Sika® Ucrete® SL+
Sika® Ucrete® SL+ is a solid color, self-leveling, urethane slurry designed to provide excellent resistance to abrasion, impact, chemical attack and thermal shock. The system is typically installed @ 160 - 250 mils (4 - 6.3 mm).
- Can be applied on green concrete, typically 7 - 10 days. Full 28 days cure time is not necessary.
- Can be applied over partially cured concrete substrates (> 4% mass (pbw –part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter surface moisture).
- Can be applied to concrete substrates where <100% relative humidity is measured as per ASTM F2170.
- Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details.
- Similar coefficient of thermal expansion to concrete allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40 °F (-40 °C) up to 248 °F (120 °C).
- Steam cleanable at 3/16 to 1/4 inch (188 to 250 mils) thickness.
- Non-tainting, odorless.
- Behaves plastically under impact / deforms but will not crack or debond.
- High abrasion qualities result from its aggregate structure.
- Maintain and extend existing expansion joints up through the Sika® Ucrete® Flooring System.
- Minimal maintenance costs, superior life cycle cost advantage versus tile.
- Meets the requirements of USDA for use in food plants.
System Structure
Usage
Sika® Ucrete® SL+ may only be used by experienced professionals.- Sika® Ucrete® SL+ is primarily used to protect concrete substrates in aggressive environments.
- Typically used in 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 storage areas and pharmaceutical facilities.
- When used as a base coat or layer for a MVT system, the minimum thickness of the Sika® Ucrete® HS22 NA is 125 mils. This is the minimum thickness prior to the broadcast of any aggregate. NOTE: Sika® Ucrete® HS22 NA at 1/8/" will not level and will have surface imperfections.
Advantages
- Can be applied on green concrete, typically 7 - 10 days. Full 28 days cure time is not necessary.
- Can be applied over partially cured concrete substrates (> 4% mass (pbw –part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter surface moisture).
- Can be applied to concrete substrates where <100% relative humidity is measured as per ASTM F2170.
- Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details.
- Similar coefficient of thermal expansion to concrete allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40 °F (-40 °C) up to 248 °F (120 °C).
- Steam cleanable at 3/16 to 1/4 inch (188 to 250 mils) thickness.
- Non-tainting, odorless.
- Behaves plastically under impact / deforms but will not crack or debond.
- High abrasion qualities result from its aggregate structure.
- Maintain and extend existing expansion joints up through the Sika® Ucrete® Flooring System.
- Minimal maintenance costs, superior life cycle cost advantage versus tile.
- Meets the requirements of USDA for use in food plants.
Color
Available in standard Sika® Ucrete® colors
System Details
System Structure
Sika® Ucrete® SL+ ~160 - 250 mils (4 - 6.3 mm)
| Description | Products | Thickness mils |
| Slurry | Sika® Ucrete® HS22 NA | 160 - 250 |
Options
| Description | Products | Thickness mils |
| Primers | Sikafloor®-2570 WB
Sika® Ucrete® TC31 NA | 3 - 5
15 - 20 |
Nominal thickness
160 - 250 mils (4 - 6.3 mm)
Minimum thickness
160 mils (4 mm)
Shore D Hardness
| 80 - 85 | ASTM D2240 at 73 °F (23 °C) and 50% R.H |
Abrasion Resistance
| CS-17/1000 cycles/1000 g - 0.11 g loss H-22/1000 cycles/1000 g - 2.26 g loss | ASTM D4060 at 73 °F (23 °C) and 50% R.H |
Impact Strength
| 5.02 ft-lb (6.81 Joules) at 1/8" (3 mm) thickness | ASTM D2794 at 73 °F (23 °C) and 50% R.H |
Compressive Strength
| 5,657 psi (39 MPa) 28 days | ASTM C579 at 73 °F (23 °C) and 50% R.H |
Flexural Strength
| 2,790 psi (8.9 MPa) | ASTM C580 at 73 °F (23 °C) and 50% R.H |
Tensile Strength
| 944 psi (6.51 MPa) 28 days | ASTM C307 at 73 °F (23 °C) and 50% R.H |
Tensile Adhesion Strength
| >400 psi (>2.5 MPa) | ASTM D7234 at 73 °F (23 °C) and 50% R.H |
Microbiological Resistance
| Resistance to Fungi Growth Rated 0 (no growth) | ASTM G21 at 73 °F (23 °C) and 50% R.H |
| Resistance to Mold Growth Rated 10 (highest resistance) | ASTM D3273 at 73 °F (23 °C) and 50% R.H |
Thermal Conductivity
| Pass | ASTM C884 at 73 °F (23 °C) and 50% R.H |
Indentation
| ~ 0% | MIL-PRF-24613 at 73 °F (23 °C) and 50% R.H |
Water Absorption
| 0.10% | ASMT C413 at 73 °F (23 °C) and 50% R.H |
Application
Ambient Air Temperature
Minimum/Maximum 40°/85°F (4°/30°C)
Substrate Temperature
Minimum/Maximum 40°/85°F (4°/30°C)
Pot Life
Please refer to the individual Product Data Sheets
Waiting / Recoat Times
Please refer to the individual Product Data Sheets
Coverage
| Description | Products | Approximates Sq.Ft./kit |
| Slurry | Sika® Ucrete® HS22 NA | 31 @ 3/16" |
Options
| Description | Products | Approximates Sq.Ft./kit |
| Primers | Sikafloor®-2570 WB
Sika® Ucrete® TC31 NA | 2,667 @ 3 mils
224 @ 15 mils |
SUBSTRATE PREPARATION
Concrete surfaces must be clean and sound. Remove all dust, dirt, existing paint films, efflorescence, exudates, laitance, forms oils, hydraulic or fuel oils, brake fluid, grease, fungus, mildew, biological residues or any other contaminants which may prohibit good bonding.
Prepare the surface by any appropriate mechanical means, to achieve a profile equivalent to ICRI-CSP 3-6. The compressive strength of the concrete substrate should be at least 3,625 psi (25 MPa) at 28 days and a minimum of 218 psi (1.5 MPa) in tensile at the time of application.
Repairs to cementitious substrates, filling of blowholes, levelling of irregularities, etc. should be carried out using an appropriate Sika profiling mortar. Contact Sika Technical Service for a recommendation.
Edge Terminations
All free edges of a Sika® Ucrete® floor, whether at the perimeter, along gutters or at drains require extra anchorage to distribute mechanical and thermal stresses. This is best achieved by forming or cutting grooves in the concrete. Grooves should have a depth and width of 2 times thickness of the Sika® Ucrete® floor.
Refer to the edge details provided at http://usa.sika.com. If necessary, protect all free edges with mechanically attached metal strips. Do not featheredge, always turn into an anchor groove.
Expansion Joints
Expansion joints should be provided in the substrates at the intersection of dissimilar materials. Isolate areas subject to thermal stresses, vibration movements or around load-bearing columns and at vessel sealing rings. Refer to details provided at http://usa.sika.com.
Priming
Please refer to the individual Product Data Sheet for each component.
MIXING
Please refer to the individual Product Data Sheet for each component.
APPLICATION
Please refer to the individual Product Data Sheet for each component.