Product Data Sheet Safety Data Sheet Show all documents
Sika® Ucrete® UD 200 SR

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 302 °F.

  • Expert installation by fully trained applicators
  • Does not support bacterial or mold 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
Product Data Sheet Safety Data Sheet Show all documents

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
Please note:
  • The Product may only be used by experienced professionals.
 

Advantages

  • Expert installation by fully trained applicators
  • Does not support bacterial or mold 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 the current price list for available packaging variations.

Color

Cured color

Red, Orange, 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-321-026-01-2023

 
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 41 °F and 86 °F. Always refer to the packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.
Technical Information

Compressive Strength

Cured 28 days at 73.4 °F

7977 psi

Modulus of Elasticity in Compression

3250 MPa

(BS 6319-6)

Flexural Strength

Cured 28 days at 73.4 °F

2030 psi

Tensile Adhesion Strength

> 290 psi (concrete failure)

(EN 1542)

Coefficient of Thermal Expansion

4 × 10-5 °C-1

(ASTM C531)

Service Temperature

Thickness

Minimum

Maximum

Occasional spillage

1/4"

-13 °F

176 °F

-

3/8"

-40 °F

248 °F

-

1/2"

-40 °F

266 °F

302 °F

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

Application Information

Layer Thickness

~1/4 - 1/2"

Product Temperature

Maximum

86 °F

Minimum

50 °F

Ambient Air Temperature

Maximum

95 °F

Minimum

41 °F

Substrate Temperature

Maximum

86 °F

Minimum

41 °F

Cure Time

Substrate temperature

Return to traffic

46.4 °F

< 24 hours

50 °F

4 hours (with Sika® Ucrete® Accelerator)

Note: Times are approximate and will be affected by changing ambient and substrate conditions.
Consumption

Coverage

Layer

Product

Consumption

Wearing layer

Sika® Ucrete® UD 200 SR

21 - 22 ft2 for 1/4" 

15 - 16 ft2 for 3/8" 

10 - 11 ft2 for 1/2" 
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.

  1. For static cracks, ensure the width is suitable for overcoating with Sika® Ucrete® UD 200 SR.
  2. 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 4351 psi) with a minimum tensile strength of 217 psi.

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 Sika® Ucrete® applicator.

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