ARDEX Concrete Guard
Technical Information & Installation Instructions

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Technical Information

PRODUCT DESCRIPTION
ARDEX Concrete Guard is a high solids acrylic sealer designed to seal and protect Ardex wear surface products, and all common concrete and masonry surfaces, both interior and exterior.

RANGE OF APPLICATION
Use ARDEX Concrete Guard to seal and protect all unpainted cementitious surfaces, indoors or outdoors, on residential, commercial and light industrial warehouse applications. Concrete patios, walkways, parking decks, driveways, walls, and columns can all be coated and sealed with ARDEX Concrete Guard.
It is especially suited for sealing ARDEX CD and CD Fine Concrete Dressing, ARDEX A-300 Pourable Outdoor Concrete Topping, ARDEX Poly-Top Polymer Concrete Patching Compound, ARDEX Tilt-Wall Patch, as well as ARDEX SD-T Self-Drying, Self-Leveling Concrete Topping and ARDEX K-500 Self-Leveling Concrete Topping.
Easy to apply, quick drying, nonflammable, and UV stable, ARDEX Concrete Guard is very durable and abrasion resistant. Its ability to penetrate into the surface of the concrete helps to resist flaking and peeling.

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Installation Instructions

SUBFLOOR PREPARATION
All existing concrete surfaces must be structurally sound, solid and completely clean. Remove all existing sealers, curing compounds, latex or gypsum patching compounds, dust, dirt, oil, or any other contaminant that may act as a bondbreaker. Do not use sweeping compounds, solvents or acid etching as a means of surface preparation.
ARDEX Concrete Guard can be applied over ARDEX SD-T, ARDEX Tilt-Wall Patch, and ARDEX CD and CD Fine Concrete Dressing as soon as they are hard enough to receive the application of the sealer without damaging the surface. Prior to installing the ARDEX Concrete Guard over regular concrete or masonry the substrate must be completely dry and must be between 50°F and 90°F.

RECOMMENDED TOOLS
ARDEX Concrete Guard is easily applied to a prepared surface using one of the following: nylon brush, 3/8" nap paint roller, or airless, HVLP and conventional spray equipment.

INSTALLATION
Due to the product's high percentage of solids, the contents of the container must be thoroughly mixed prior to use.
ARDEX Concrete Guard should be applied in two thin coats, allowing 2-4 hours between coats, depending upon atmospheric conditions. (Back-rolling is recommended when spraying to prevent puddling.)
When outdoors, do not apply if rain, fog, or extremely high humidity is expected within 6-8 hours or if freezing temperatures could occur within 24 hours of application. Do not apply on surfaces under 50°F or over 90°F.
Allow ARDEX Concrete Guard to cure a minimum of 24 hours before normal traffic, and a minimum of 72 hours before heavy traffic.
Always install an adequate number of properly located test areas to ensure the suitability of the system for its intended use.

NOTE: Apply two coats of ARDEX Concrete Guard to insure uniformity and optimum durability.

COLORS
ARDEX Concrete Guard is available in clear or "Concrete Gray". While clear will be appropriate for most jobs, the use of Concrete Gray will provide a more uniform appearance on projects where different concrete substrates exist.

USDA/FDA COMPLIANCE
In compliance with USDA/FDA Food Safety & Inspection Service Directive 1000.4, Rev. 1, all ARDEX Concrete Guard products are acceptable for industrial uses including plants under USDA and FDA federal inspection, such as meat, poultry and beverage. These products, once applied properly, create a non-porous coating that is approved for incidental food contact and will perform well under the daily regimen of thorough cleaning as well as cyclical temperature changes and wet conditions.

STORAGE
ARDEX Concrete Guard should be stored within the range of 50°-90°F. Tightly close the lid on partially used containers. If ARDEX Concrete Guard is frozen, it will have a congealed or stringy appearance and should not be used. In this case contact the Ardex Technical Service Department for further information.

PACKAGING: 1 Gallon containers.
SHELF LIFE: One year.
CLEAN UP: Use water only.

TECHNICAL DATA
Finish: Matte to semi-gloss. Successive coats will increase sheen depending upon substrate.
Solids content: 40%
S.C.O.F: (ASTM C1028)
Smooth surface profile, 0.60 - 0.70
Medium to coarse profile, 0.88-0.90
Solvent: Water only
Meets USDA/FDA FSIS Directive 1000.4, Rev. 1.
Dry Time:
To touch: 1 hour
To recoat: 2 - 4 hours
To normal traffic: 24 hours
Primer: Not required
Coverage:
Gray over Broom Finish = 150 to 200 ft.2/gal
Gray over Smooth Surface = 200 to 400 ft.2/gal
Clear over Broom Finish = 200 to 300 ft.2/gal
Clear over Smooth Surface = 400 to 600 ft.2/gal

STAIN RESISTANCE CHART
ASTM D2299

 

REAGENT

NON-ABRADED SURFACE

ABRADED SURFACE
Heavy Duty Detergent Solution
1
1
Ammonia Solution - 5%
1
2
Prestone Coolant
1
2
Kerosene
1
2
Soap Solution - 1%
1
1
Diesel Fuel
1
2
Transformer Oil
1
1
Turpentine
1
2
Gasoline
1
1
Paint Thinner
1
1
Lubricating Oil
1
1
Sulfuric Acid-Concentrated
3
3
Sulfuric Acid - 3%
2
3
Hydraulic Fluids
3
3
Toluene
1
2
Salt Solution - 20%
1
1
Muratic Acid - 10%
1
1
Chlorine Solution - 10%
2
2

NUMBER CODE:

1. Unaffected
2. Superficial Effect
3. Considerable Effect

 

TECHNICAL DATA

Coverage: 
A 40 lb. bag covers up to 120 sq.ft., a 20 lb. bag up to 60 sq. ft.
Mixing Ratio:
(Parts by volume) 1 part water to 2¾  parts powder
Working Time:
Approx. 30 minutes at 70ºF
Initial Set, ASTM C191:
Approx. 90 minutes at 70ºF
Final Set, ASTM C191:
Approx. 2 hours at 70ºF
Compressive Strength, ASTM C-109/mod.(air cure):
4000 psi after 28 days
Flexural Strength, ASTM C348:
1,000 psi after 28 days
Flammability, ASTM E84:
 Flame Spread 0

 Fuel Contribution 0

 Smoke Development 0
All data based on a mixing ratio of 1:2.75 p.b.v. at 70ºF.

LIMITED WARRANTY: 
ARDEX, L.P. warrants that if this product proves to have manufacturing defects and ARDEX is notified of such within six months from the date ARDEX shipped the product, ARDEX will replace the defective product f.o.b. factory.  Such product replacement shall constitute the sole and exclusive remedy for any claim under this warranty.  ARDEX does not authorize anyone, including ARDEX Representatives, to make any statements which supersede, modify or supplement the information provided on its printed literature or package labels without written confirmation from the ARDEX Technical Service Department.  Any installations proceeding without this confirmation, or mis-installations of the product will void this warranty.  THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY AND IS STRICTLY LIMITED TO ITS TERMS.  ARDEX MAKES NO WARRANTY OF MERCHANTABILITY OR SUITABILITY OF ITS PRODUCTS FOR ANY PARTICULAR PURPOSE.  All product demonstrations are placed for illustrative purposes only and do not constitute a warranty of any kind.  ARDEX SELLS ITS PRODUCTS UPON THE CONDITION THAT CUSTOMERS SHALL CONDUCT THEIR OWN TESTS TO DETERMINE THE SUITABILITY OF THE PRODUCTS FOR THE CUSTOMERS' INTENDED PURPOSES.  UNDER NO CIRCUMSTANCES WILL ARDEX BE LIABLE FOR ECONOMIC, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES OR LOSSES OF ANY KIND WHATSOEVER ARISING OUT OF OR OCCASIONED BY THE SELECTION, USE, INSTALLATION OR REPLACEMENT OF THESE PRODUCTS.


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ARDEX ENGINEERED CEMENTS
400 Ardex Park Drive
Aliquippa, Pennsylvania 15001 • USA

Tel: (724) 203-5000 • Fax: (724) 203-5001