Commercial Grade Concrete Sealer

COMMERCIAL GRADE CONCRETE SEALER, HARDENER, DENSIFIER & SALT BARRIER MANUFACTURED BY ZEROVOC TECHNOLOGY

 

PRODUCT DESCRIPTION

LITHISEAL ZLi 71 is a clear, solvent-free, odorless, VOC compliant, water-based environmentally safe-to-use salt barrier and dust proofer that seals, hardens and densifies concrete and masonry.

 

LITHISEAL ZLi 71 was developed to treat a wide variety of mineral substrates including architectural concrete, concrete block, splitface block, pavers, stucco, porous and dense brick, clay tile and exposed aggregate concrete. It has been found to be particularly effective in commercial concrete sealing applications where high water repellency performance is required.

 

UNIQUE CHARACTERISTICS

LITHISEAL ZLi 71 incorporates the sealing, hardening and alkali-silica reaction (ASR) preventing properties of lithium silicate with the chloride protection of silane/siloxane, all in a single, permanent application. LITHISEAL ZLi 71 forms an effective chloride ion screen providing unmatched protection against water and water-carried salts that cause erosion, deterioration and corrosion. LITHISEAL ZLi 71 can be used as an interior or exterior treatment for both horizontal and vertical concrete and masonry. It is perfect for parking garages, bridge decks, brick structures, historic restoration and integrally colored concrete.

 

LITHISEAL ZLi 71 proprietary silane/ siloxane technology provides excellent water repellency to reduce cracking, spalling, freeze/thaw damage, chemical degradation, biological growth, efflorescence, and dirt pickup, thereby lengthening substrate life and reducing maintenance costs.

 

LITHISEAL ZLi 71 helps prevent Alkali-Silica Reaction (ASR), a serious problem that occurs when the alkali in the large and fine aggregates reacts with the silica in the cement and with water to form an expansive gel, which can break concrete apart. Other chemical hardeners use potassium or sodium compounds, which can raise alkalinity and contribute to ASR. LITHISEAL ZLi 71 uses lithium technology that does not contribute to the alkalinity and can even prevent surface ASR.

 

LITHISEAL ZLi 71 meets industry standards (NCHRP 244) for protecting concrete against chloride intrusion. (89% + effectiveness)

 

LITHISEAL ZLi 71 is vapor permeable to resist cracking, peeling and blistering. This lengthens substrate life and allows for greater structure strength over time.

 

LITHISEAL ZLi 71 protects gray and colored concrete from weathering and efflorescence thereby reducing maintenance, cleaning costs and repairs.

 

PHYSICAL PROPERTIES

Form: Milky white, dries clear
Solvents: None
Total Solids: 28%
Active Ingredients: 100% of total solids
Weight/Gal: 9.28 lbs/gal
Specific Gravity: 1.14
Volatile Organic Content: .2 lb/gal
pH: 9
Slip Resistance: Does not change surface friction coefficient

 

New concrete should be allowed to cure for at least 28 days before applying LITHISEAL ZLi 71. In addition, any repair work should be performed at least 3 days before application.

 

FINAL RESULTS

Typical drying time is 1-2 hours for both horizontal and vertical surfaces.

 

Horizontal surfaces are ready for foot traffic and use when dry. Vehicle traffic should be kept to a minimum for at least 24 hours. A light lithium residue may form on the surface after the surface is dry. This is excess solution that was not absorbed and can be removed with a stiff broom. Caution: During application, surfaces wet with solution may be slippery.
Water repellency and hardness continues to develop for up to 20 days following the application; however, significant results should be visible within 24 hours.
Note: All clear sealers will accentuate any nonuniformity in concrete color, texture, or finish.

 

TEST DATA 

 
TEST METHOD
PURPOSE
CONCENTRATION %
PERFORMANCE
Construction Technology Laboratories  NCHRP 244 Report
 
 
 
Series II 
Reduction in Water Absorption 
20.0 
1 day: 75% 5 days: 78%
 21 days: 85% Avg. 79%
 
Reduction in Chloride Ion Content
 
1 day: 70% 5 days: 81%
 21 days: 89% Avg. 80%
 
Water Vapor Transmission
 
100%
 
Series IV
Southern Exposure
 
Accelerated Weathering Test: Resistance to UV light 
Reduction in Soluble Chloride
20.0
 
No Discoloration 
91% Reduction in Soluble Chloride
ASTM E 514-86 
 
Water Penetration and Leakage
 hrough Masonry
10.0
20.0
90% Reduction in Leakage Rate
 89% Reduction in Leakage Rate
 AASHTO 
T-259 &T-260
Resistance of Concrete to Chloride Ion Penetration
20.0
75% Reduction in Total Chloride
 EPA 24/ASTM D3960/
Volatile Organic Content
100.0
.2 lbs./gallon
Fed Spec TT-C-55B
Wind Driven Rain
 
200 Hours with no Effect
ASTM E 96-95 
Water Vapor Transmission (perms)
 
Up: 3.1 (Untreated: 2.9)
 Down: 2.5 (Untreated: 3.0)
Federal Specification
  SS-W-110C
Water Repellency
 (1.0% Maximum Specified)
12.5
 15.0
20.00
0.2% Water Absorption
 0.2% Water Absorption
0.3% Water Absorption
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