NSF Product and Service Listings

These NSF Official Listings are current as of Saturday, January 22, 2022 at 12:15 a.m. Eastern Time. Please contact NSF to confirm the status of any Listing, report errors, or make suggestions.

Alert: NSF is concerned about fraudulent downloading and manipulation of website text. Always confirm this information by clicking on the below link for the most accurate information: http://info.nsf.org/Certified/PwsComponents/Listings.asp?Company=78140&Standard=061&

Drinking Water System Components - Health Effects

NOTE: Unless otherwise indicated for Materials, Certification is only for the Water Contact Material shown in the Listing. Click here for a list of Abbreviations used in these Listings. Click here for the definitions of Water Contact Temperatures denoted in these Listings.

1 Campus Drive
Parsippany, NJ 07054 
United States 

Facility : Charleston, SC

Protective (Barrier) Materials

    Water Water
  Water Contact Contact Contact
Trade Designation Size Restriction Temp Material

Coatings - Tank[1] [2]
HydroStop® BarrierGuard® Surface Coating >= 6000 gal. CLD 23 MLTPL
HydroStop® BarrierGuard® Waterproofing >= 6000 gal. CLD 23 MLTPL

[1] Number of Coats: 1-2*
    Maximum Field Use Dry Thickness (in mils): 48*
    Recoat Cure Time and Temperature: 1 hour at 70F*
    Final Cure Time/Temperature: 24 hours at 70F*
    Special Comments: HydroStop® BarrierGuard® Waterproofing slurry is made with a mix ratio
    1:1:3 (HydroStop® BarrierGuard® Waterproofing:Water:Cement) by volume. HydroStop®
    BarrierGuard® Waterproofing slurry has an induction period of one minute.*
[2] * MIXING: BarrierGuard® Surface Coating is a liquid that requires mixing.  A slurry is
    prepared by mixing one part BarrierGuard® Surface Coating, one part cool water, and
    three parts Portland Cement (Type I).  First, add BarrierGuard® Surface Coating and cool
    water to a clean 5-gallon (18.9 liter) pail and mix with a slow-speed mechanical mixer
    for about 1 minute.  Then, slowly add the Portland Cement (Type I) until a fully
    homogenous and lump-free slurry is produced.  When ambient temperature is above 80°F
    (26°C), add ice to cool down the slurry mix in order to help prevent premature gelling. 
    APPLICATION: BarrierGuard® Surface Coating may be applied by brush or roller.  Apply
    evenly at a rate of 0.5 - 0.8 gallons/100 ft2 (2.0- 3.3 L/10 m') per coat.  One coat is
    usually sufficient for coating most surfaces; however, a second coat may be required on
    porous surfaces.  Total coverage is dependent upon the substrate.  Smooth substrates may
    require less coating, while rough or porous substrates may require more coating. 
    HydroStop® PremiumCoat® Fabric or HydroStop® Fabric may be used with BarrierGuard®
    Surface Coating.  Apply BarrierGuard® Surface Coating onto substrate and immediately
    embed the HydroStop® Premium® Coat Fabric or HydroStop® Fabric (6 mils).  Before the
    first layer dries fully saturate the fabric with a second coat of slurry and allow to
    dry.  Once dry, apply a third and final coat.  See gaf.com for more information.  
    APPLICATION TEMPERATURE: Apply at air temperature of 50°F (10°C) and rising.  Product
    should be applied when surface temperature is between 40°F -90°F (4.4°C - 32.2°C).  For
    temperature ranges outside these limits, please contact GAF Technical Support at

Number of matching Manufacturers is 1
Number of matching Products is 2
Processing time was 0 seconds