Product Data Sheet Show all documents

Sika® Ucrete® WR

(formerly Ucrete® WR)

HIGH STRENGTH POLYURETHANE CEMENTITIOUS COVING MORTAR ENGINEERED WITH SIKA® UCRETE® RG29 NA CAN BE INSTALLED TO ANY HEIGHT FROM 1/8" - 1/4" (125 - 250 MILS) THICKNESS

Sika® Ucrete® WR is a vertical grade, solid color, water dispersed polyurethane cement and aggregate mortar used for detailing, vertical and coving. It has a finely textured smooth aggregate appearance that provides excellent resistance to abrasion, impact, chemical attack and other physical aggression. System can be installed to any hight from 1/8'' - 1/4'' (125 - 250 mils) thickness.

  • Can be applied on green concrete, typically 7-10 days. Full 28 days cure time is not necessary.
  • Can be applied over partially cured concrete substrates (> 4% mass (pbw –part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter surface moisture).
  • Can be applied to concrete substrates where <100 % relative humidity is measured as per ASTM F2170.
  • Substrate has tensile bond strength in excess of 218 psi (1.5 MPa). Substrate has tensile bond strength in excess of 218 psi (1.5 MPa).
  • Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details.
  • Similar coefficient of thermal expansion to concrete allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40 °F (-40 °C) up to 248 °F (120 °C).
  • Steam cleanable at 1/8'' to 1/4'' (125 to 250 mils) thickness.
  • Non-tainting, odorless
  • Behaves plastically under impact / deforms but will not crack or debond.
  • High abrasion qualities result from its aggregate structure.
  • Maintain and extend existing expansion joints up through the Sika® Ucrete® Flooring System.
  • Minimal maintenance costs, superior life cycle cost advantage versus tile.
  • Meets the requirements of USDA for use in food plants.
 
Product Data Sheet Show all documents

Usage

Sika® Ucrete® WR may only be used by experienced professionals.
  •  Sika® Ucrete® WR is primarily used for vertical application of cove on concrete substrates.
  •  Typically used in food processing plants, wet and dry process areas, freezers and coolers, dairies, breweries, wineries, distilleries, laboratories, chemical process plants, pulp and paper plants, warehouses and storage areas.
 

Advantages

  • Can be applied on green concrete, typically 7-10 days. Full 28 days cure time is not necessary.
  • Can be applied over partially cured concrete substrates (> 4% mass (pbw –part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter surface moisture).
  • Can be applied to concrete substrates where <100 % relative humidity is measured as per ASTM F2170.
  • Substrate has tensile bond strength in excess of 218 psi (1.5 MPa). Substrate has tensile bond strength in excess of 218 psi (1.5 MPa).
  • Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details.
  • Similar coefficient of thermal expansion to concrete allowing movement with the substrate through normal thermal cycling. It will perform and retain its physical characteristics through a wide temperature range from -40 °F (-40 °C) up to 248 °F (120 °C).
  • Steam cleanable at 1/8'' to 1/4'' (125 to 250 mils) thickness.
  • Non-tainting, odorless
  • Behaves plastically under impact / deforms but will not crack or debond.
  • High abrasion qualities result from its aggregate structure.
  • Maintain and extend existing expansion joints up through the Sika® Ucrete® Flooring System.
  • Minimal maintenance costs, superior life cycle cost advantage versus tile.
  • Meets the requirements of USDA for use in food plants.
 

Packaging

Please refer to the individual Product Data Sheets

Color

Available in standard Sika® Ucrete® colors

Product Details

Product Information

Shelf Life

Please refer to the individual Product Data Sheets

Storage Conditions

Please refer to the individual Product Data Sheets

Thickness

1/8" to 1/4" (125 - 250 mils)
System information

System Structure

Sika® Ucrete® WR System at 1/8" - 1/4" (125 - 250 mils)

 

Description

Products

Thickness mils

Primer

Sika® Ucrete® TC31 NA

8 - 10

Mortar

Sika® Ucrete® RG29 NA

125 - 250 with 1" radius

Top Coat

Sika® Ucrete® TC31 NA

8 - 10

 

Options

Description

Products

Thickness mils

Primer

Sikafloor®-161

8 - 10

Please consult with Sika representative for additional options
Technical Information

Shore D Hardness

80 - 85

ASTM D2240

at 73 °F (23 °C) and 50% R.H

Abrasion Resistance

CS-17/1,000 cycles/1,000 g - 0.09 g loss

H-22/1,000 cycles/1,000 g - 4.01 g loss

ASTM D4060

at 73 °F (23 °C) and 50% R.H

Impact Strength

6.70 ft-lb (9.08 joules)

at 1/8" (3 mm) of thickness

ASTM D2794

at 73 °F (23 °C) and 50% R.H

Compressive Strength

2,901 psi (20 MPa)

ASTM C579

at 73 °F (23 °C) and 50% R.H

Flexural Strength

1,175 psi (8.1 MPa)

ASTM C580 

at 73 °F (23 °C) and 50% R. H

Tensile Strength

363 psi (2.5 MPa)

C307

at 73 °F (23 °C) and 50% R.H

Tensile Adhesion Strength

>400 psi (2.5 MPa)

ASTM D7234

at 73 °F (23 °C) and 50% R.H

Coefficient of Thermal Expansion

0.72 x 105 in/in/°F (1.3 x 105 mm/mm/°C)

ASTM D696

at 73 °F (23 °C) and 50% R.H

Microbiological Resistance

Resistance to Fungi Growth Rated 0

(no growth)

ASTM G21

at 73 °F (23 °C) and 50% R.H

Resistance to Mold Growth Rated 10

(highest resistance)

ASTM D3273

at 73 °F (23 °C) and 50% R.H

Thermal Conductivity

Pass

ASTM C884

at 73 °F (23 °C) and 50% R.H

Water Absorption

0.16%

ASTM C413

at 73 °F (23 °C) and 50% R.H

Application

Application Information

Ambient Air Temperature

Minimum/Maximum 40°/85°F (4°/30°C)

Substrate Temperature

Minimum/Maximum 40°/85°F (4°/30°C)

Pot Life

Please refer to the individual Product Data Sheets

Waiting / Recoat Times

Please refer to the individual Product Data Sheets
Consumption

Coverage

Description

Products

Approximate Lin.Ft./kit

Primer

Sika® Ucrete TC31 NA

1,344 @ 8 mils

Mortar

Sika® Ucrete RG29 NA

30 @ 1/8" & 1" radius

Top Coat

Sika® Ucrete TC31 NA

1,260 @ 1/8" 1" radius

Optional PrimerSikafloor®-1612,700 @ 8 mils
Application steps

SUBSTRATE PREPARATION

Surface should be clean and sound. Remove all dust, dirt, existing paint films, efflorescence, exudates, laitance, forms oils, hydraulic or fuel oils, brake fluid, grease, fungus, mildew, biological residues or any other contaminants which may prohibit good bond. Prepare the surface by any appropriate mechanical means, in order to achieve a profile equivalent to ICRI-CSP 3-6. The compressive strength of the concrete substrate should be at least 3,625 psi (25 MPa) and a minimum of 218 psi (1.5 MPa) in tension at the time of application.

 

Repairs to cementitious substrates, filling of blowholes,leveling of irregularities, etc. should be carried out using an appropriate Sika profiling mortar. Contact Sika Technical Service for a recommendation.

 

Edge Terminations

All free edges of a Sika® Ucrete® floor, whether at the perimeter, along gutters or at drains require extra anchorage to distribute mechanical and thermal stresses. This is best achieved by forming or cutting grooves in the concrete. Grooves should have a depth and width of 2 times the thickness of the Sika® Ucrete® floor. Contact Sikafloor Technical Service for more information and construction details.

 

If necessary, protect all free edges with mechanically attached metal strips. Do not featheredge, always turn into an anchor groove.

 

Expansion Joints

Expansion joints should be provided in the substrates at the intersection of dissimilar materials. Isolate areas subject to thermal stresses, vibration movements or around load-bearing columns and at vessel sealing rings. Refer to details at https://usa.sika.com/flooring.

 

Priming

Please refer to the individual Product Data Sheet for each component.

 

MIXING

Please refer to the individual Product Data Sheet for each component.

APPLICATION

Please refer to the individual Product Data Sheet for each component.

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