Product Data Sheet Show all documents

Sika® Ucrete® MF

(former Ucrete® MF)

4-6mm Heavy duty polyurethane floor finish

Sika® Ucrete® MF is a unique HD Polyurethane resin floor with exceptional resistance to aggressive chemicals. It provides a smooth protective floor finish suitable for applications in predominantly dry environments.
Sika® Ucrete® MF Industrial Flooring has been widely used throughout the industry for more than 50 years; many of the older floors are still in service. A detailed project reference list is available upon request.

AIR QUALITY: Sika® Ucrete® has been awarded the Indoor Air Comfort Gold Label following extensive VOC emission chamber testing and auditing of quality management and production control procedures. This demonstrates that Ucrete is an extremely clean product without any volatile compounds that might taint foodstuff or affect the well-being of personnel.
All Sika® Ucrete® grades give very low emissions and conform to all the emissions requirements for indoor flooring systems in Europe including AgBB in Germany, Afsset in France, where they are rated A+ for VOC emissions (the cleanest rating), and M1 in Finland. TEMPERATURE RESISTANCE: A Sika® Ucrete® MF floor is fully resistant to liquid spillage and discharge up to 60°C. Suitable for freezer temperatures
down to -18°C. NON TAINTING: Sika® Ucrete® MF is non-solvented and non tainting from the end of mixing, as tested by the Campden Technology Ltd. CHEMICAL RESISTANCE: Sika® Ucrete® MF offers exceptional resistance to a wide range of chemical aggressors. Note: some staining or discolouration may occur with some chemicals, depending upon the nature of the spillage and the standards of housekeeping employed. Extensive chemical resistance tables are available in the separate data sheet ‘A guide to the chemical resistance of Ucrete Flooring’. IMPACT RESISTANCE: With high mechanical strengths and a low elastic modulus, Sika® Ucrete® MF is very resilient and able to withstand severe
impact loads. While no material is indestructible and surface chipping may occur, brittle modes of failure resulting in cracking and disbondment are unknown with Sika® Ucrete® floors. PERMEABILITY Sika® Ucrete® MF exhibits zero absorption when tested to CP.BM2/67/2. SLIP RESISTANCE
Sika® Ucrete® MF floors have coefficient of friction as determined to EN13036 Part 4 with 4S rubber on the wet floor as follows:
Ucrete MF 35 Sika® Ucrete® MF surface profiles conform to DIN51130 as follows: Ucrete MF R10 V -
Optimum slip resistance can only be maintained with regular cleaning.
Product Data Sheet Show all documents

Usage

It is dense and impervious, providing the ideal floor finish for applications in the food, pharmaceutical and manufacturing industries including clean room, laboratory, packing hall and warehouse applications and wherever a robust, long lived floor is required.

Advantages

AIR QUALITY: Sika® Ucrete® has been awarded the Indoor Air Comfort Gold Label following extensive VOC emission chamber testing and auditing of quality management and production control procedures. This demonstrates that Ucrete is an extremely clean product without any volatile compounds that might taint foodstuff or affect the well-being of personnel.
All Sika® Ucrete® grades give very low emissions and conform to all the emissions requirements for indoor flooring systems in Europe including AgBB in Germany, Afsset in France, where they are rated A+ for VOC emissions (the cleanest rating), and M1 in Finland. TEMPERATURE RESISTANCE: A Sika® Ucrete® MF floor is fully resistant to liquid spillage and discharge up to 60°C. Suitable for freezer temperatures
down to -18°C. NON TAINTING: Sika® Ucrete® MF is non-solvented and non tainting from the end of mixing, as tested by the Campden Technology Ltd. CHEMICAL RESISTANCE: Sika® Ucrete® MF offers exceptional resistance to a wide range of chemical aggressors. Note: some staining or discolouration may occur with some chemicals, depending upon the nature of the spillage and the standards of housekeeping employed. Extensive chemical resistance tables are available in the separate data sheet ‘A guide to the chemical resistance of Ucrete Flooring’. IMPACT RESISTANCE: With high mechanical strengths and a low elastic modulus, Sika® Ucrete® MF is very resilient and able to withstand severe
impact loads. While no material is indestructible and surface chipping may occur, brittle modes of failure resulting in cracking and disbondment are unknown with Sika® Ucrete® floors. PERMEABILITY Sika® Ucrete® MF exhibits zero absorption when tested to CP.BM2/67/2. SLIP RESISTANCE
Sika® Ucrete® MF floors have coefficient of friction as determined to EN13036 Part 4 with 4S rubber on the wet floor as follows:
Ucrete MF 35 Sika® Ucrete® MF surface profiles conform to DIN51130 as follows: Ucrete MF R10 V -
Optimum slip resistance can only be maintained with regular cleaning.

Packaging

Part A

2.52 kg/pail

Part B

2.86 kg/p[ail

Part C

14.4 kg/bag

Part D0.50 kg/bag
Part A+B+C+D20.28 kg/set

Colour

Sika® Ucrete® MF is available in eight standard colours:
Red, Yellow, Green, Orange, Grey, Cream, Blue and Green/Brown.

Note: Sika® Ucrete® floor systems have been formulated to provide the very highest chemical and heat resistance. As a direct result, some yellowing of the installed floor will occur in areas of direct UV exposure. This is most apparent in lighter colours.

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

GB/T 22374-2018
Product Information

Chemical Base

Waterborne polyurethane mortar

Shelf Life

9 months

Storage Conditions

In covered warehouse conditions, above 5°C and below 30°C and out of direct sunlight. Materials must be raised off the floor and kept dry. Liquid components must be protected from frost.

Density

Mixture: ~1.97 kg/LBS 6319 Part5

Volatile organic compound (VOC) content

≤ 50g/L
Technical Information

Abrasion Resistance

≤ 0.15g

Resistance to Impact

Heavy duty

Compressive Strength

48-53MPaEN13892-2

Flexural Strength

18-21 MPaEN13892-2

Flexural E-Modulus

3250-4000 MPa

BS 6319 Part6

Tensile resistance

~9 MPa

BS 6319 Part7

Tensile adhesion strength

≥ 2MPa (concrete failure)

Coefficient of Thermal Expansion

3.6*10-5°C-1ASTM C531 Part4.05

 

Chemical Resistance

Extensive chemical resistance tables are available in the separate data sheet ‘A guide to the chemical resistance of Ucrete Flooring’.

Resistance to fire

BFL – S1EN13501 Part 1

Application

Application Information

Mixing Ratio

Parts A:B:C:D= Mix full units only.

Product Temperature

+5 °C min./+30°C max.
Optimal application temperatures range : 15°C - 25°C

Ambient Air Temperature

+5 °C min./+30°C max.
Optimal application temperatures range : 15°C - 25°C

Relative Air Humidity

80% r.h. max.

Dew Point

Beware of condensation!
The substrate and uncured floor must be at least 3°C above the dew point to reduce the risk of condensation or blooming on the floor finish.

Substrate Temperature

+10°C min. / +30°C max.

Substrate Moisture Content

< 8% pbw moisture content.
Test method: Sika®-Tramex meter or CM - measurement.
No rising moisture according to ASTM (Polyethylene-sheet).

Pot Life

TemperatureTime
+20 °C~25 minutes

Waiting Time / Overcoating

Before applying Sika® Ucrete® MF on  Sika® Ucrete® MF/-PLC, allow:

Substrate temperatureMinimumMaximum
+10°C~36 hours~12 days
+20°C~24 hours~7 days
+30°C~12 hours~4 days

Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Applied Product Ready for Use

Temperature/ThicknessFoot trafficLight trafficFull cure
+20°C / 4mm10~12 hours14~16 hours5 days

Note:At low temperature the curing need longer time.
Consumption

Consumption

Coating SystemProductConsumption
Primer (~1mm)Sika® Ucrete® PLC/-MF~2.0 kg/m2
Topcoat (3-5mm)Sika® Ucrete® MF6.0~10 kg/m2

Note:These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and
wastage etc.
Application steps

EQUIPMENT

Sika® Ucrete® MF must be thoroughly mixed using a low speed electric stirrer (400 -600rpm) or other suitable equipment.

MIXING

  • The temperature will affect the mixing effect; the temperature of the material itself before use is 15°C-25°C; if the construction is in low temperature in winter, it is recommended to store the material in an indoor air-conditioned room at 15°C-25°C for at least 24h before use.
  • Prepare a large mixing container in advance and start the mixer:

  • First pour Part D (color paste) into Part A and stir for 15 seconds, then add Part B and stir for 20 seconds. Then slowly pour Part C (powder) in while stirring, the adding process takes about 15 seconds. Note that it should not be poured into the mixer quickly. After adding Part C and Part D, stir further for more than 2 minutes to ensure that all powders and base materials are completely mixed.

  • The mixing time should be consistent for each group of materials.
  • During mixing, it is also necessary to use a straight-sided trowel to scrape off the ingredients (Parts A+B+C+D) that are stained on the sides and bottom of the container, and this should be done at least once to ensure complete mixing. It is only necessary to mix all the ingredients in the factory package.

APPLICATION

  • Prior to application, confirm the water content, relative humidity and dew point of the substrate.

  • Primer: Mix and apply Sika® Ucrete® MF/-PLC material on the floor and apply it with a trowel or squeegee to the required thickness.

  • Check that the primer is completely sealed and that it is fully sealed and cured before applying the top coat.

  • Topcoat: Mix and apply Sika® Ucrete® MF material to the floor; apply to the desired thickness with a defoaming roller, trowel or squeegee according to the instructions. Before the surface begins to cure, carefully scrape the newly mixed material along the transition zone of the previously applied material. Immediately thereafter, defoam the material by rolling the defoamer roller in a cross direction to remove any air from the material.

A large area must be adequately staffed; the entire construction process must be compact and the material must be quickly bridged between two shipments of material to ensure a wet joint, otherwise lap marks and color differences may occur.

CLEANING OF TOOLS

Clean all tools and application equipment with Thinner C immediately after use. Hardened / cured material can only be mechanically removed.

CLEANING

Regular cleaning and maintenance will enhance the life and appearance of any floor. Sika® Ucrete® MF is cleaned using industry standard cleaning chemicals and equipment. The use of a food industry standard scrubber drier machine is recommended. Please consult your local cleaning chemical or equipment supplier.

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