Efflorescence Blocker ®
Blocks efflorescence and alkali from coming to the surface
Prevents Mineral and Alkali Staining. Ideal for planters and groundwater penetration.
Excellent exterior durability
Resists hot-tire pickup. Excellent scratch and stain resistance.
Works as a universal primer
Wet and dry adhesion. Water and stain-resistant. Prevents costly construction repairs.
Efflorescence Blocker ®
Efflorescence Blocker is a versatile product designed to block and prevent efflorescence and alkali from rising to the surface of a porous substrate. It is ideal for applications where efflorescence is not preventable and is constantly being maintained. It is typically used on floors where waterproofing membranes have failed or were not installed or other applications where moisture penetration is unavoidable. The finish results in a natural appearance, with some substrates slightly darkening. Please keep in mind, Efflorescence Blocker is a preventative — if the surface already has efflorescence staining, it will need to be removed first.
Please Note: Current efflorescence staining will need to be removed first. Please see Restore-N-Prep
|Note to Specifier – CSI Reference Codes|
|04 2 00||Exterior Stone, Cladding, Stone Masonry|
|07 19 00||Acrylic, Silane Siloxane, Penetrating Polyester, Hybrid Water Repellents|
|09 24/25||Cement Plastering|
Best Tools for Application
A foam brush is recommended to soak in and saturate your substrate.
Use a small hand pump sprayer.
Use an airless sprayer with a spray tip size between .035mm to .051mm.
Application Best Practices
1) Step One: Prepare the surface and confirm surface moisture is less than 25%. Remove dirt, grime, efflorescence, lime run, construction debris, form oils and release agents, chalked materials, loose and peeling paint, mold, mildew, etc. All cracks should be pointed or caulked.
2) Step Two: Perform a test application to confirm fit and finish.
3) Step Three: Apply the product according to It’s TDS.
4) Step Four: Let cure.
5) Step Five: Perform post application test to assure results are achieved.
Benefits of Concentrates and How to Mix
- Reduces carbon footprint
- Reduces job site and landfill waste
- Reduces worker and supply chain fatigue
- Refer to the description on the packaging for dilution ratios.
- Pour contents of concentrate into an empty container. The container size should be the size of the finished amount of product.
- Fill the container with clean water – we recommend distilled water for best results.
- Mix lightly with a stir stick.
Specification and Ordering Options
Substrate Uses and Anticipated Coverage Rates
- Waterproof Membrane Failures
- Water Repellent Sealers
- Concrete Floors
- Retaining Walls
- Garden Stones and Pavers
- Sound Walls
- High Alkali or Mineral Substrates
- and more!
Coverage Rates (Theoretical)
|Substrate||Sq Ft / Gallon||# of Coats*|
|CMU (Precision Block)||200-225||1|
|CMU (Split Face)||180-200||1|
|Dense Masonry Surfaces||275-300||1|
|Concrete Curing Aid**||300-400||1|
*Always apply material at the appropriate spread rates. Please see Technical Data Sheet for correct application instructions.
**See TDS for details.
Testing Data and Product Characteristics
|ASTM C666||2200 Cycles – No effect|
|ASTM C672||100 Cycles No Mass Loss, No Scaling|
|ASTM D2243||Do Not Freeze|
|ASTM G154||2,500 Hours No Loss in Repellency|
|ASTM C672/M||100 Cycles Treated Concrete, No Scaling|
|ASTM E-514||98.7% Leak Red Water, Wind Driven Rain|
|SS-W-110C, ASTM C140||Water Pen Fed Spec, SS-W-110C, 75% Min Req, 97.2% Leak Red Chloride Ion Intr|
|Salt Pounding NCHRP||No. 244 Series IV – 95%, Red No. 244 Series II – 87% Red|
|Chloride Ion Absorption||No. 244 Series II – 87%|
|Water Abs CMU ASTM C140-75||98.2% Effective|
|Water Vapor Trans ASTM D-1653-71||100% Vapor Permeable|
|Water Repellency ASTM C67-87||98.2% Effective|
|Weathering ASTM G-53||3,500 Hours- No Change|
|Surface Burning ASTM E84||Flame Spread 0, Smoke Development 0|
|ASTM C 309||Pass|
|ASTM C1315||Type I, Class B|
|Material Type||Acrylic Copolymer Emulsion|
|Color of Material||Opal White|
|V.O.C.||0 g/L V.O.C. Compliant in North America|
|Viscosity||9.6 Seconds No. 4 Ford Cup|
|Weight||Approximately 8.6 lbs./Gal.|
|Surface Dry/Recoat/Usable||Approximately 1 Hour|
|Coalescence Cure Time||5 to 7 days|
Approvals, Qualifications and Associations
Call 1-888-765-7070 Option 2 for additional assistance.
|LAUSD – OESH||Approved|
|LEED Points||Up to 3 Points|
|LEED (New Construction)||Available|
|LEED (New Schools/CHPS)||Available|
|All Other States and Canada||Compliant|
|HPD||Various Products Approved|
|American Institute of Architecture||Two Approved CE courses|