Sika® Ucrete® MF
(former Ucrete® MF)
Smooth, heavy-duty, polyurethane floor screed
Sika® Ucrete® MF is a smooth, polyurethane, heavy-duty floor screed. It has very good resistance to aggressive chemicals, heavy abrasion and thermal shock.
- Expert installation by fully trained and licensed applicators
- Resistant to bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Very good resistance to a wide range of chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
Usage
Sika® Ucrete® MF is used as a wearing layer screed for Sika® Ucrete® flooring systems. Sika® Ucrete® MF is used within dry process areas including the following application areas:- Chemical and processing facilities
- Clean rooms
- Dry packing lines
- Storage areas
- Warehouses
- The Product may only be used by experienced professionals.
Advantages
- Expert installation by fully trained and licensed applicators
- Resistant to bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Very good resistance to a wide range of chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
Packaging
| Part 1 | 2.52 kg |
| Part 2 | 2.86 kg |
| Part 3 | 14.4 kg |
| Part 4 | 0.5 kg |
| Set | 20.28 kg |
Colour
| Cured colour | Red, Yellow, Cream, Grey, Light Grey, Green, Light Green, Blue |
Product Details
APPROVALS / STANDARDS
Food and Beverage Facilities Suitability, Sika® Ucrete®, HACCP, Test Report No. I-PE-769-SA-2-RG-06b
Halal Certification Europe (HCE), Sika® Ucrete®, WHFC, Certificate No. 21453-2/1/1/Y1
Indoor Air Comfort Gold EN 16516, Sika® Ucrete®, eurofins, Certificate No. IACG-321-01-01-2023
Composition
Water-based polyurethane cement hybrid
Shelf Life
Always refer to the best-before date of the individual packaging.
Storage Conditions
The Product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to the packaging.
Refer to the current Safety Data Sheet for information on safe handling and storage.
Density
Mixed Product | ~1.97 kg/l |
System Structure
| Layer | Product | |
| 1. | Primer | Sika® Ucrete® MF / PLC |
| 2. | Wearing layer | Sika® Ucrete® MF |
Compressive Strength
Cured 28 days at +23 °C | 50 N/mm² |
Modulus of Elasticity in Compression
4000 MPa | (BS 6319-6) |
Tensile Strength in Flexure
Cured 28 days at +23 °C | 20 N/mm² |
Tensile Strength
Cured for 28 days at +20 °C | 9 MPa |
Tensile Adhesion Strength
> 2.0 N/mm² (concrete failure) | (EN 1542) |
Coefficient of Thermal Expansion
3.6 × 10-5 °C-1 | (ASTM C531) |
Skid / Slip Resistance
PTV, slider 96 | 35 wet conditions |
Class | R 10 |
Service Temperature
Maximum | +70 °C |
Minimum | -15 °C |
Chemical Resistance
Laboratory-defined resistance to many individual chemicals. Before proceeding, contact Sika Technical Service for specific information.
Reaction to Fire
Class Bfl-s1 | (EN 13501-1) |
Application
Layer Thickness
~4–6 mm
Product Temperature
Maximum | +25 °C |
Minimum | +18 °C |
Ambient Air Temperature
Maximum | +35 °C |
Minimum | +12 °C |
Substrate Temperature
Maximum | +30 °C |
Minimum | +12 °C |
Curing Time
Substrate temperature | Return to traffic |
+8 °C | < 24 hours |
+15 °C | 4 hours (with Sika® Ucrete® Accelerator) |
Note: Times are approximate and will be affected by changing ambient and substrate conditions.
Consumption
| Layer | Product | Consumption |
| Primer | Sika® Ucrete® MF / PLC | 2 kg/m² |
| Wearing layer | Sika® Ucrete® MF | 6–10 kg/m² for 3–5 mm |
SUBSTRATE PREPARATION
IMPORTANT
Reduced service life due to incorrect treatment of cracks
The incorrect assessment and treatment of cracks may lead to a reduced service life and reflective cracking.
- For static cracks, ensure the width is suitable for overcoating with Sika® Ucrete® MF.
- For dynamic cracks, ensure the movement is within the movement capacity of Sika® Ucrete® MF.
TREATMENT OF JOINTS AND CRACKS
Construction joints and existing static surface cracks in substrate require pre-treating before full layer application. Use Sikadur® or Sikafloor® resins.
The System can be applied on green or damp concrete with no standing water. Allow for at least 3 days for early concrete shrinkage to occur to prevent shrinkage cracks from appearing on the wearing surface.
Cementitious substrates must be structurally sound and of sufficient compressive strength (minimum 30 N/mm²) with a minimum tensile strength of 1.5 N/mm².
Substrates must be clean, dry and free of contaminants such as dirt, oil, grease, coatings, laitance, surface treatments and loose friable material.
APPLICATION
Application must be undertaken by a fully trained and licensed Sika® Ucrete® applicator.