration — the records a Sika installer files so the warranty survives an audit.
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Sikafloor PurCem is a current, supported Sika line. It is the earlier North American name for the urethane cement family Sika now also sells under the Ucrete brand. The confusion traces to Sika’s May 2, 2023 acquisition of the MBCC Group, which brought Ucrete into the portfolio alongside the existing Sikafloor PurCem products. Nothing was discontinued in that transition. Product codes carried through, and specs written to PurCem install as current systems. Active construction documents legitimately carry both names, sometimes on the same project, and warranty obligations from pre-acquisition specifications carried forward to Sika. Craftsman Concrete Floors, a Sika installer for both families, maps PurCem callouts to the current catalog during pre-bid review so submittals move without stalls.
In North America they are the same class of floor under two brand histories, and today both sit in one Sika urethane cement portfolio. PurCem grew up inside Sika. Ucrete arrived through the MBCC acquisition, descending from the original Master Builders line, later BASF Ucrete, then MBCC, joining Sika on May 2, 2023. System-level differences are grade-by-grade matters of thickness, texture, and finish. There is no fundamental split between the families. A specifier can hold either name; what matters is matching the grade to the service conditions. Craftsman Concrete Floors installs both and specifies across the combined catalog to the floor’s actual exposure.
Sikafloor PurCem serves the classic urethane cement missions: food and beverage processing, commercial kitchens, cold storage, chemical exposure, and thermal-shock environments where epoxy fails. The line spans self-leveling smooth grades through heavy textured mortars, matched to wet or dry service. Like all cementitious urethanes it tolerates elevated slab moisture, installs over green or damp concrete within data-sheet limits, and moves thermally with the slab. Integral cove base and slope-to-drain detailing complete the hygienic envelope wet processing requires. Chemical resistance covers the organic acids, fats, caustics, and sanitizers of food-plant service. Craftsman Concrete Floors installs PurCem systems nationwide with the prep, drainage, and phasing operating plants demand.
Grade callouts like Sikafloor PurCem HS-22 or HS-24NA map directly to current Sika systems. The acquisition changed branding, not product codes, so the specified grade installs as written or with a documented current equivalent. Sika’s North American catalog carries the urethane cement grades under harmonized naming, and where a legacy code was superseded, Sika technical service issues the mapping letter submittal reviewers expect. Self-leveling slurries, broadcast systems, and heavy mortars each have current counterparts across the combined Ucrete/PurCem range. The practical step is a pre-bid product verification so the submittal carries current data sheets against the legacy callout. Craftsman Concrete Floors runs that verification on every legacy-spec project and assembles the substitution documentation when a mapping letter is needed.
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