Sika® Ucrete® UD 100 AS
(former Ucrete® UD 100 AS)
Hygienic, antistatic, slip-resistant, heavy-duty polyurethane floor screed
Sika® Ucrete® UD 100 AS is a textured, antistatic, heavy-duty, resin floor with very good resistance to aggressive chemicals, impact and temperatures up to +120 °C. It is suitable for slip resistant applications in ESD and ECF environments.
- 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
- Electrostatically conductive
- 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
- Tolerant to substrates with high moisture content
Usage
Sika® Ucrete® UD 100 AS is used as a levelling layer screed for Sika® Ucrete® flooring systems. Sika® Ucrete® UD 100 AS 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
- Defence estates
- Electronic facilities and data centres
- 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
- Electrostatically conductive
- 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
- Tolerant to substrates with high moisture content
Packaging
31.08 kg
Refer to the current price list for available packaging variations.
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-321-01-01-2023
Chemical Base
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.
System Structure
| Layer | Product | |
| 1. | Primer | Sika® Ucrete® PSC |
| 2. | Earthing connection | Copper tape |
| 3. | Wearing layer | Sika® Ucrete® UD 100 AS |
Compressive Strength
Cured 28 days at +23 °C | 55 N/mm² |
Modulus of Elasticity in Compression
3250 MPa | (BS 6319-6) |
Flexural Strength
Cured 28 days at +23 °C | 14 N/mm² |
Tensile Strength
Cured for 28 days at +20 °C | 7 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
Class | R 11 |
Electrostatic Behaviour
Resistance to ground | RG< 1 × 106 Ω |
Resistance to ground | RG< 1 × 106 Ω |
Body voltage generation | < 100 V |
Resistance of person to earth | < 35 MΩ |
Note: Measurement results can be affected by ESD clothing, ambient conditions, measurement equipment, cleanliness of the floor and the test personnel.
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
Product Temperature
Maximum | +25 °C |
Minimum | +15 °C |
Ambient Air Temperature
Maximum | +30 °C |
Minimum | +12 °C |
Dew Point
Beware of condensation. The substrate and uncured applied product must be at least +3 °C above the dew point to reduce the risk of condensation or blooming on the surface of the applied product. Low temperatures and high humidity conditions increase the probability of blooming.
Substrate Temperature
Maximum | +30 °C |
Minimum | +12 °C |
Curing Time
The floor can be returned to service after 24 hours.
Note: Times are approximate and will be affected by changing ambient and substrate conditions.
Waiting Time / Overcoating
Note: Times are approximate and will be affected by changing ambient conditions, particularly temperature and relative humidity.
Consumption
Layer | Product | Consumption |
Primer | Sika® Ucrete® PSC | 0.2–0.4 kg/m2 |
Earthing connection | Copper tape | Maximum distance 10 m between strips |
Wearing layer | Sika® Ucrete® UD 100 AS | 19–22 kg/m2 for 9 mm |
Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply the Product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.
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 100 AS.
- For dynamic cracks, ensure the movement is within the movement capacity of Sika® Ucrete® UD 100 AS.
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 Product 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.