Product Data Sheet Show all documents

Sika® Ucrete® HS22 NA

SELF-LEVELING BROADCAST CEMENTITIOUS URETHANE SLURRY

Sika® Ucrete® HS22 NA is a self-leveling, solid color, three component, cementitious urethane mortar designed to provide excellent resistance to abrasion, impact, and chemical attack. Sika® Ucrete® HS22 NA is broadcast with dried quartz sand and sealed with Sika® Ucrete® TC31 NA to produce a solid color finish. Can be broadcasted with colored quartz aggregate and sealed with Sikafloor resinous flooring products for a decorative finish. The system is typically installed at 3/16" to 1/4" (188 to 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.
  • Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details. Refer to the Sika® Ucrete® HS22 NA Chemical Resistance Chart.
  • 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 3/16" to 1/4" (188 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® HS22 NA is primarily used to protect concrete substrates in aggressive environments.
  • Food processing plants, wet and dry process areas, kitchen and oven areas, freezers and coolers, dairies, breweries, wineries, distilleries, laboratories, chemical process plants, pulp and paper plants, warehouses and storage areas, and pharmaceutical facilities.
  • When used as a base coat or layer for a MVT system, the minimum thickness of the Sika® Ucrete® HS22 NA is 125 mils. This is the minimum thickness prior to the broadcast of any aggregate. NOTE: Sika® Ucrete® HS22 NA at 1/8" will not level and will have surface imperfections.
 

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.
  • Resists a very wide range of organic and inorganic acids, alkalis, amines, salts and solvents. Consult Sika Technical Service for full details. Refer to the Sika® Ucrete® HS22 NA Chemical Resistance Chart.
  • 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 3/16" to 1/4" (188 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

Part 1:

1 US gallon pail (3.78 L) 8.53 lb

Part 2:

0.70 US gallon pail (2.64 L) 7.33 lb

Part 3:

43.96 lbs (19.94 kg) in a bag (powder)

Kits (1+2+3):59.83 lb (27.14 kg)

Color

RAL 7012 Basalt Gray

RAL 3009 Oxide Red

RAL 7038 Agate Gray

RAL 1001 Beige

RAL 7042 Traffic Grey

Product Details

Product Information

Shelf Life

12 months in original unopened packaging

Storage Conditions

Store dry between 50° - 77°F (10° - 25°C). Protect from freezing. If frozen, discard.

Density

16.84 lb/US gal. (2.02 kg/L)

ASTM C905

at 73 °F (23 °C) and 50% R.H
Technical Information

Shore D Hardness

80 - 85

ASTM D2240

at 73 °F (23 °C) and 50% R.H

Abrasion Resistance

~0.10 g (0.004 oz) loss CS-17/1,000 cycles/1,000 g

~0.227 g (~0.008 oz) loss H-22/1,000 cycles/1,000 g

at 73 °F (23 °C) and 50% R.H

Impact Strength

5.02 ft-lb (6.81 joules) at 1/8" (3 mm of thickness)

ASTM D2794

at 73 °F (23 °C) and 50% R.H

Compressive Strength

5,657 psi (39 MPa)

28 days

ASTM C579

at 73 °F (23 °C) and 50% R.H

Flexural Strength

2,790 psi (8.9 MPa)

ASTM C580

at 73 °F (23 °C) and 50% R.H

Tensile Strength

1,045 psi (6.5 MPa)

ASTM C307

at 73 °F (23 °C) and 50% R.H

Tensile Adhesion Strength

>400 psi (>2.5 MPa)

(substrate failure) Pull-off Strength

ASTM D7234

at 73 °F (23 °C) and 50% R.H

Coefficient of Thermal Expansion

0.89 x 105 in/in/°F (1.6 x 105 mm/mm/°C)

ASTM D696

at 73 °F (23 °C) and 50% R.H

Chemical Resistance

Please consult Sikafloor Technical Services

Microbiological Resistance

Resistance to Fungi Growth Rated 0

(no growth)

Resistance to Mold Growth Rated 10

(highest resistance)

ASTM G21

at 73 °F (23 °C) and 50% R.H

ASTM D3273

at 73 °F (23 °C) and 50% R.H

Skid / Slip Resistance

~0.77 wet (full broadcast Sikadur®-508, Sika® Ucrete® TC31 NA

ANSI A137.1 / ANSI A326.3

DCOF-BOT 3000e

Indentation

~0%

MIL-PRF-24613

at 73 °F (23 °C) and 50% R.H

Service Temperature

-40 °F (-40 °C) min./248 °F (120 °C) max.

Water Absorption

~0.45%

ASTM C413

at 73 °F (23 °C) and 50% R.H

Softening point

266 °F (130 °C)

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

Material Temperature

Time

+50 °F (10 °C)

~ 25 - 30 minutes

+68 °F (20 °C)

~ 15 - 20 minutes

+86 °F (30 °C)~ 5 - 10 minutes

Cure Time

Temperature

Foot Traffic

Light Traffic

Full Cure

+50 °F (10 °C)

~ 24 hours

~ 48 hours

~ 7 days

+68 °F (20 °C)

~ 18 hours

~ 24 hours

~ 5 days

+86 °F (30 °C)

~ 6 hours

~ 18 hours

~ 3 days

Waiting / Recoat Times

Before applying Sika® Ucrete® HS22 NA when a scratch primer with broadcast is used allow:

Substrate Temperature

Minimum

Maximum

+50 °F (10 °C)

12 hours

24 hours

+68 °F (20 °C)

3 hours

12 hours

+86 °F (30 °C)

2 hours

8 hours
Consumption

Coverage

Approx. 50 ft2 (4.6 m2) per unit at 1/8" (3.2 mm) as MVT system only

Approx. 37 ft2 (3.4 m2) per unit at 160 mils (4 mm)

Approx. 31 ft2 (2.8 m2) per unit at 3/16" (4.7 mm)

Approx. 25 ft2 (2.3 m2) per unit at 1/4" (6.3 mm)

(The above figures do not allow for surface porosity, profile or waste)
Application steps

MIXING

Mix Ratio

Parts 1 : 2 : 3 = Mix full units only

Mixing will be affected by temperature; condition materials for use to 65 - 75 °F (18 - 24 °C). Premix Parts 1 and 2 separately, make sure all pigment is evenly distributed. Pour Parts 1 and 2 into a clean mixing bucket, and mix for 30 seconds.

 

Add Part 3 (powder) pouring slowly over a period of 20 seconds. Note: Do not dump powder into resin! Allow Part 3 to blend for a further 2-1/2 minutes after all powder is emptied into the resin to ensure complete mixing and that all powders are evenly distributed. During the mixing operations, scrape down the sides and bottom of the container with a flat or straight edge trowel at least once to ensure complete mixing (Parts 1+2+3).

 

Note: Improved flowability on cool substrates and low ambient temperatures (<55 °F) can be achieved by removing a maximum of 2.2 lb (1.0 kg) of Part 3 (powder) per unit. Do not mix more material than can be applied within the working time limits (i.e. Pot Life) at the actual field temperature.

APPLICATION

Scratch Coat

Typically not required (see priming instructions)

 

Body Coat

Mix and pour Sika® Ucrete® HS22 NA materials on the floor. Spread to the desired thickness (160 mils - 1/4”) using a screed gauge rake or trowel. Take care to spread newly mixed materials across the transition of previous applied mixes before the surface begins to set. Immediately spike roll the surface to release trapped air in the matrix. Loop rolling is also acceptable.

 

Sika® Ucrete® HS22 NA requires the wet surface to be broadcast to rejection with quartz or mineral aggregates. Aggregate must fall vertically to avoid surface defects / do not broadcast up to the transition line of new mixes, always broadcast 2 - 3 feet beyond the wet edge. Allow broadcast surface to cure sufficiently to be able to resist foot traffic without damaging the surface. Remove excess aggregate by sweeping or vacuuming until surface is free of all loose particles and dust.

 

A topcoat of Sika® Ucrete® TC31 NA can be applied to lock in the aggregate. Allow a minimum 12 hour cure period at 68 °F (20 °C) before foot traffic after the Sika® Ucrete® TC31 NA is applied. Please refer to the individual most current and respective Product Data Sheet for specific and detailed information.

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