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

Product Data Sheet Show all documents

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

Please note:

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

Sustainability / Certifications / Approvals

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

Product Information

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 information

System Structure

Sika_Ucrete_100_AS

	Layer	Product
1.	Primer	Sika® Ucrete® PSC
2.	Earthing connection	Copper tape
3.	Wearing layer	Sika® Ucrete® UD 100 AS

Technical Information

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

R_G< 1 × 10⁶ Ω

Resistance to ground

R_G< 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 B_fl-s1

(EN 13501-1)

Application

Application Information

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.

Application steps

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.