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WR Meadows LIQUI-HARD ULTRA 55 Gallon Drum
WR Meadows LIQUI-HARD ULTRA is a waterborne, lithium-silicate concrete densifier and chemical hardener in a 55 gallon drum. It is sprayed on and kept wet for 5 to 10 minutes, with no flushing or rinsing.
- Covers 800 to 1000 sq ft/gal on fresh hard-troweled concrete
- VOC content 0 g/L; non-combustible and non-hazardous
- Indoor or outdoor use; can be burnished
$4,381.67
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WR Meadows LIQUI-HARD ULTRA 55 Gallon Drum
WR Meadows LIQUI-HARD ULTRA is a waterborne, lithium-silicate-based, colorless liquid that hardens and dustproofs concrete at a molecular level. As it penetrates, a reaction byproduct fills the pores, eliminating dusting and pitting and raising abrasion and chemical resistance. It stays on the surface for only 5 to 10 minutes and needs no flushing or rinsing. This 55 gallon drum covers about 44,000 to 55,000 sq ft on freshly placed hard-troweled concrete, about 24,750 to 44,000 sq ft on existing hard-troweled concrete, or about 13,750 to 22,000 sq ft on existing broomed concrete.
Key Features
- Lithium-silicate formula; no flushing or rinsing required
- Raises freeze/thaw, chemical, petroleum, and abrasion resistance
- Permanent sheen that can be polished or burnished
- Will not yellow, discolor, or show traffic wear marks
- Compatible with BELLATRIX; 0 g/L VOC
Applications
- Restaurant, industrial plant, and warehouse floors
- Storage silos, sewage plants, chemical facilities, and refineries
- Civic centers, arenas, stadiums, hospitals, airports, and museums
- Polished floors and concrete countertops
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Waterborne lithium silicate |
| Coverage, fresh hard-troweled | 800 to 1000 sq ft/gal |
| Coverage, existing hard-troweled | 450 to 800 sq ft/gal |
| Coverage, existing broomed | 250 to 400 sq ft/gal |
| Coverage per drum | About 44,000 to 55,000 sq ft fresh hard-troweled; about 24,750 to 44,000 existing hard-troweled; about 13,750 to 22,000 existing broomed |
| VOC | 0 g/L |
| VOC compliance | All U.S. VOC rules, including CARB, SCAQMD, LADCO, and OTC Phase I and II |
| Other | Treated surface USDA accepted; non-combustible |
| Dwell time | Keep wet 5 to 10 minutes, then remove any excess |
| Drying time | 1 to 2 hours |
| Foot traffic | At least 4 hours, 12 hours preferred |
| Application temperature | Concrete 40 F to 135 F |
| Burnishing | High-speed burnisher, 2000 to 2200 rpm |
| Shelf life | 1 year unopened, stored indoors at 40 to 90 F |
| Pack | 55 Gallon Drum |
| Part number | 3327055 |
Product documents: WR Meadows LIQUI-HARD ULTRA Data Sheet (PDF)
Frequently Asked Questions
What coverage does the LIQUI-HARD ULTRA 55 Gallon Drum give?
Per gallon: 800 to 1000 sq ft on freshly placed hard-troweled concrete, 450 to 800 on existing hard-troweled concrete, and 250 to 400 on existing broomed concrete. For this 55 gallon drum that is about 44,000 to 55,000, 24,750 to 44,000, or 13,750 to 22,000 sq ft. Rates vary with finish and porosity.
How is LIQUI-HARD ULTRA applied?
Spray it in a uniform pattern with a sprayer such as a Chapin 1949 with a 0.5 GPM nozzle, and spread it with a microfiber applicator so it does not puddle. Keep the surface wet for 5 to 10 minutes, adding material where it dries faster, then remove any excess. No flushing or rinsing is needed.
Can LIQUI-HARD ULTRA go on fresh concrete?
Yes, after final finishing and control joint installation, once all saw-cut dust is removed. WR Meadows notes SIL-CRETE may be a better choice for freshly placed concrete and recommends contacting them. Do not cover a freshly treated area with plastic; use a breathable covering such as construction paper.
How long before LIQUI-HARD ULTRA takes foot traffic?
It dries in 1 to 2 hours, faster on newly placed concrete and slower on existing concrete. Restrict foot traffic for at least four hours; twelve hours is preferable.
What temperatures and precautions apply?
Do not apply when the concrete is below 40 F or above 135 F, do not dilute, and keep the product from freezing. Do not over apply; use two thin coats if needed. Wash over-spray off glass, aluminum, and polished surfaces right away to avoid etching.
Is LIQUI-HARD ULTRA hazardous?
The data sheet lists it as non-combustible and non-hazardous with 0 g/L VOC. Direct contact can irritate skin and eyes, and spray mist can irritate the respiratory tract. See the Safety Data Sheet for full details.
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