NSF Product and Service Listings

[1] Number of Coats: 3*
    Maximum Field Use Dry Thickness (in mils): 48 mils*
    Recoat Cure Time and Temperature: See Footnote [2]
    Final Cure Time/Temperature: 24 hours at 70F*
    Special Comments: HydroStop® BarrierGuard® Surface Coating or GAF BarrierGuard® Surface
    Coating has a mix ratio 1:1:3 (HydroStop®  BarrierGuard® Surface Coating or GAF
    BarrierGuard® Surface Coating:Water:Cement) by volume.  HydroStop® BarrierGuard® Surface
    Coating or GAF BarrierGuard® Surface.  Coating slurry has an induction period of one
    minute.*
    
[2] * MIXING: HydroStop® BarrierGuard® Surface Coating and GAF BarrierGuard® Surface
    Coatings are liquids that requires mixing.  A slurry is prepared by mixing one part
    coating, one part cool water, and three parts Portland Cement (Type I).  First, add
    HydroStop® BarrierGuard® Surface Coating or GAF 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: HydroStop® BarrierGuard® Surface Coating and GAF BarrierGuard® Surface
    Coatings 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.  GAF Premium Fabric or
    HydroStop® PremiumCoat® Fabric may be used with the HydroStop® BarrierGuard® Surface
    Coating or GAF BarrierGuard® Surface Coating. 
    
    Coat 1 and 2: Apply HydroStop® BarrierGuard® Surface Coating or GAF BarrierGuard®
    Surface Coating (14 mils) onto substrate and immediately embed the GAF Premium Fabric or
    HydroStop® PremiumCoat® Fabric (6 mils).  Before the first layer dries fully saturate
    the fabric with a second coat of slurry (14 mils).  Allow to dry at least 24 hours at
    70°F.
    
    Coat 3: Once dry, apply additional slurry (14 mils) and allow to dry for 24 hours at
    70°F.
        
    Maximum total thickness including fabric is 48 mils for 3 coats.