Sika® Ucrete® UD 200 SR
(former Ucrete® UD 200 SR)
Hygienic, heavy-duty polyurethane floor screed with very good slip resistance
Sika® Ucrete® UD 200 SR is a heavy-duty resin floor with very good resistance to aggressive chemicals, heavy impact and temperatures up to +150 °C.
- Expert installation by fully trained and licensed applicators
- Does not support bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Can be accelerated with Sika® Ucrete® Accelerator for fast installation within a 12-hour window
- Very good resistance to specific chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
- Tolerant to substrates with high moisture content
Usage
Sika® Ucrete® UD 200 SR is used as a wearing layer screed for Sika® Ucrete® flooring systems. Sika® Ucrete® UD 200 SR is used within wet and dry process areas including the following application areas:- Food and beverage facilities
- Pharmaceutical facilities
- Chemical and processing facilities
- Manufacturing facilities and workshops
- The Product may only be used by experienced professionals.
Advantages
- Expert installation by fully trained and licensed applicators
- Does not support bacterial or mould growth
- Suitable for application on to 7-day-old concrete and 3-day-old polymer screed
- Can be accelerated with Sika® Ucrete® Accelerator for fast installation within a 12-hour window
- Very good resistance to specific chemicals
- Very good mechanical resistance
- Impermeable to liquids
- Non-tainting from the end of mixing
- Low VOC emissions
- Thermal expansion properties similar to concrete
- Tolerant to substrates with high moisture content
Packaging
Refer to Sika Technical Services for information.
Colour
Cured colour | Red, Orange, Yellow, Bright Yellow, Cream, Grey, Light Grey, Green, Light Green, Green/ Brown, Blue. |
Product Details
APPROVALS / STANDARDS
Halal Certification Europe (HCE), Sika® Ucrete®, WHFC, Certificate No. 21453-2/1/1/Y1
Food and Beverage Facilities Suitability, Sika® Ucrete®, HACCP, Test Report No. I-PE-769-SA-2-RG-06b
Indoor Air Comfort Gold EN 16516, Sika® Ucrete®, eurofins, Certificate No. IACG-321-026-01-2023
Chemical Base
Water-based polyurethane cement hybrid
Shelf Life
Refer to Sika Technical Services for information.
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.
System Structure
Sika® Ucrete® UD 200 SR
| Layer | Product |
| Primer | Sika® Ucrete® PSC |
| Wearing layer | Sika® Ucrete® UD 200 SR |
Compressive Strength
Cured 28 days at +23 °C | 55 N/mm² |
Modulus of Elasticity in Compression
3250 MPa | (EN 12447) |
Flexural Strength
Cured 28 days at +23 °C | 14 N/mm² |
Tensile adhesion strength
> 2.0 N/mm² (concrete failure) | (EN 1542) |
Coefficient of Thermal Expansion
4 × 10-5 °C-1 | (ASTM C531) |
Skid / Slip Resistance
Class | R 13; V 4 |
PTV, slider 96 | 50–60 wet conditions |
Service Temperature
Thickness | Minimum | Maximum | Occasional spillage |
6 mm | -25 °C | +80 °C | - |
9 mm | -40 °C | +120 °C | - |
12 mm | -40 °C | +130 °C | +150 °C |
Water permeability
Sika® Ucrete® UD 200 SR exhibits zero absorption when tested to CP.BM2/67/2.
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
~6–12 mm
Product Temperature
Maximum | +30 °C |
Minimum | +10 °C |
Ambient Air Temperature
Maximum | +35 °C |
Minimum | +5 °C |
Substrate Temperature
Maximum | +30 °C |
Minimum | +5 °C |
Curing Time
Substrate temperature | Return to traffic |
+8 °C | < 24 hours |
+10 °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® PSC | 0.2–0.4 kg/m2 |
Wearing layer | Sika® Ucrete® UD 200 SR | 13–16 kg/m2 for 6 mm 19–22 kg/m2 for 9 mm 24-26 kg/m2 for 12 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® UD 200 SR.
- For dynamic cracks, ensure the movement is within the movement capacity of Sika® Ucrete® UD 200 SR.
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.