Product Data Sheet
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LIQUI-HARD® ULTRA
Molecular Concrete Densifier and Chemical Hardener
DESCRIPTION
LIQUI-HARD ULTRA concrete densifier and chemical hardener is a waterborne, lithium-silicate-based, ready-to-use, colorless liquid, which hardens and dustproofs concrete at a molecular level. After proper application, the finished surface offers substantial improvement in abrasion and chemical resistance and will significantly improve the durability of the surface when compared to untreated concrete. As LIQUI-HARD ULTRA is applied and penetrates into the concrete surface, a chemical reaction takes place, producing a byproduct that fills in the pores of the concrete. LIQUI-HARD ULTRA solidifies the concrete, eliminating dusting and pitting.
LIQUI-HARD ULTRA is chemically engineered to provide timely, quick, sustainable performance. The product is applied and then left on the surface for 5 – 10 minutes. In this short period of time, the colorless liquid quickly penetrates into the surface. After application, the resulting surface features enhanced protection and sheen, coupled with superior abrasion resistance. This environmentally safe, water-based product features a zero VOC content and provides an attractive option in green building applications.
USES
LIQUI-HARD ULTRA is recommended for use wherever hardened, dustproofed, and improved chemical and abrasion resistant surfaces are required. Ideal applications include floors in restaurants, industrial plants, warehouses, storage silos, sewage plants, chemical processing facilities, refineries, and heavy pedestrian floor traffic areas, such as civic centers, sports arenas, stadiums, hospitals, airports, and museums. LIQUI-HARD ULTRA can successfully be used in conjunction with shake-on hardeners.
The INDUROSHINE® polished concrete system combines green concrete polishing and diamond grinding equipment with LIQUI-HARD ULTRA to create a unique, high sheen, wear-resistant concrete floor. Also works well on concrete countertops. Please contact W. R. MEADOWS for more information.
FEATURES/BENEFITS
- Penetrates deeply into concrete to densify and harden surfaces to help prevent entry of moisture and other foreign matter.
- Quick and easy, hassle-free application procedure (no flushing or rinsing required).
- Improved freeze/thaw resistance.
- Dustproofs and improves chemical, petroleum, and abrasion resistance of treated surfaces.
- Provides a permanent, attractive sheen with the ability to polish.
- Protects against scratching or peeling.
- Provides tough, protected surface that won’t yellow, discolor, or show pedestrian or vehicular traffic wear marks.
- Improves light reflectance.
- May be burnished.
- Compatible with BELLATRIX® for an enhanced concrete floor.
- Ready to use from container and easy to apply.
- Saves time on the polishing/burnishing process.
- Indoor or outdoor use.
- Environmentally safe, non-hazardous.
PACKAGING
5 Gallon (18.93 Liter) Pails
55 Gallon (208.20 Liter) Drums
COVERAGE
Type of Surface | ft.2/gal. | m2/L |
Freshly placed, hard-troweled, uncured concrete | 800 – 1000 | 19.63 – 24.54 |
Existing hard-troweled concrete: | 450 – 800 | 11.04 – 19.63 |
Existing broomed concrete: | 250 – 400 | 6.14 – 9.81 |
Note: Coverage rates may vary, depending on the finish and porosity of the concrete.
SHELF LIFE
When stored indoors in original, unopened containers at temperatures between 40° – 90° F (4° – 32° C), optimum performance and best use is obtained within one year of date of manufacture.
SPECIFICATIONS/STANDARDS
- Complies all U.S. VOC regulations, including National EPA VOC Emission Standard for Architectural Coatings, CARB, SCAQMD, Maricopa County, Colorado AIM, Utah Department of Air Quality, LADCO, and OTC Phase I and II VOC regulations.
- Treated surface is USDA accepted.
TECHNICAL DATA
VOC Content: 0 g/L
APPLICATION
Mixing … For optimum performance, gentle mixing or agitation is recommended.
Application Method
Freshly Placed Concrete … Depending on the application, SIL-CRETE may be a better choice for freshly placed concrete. Contact W. R. MEADOWS for recommendation. If LIQUI-HARD ULTRA is to be used on fresh concrete, apply after final finishing and control joints installation using a low-pressure, high-volume sprayer. Note: All saw cut debris/dust must be removed prior to the application of LIQUI-HARD ULTRA. Spray in uniform pattern using sprayer such as Chapin 1949 with 0.5 GPM (1.9 LPM) spray nozzle; use microfiber applicator to evenly spread out and ensure puddles are spread out. Keep surface wet for 5 – 10 min; ensure that additional material is applied to areas that dry quicker. After 5-10 min, if excess is material is left on the surface, it must be removed. Do not allow LIQUI-HARD ULTRA to puddle. NOTE: If subsequent coatings or treatments will be applied, W. R. MEADOWS recommends that all surfaces are cleaned prior.
Existing Concrete … Surface needs to be clean free of oil, bond-breakers, curing compounds, dust, or anything else that will inhibit the penetration. If needed for existing hard-troweled concrete, clean the surface by sanding, grinding, or by the use of a diamond adhesive pad. Remove any dust and thoroughly rinse with water. Surface must be thoroughly dry prior to the application of LIQUI-HARD ULTRA. Spray in uniform pattern using a sprayer, such as a Chapin 1949 with 0.5 GPM (1.9 LPM) spray nozzle; use a microfiber applicator to evenly spread out and ensure puddles are spread out. Keep surface wet for 5 – 10 minutes; ensure that additional material is applied to areas that dry quicker. After 5-10 min, if excess is material is left on the surface, it must be removed. Do not allow LIQUI-HARD ULTRA to puddle. NOTE: If subsequent coatings or treatments will be applied, for best practices, W. R. MEADOWS recommends that all surfaces are clean prior.
LIQUI-HARD ULTRA Application Video
Burnishing … LIQUI-HARD ULTRA can be burnished to a high sheen on steel trowel concrete floors. A high-speed burnisher (2000 – 2200 rpm) with appropriate maintenance pad is needed.
WARNING … Immediately wash off over-spray from glass, aluminum, or highly polished surfaces with water to avoid etching of surface on both new and existing concrete applications.
Drying Time … Allow surface to dry 1 – 2 hours. LIQUI-HARD ULTRA dries very quickly on newly placed concrete. Drying times may be extended on existing (old) concrete due to surface conditions. Restrict foot traffic for at least four hours; 12 hours is preferable.
Cleanup … While still wet, equipment may be cleaned quickly and easily with soap and water.
PRECAUTIONS
DO NOT DILUTE. Do not apply if the temperature of the concrete is less than 40˚ F (4˚ C) or above 135˚ F (57˚ C). KEEP FROM FREEZING. If frozen, product should be thawed and agitated slightly prior to use. If excess material remains on surface after 20 minutes, mop or spread out to a thin, even material coverage. Do not allow excess material to puddle. Do not over apply. Apply two thin coats if necessary. Do not cover freshly treated area with plastic. If treated area needs to be protected from other trades, cover with a “breathable” covering, such as construction paper.
HEALTH AND SAFETY
LIQUI-HARD ULTRA is non-combustible. Direct contact will result in irritation of the skin and eyes. Inhalation of product mist may result in respiratory irritation. Refer to Safety Data Sheet for complete health and safety information.
2024-04