WATER REPELLENT
Product Description
Water repellent is a stable, VOC compliant, emulsion that 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.

Water repellent is not recommended for below grade applications where hydrostatic pressure can be significant.

Benefits
  • Provides excellent water repellency to reduce cracking, spalling, freeze/thaw damage, chemical degradaton, biological growth, efflorescence, and dirt pickup, thereby lengthening substrate life and reducing maintenance costs.
  • Provides excellent beading for improved aesthetics
  • Superior storage stability including freeze/thaw stability for ease of use
  • Low VOC emissions on curing; EPA compliant
  • Formulated to minimize darkening effects thus not changing substrate appearances
  • Good stability on highly alkaline surfaces for long term durability
  • Physically and chemically bonds to substrates increasing coating life and making cleaning easier, thereby reducing maintenance costs
  • Water repellent is UV stable and resistant to biological degradation for longer service life leading to less cost for repetitive applications
  • Water repellent is vapor permeable to resist cracking, peeling and blistering, and allowing carbonation to continue after water repellent application. This lengthens substrate life and allows for greater substrate structural strength over time
  • Water repellent can improve adhesion of paints to mineral substances thus priming them for painting
Use Information
Surface Preparation
Surface preparation depends on substrate placement, type and strength, curing and finishing processes, age, condition, previous contamination, and the presence of previous coatings as well as the application of Water Repellent. Surfaces should be clean from dust, dirt, oils, grease, curing compounds, other coatings, efflorescence, and laitance before applying Water Repellent. Cleaning methods which are compatible with the application of Water Repellent include:
  • Mechanical - abrasive blasting (sand, baking soda, vacuum)
  • Chemical - acid etching, stripping, solvent degreasing, caustic soda scrubbing, alkaline soap scrubbing, high pressure washing, high pressure washing with sand
  • Heat - propane and acetylene torching
If strong acidic or caustic cleaning agents are used, neutralize the surface and completely wash to remove any residues. Before using any surface preparation method a test patch should be performed with the customer's approval to ensure that their needs are met.

New concrete should be allowed to cure for at least 28 days before applying Water Repellent. In addition, any repair work should be performed at least 3 days before Water Repellent is applied.

Application
Two coats of Water Repellent should be applied using a 'wet-on-wet' procedure to ensure complete coverage. Water Repellent can be applied by brushing, spraying or dipping. Maximum water repellency is realized in 72 hours depending on curing conditions. Beading generally improves over time.

A test patch should be performed prior to general application with the customer's approval to ensure that desired repellency and appearance is achieved.

Recoatability
Substrates that are coated with Water Repellent are generally recoatable with water and solvent borne paints. Water Repellent can be used as a primer to provide improved adhesion with paints on mineral substrates.
Clean Up
Thoroughly rinse application equipment with clean water
Disposal
Water Repellent must be disposed according to local, state and federal regulations. Water Repellent should be treated as dilute solutions of 'silicone resins' which are non-RCRA (Resource Conservation and Recovery Act) or non-hazardous wastes.
Safety and Handling
For specific information regarding safe handling of this material, please refer to the Material Safety Data Sheet.

Water Repellent can be used in a safe and environmentally friendly manner. It is designed to reduce the output of VOC's while providing the customer with a high performance water repellent.

Storage and Shelf-Life
Water Repellent has a shelf-life of 12 months provided it is stored in tightly closed containers and protected from sunlight and stored at temperatures between 32°F and 100°F. Product older than 12 months can however be used if it is found to pass relevant quality controls.
Physical Properties:
ColorMilky White
SolventWater
0.990.99
Density7.90#/gallon
Flash Point>200°F
Penetrationup to " (Depending on substrate)
VOC Content28g/1...234 lbs./gallon
Shelf Life12 months
Yellowingnone
Surface Appearance After ApplicationUnchanged
Coverage Rates
----------------------------------Coverage Rate (Sq. Ft. per Gallon)
Concrete Block40-80
Split Face Block70-120
Stucco60-100
Porous Brick90-110
Dense Brick100-150
Exposed Aggregate Concrete150-200

 

  
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