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USG Liquid Waterproofing Membrane 3.5 Gallon

Waterproofing

Waterproofing membranes keep showers, floors, and exterior installs watertight before the first tile goes down. Shop KERDI sheet membrane, liquid-applied membranes from TEC and USG, banding, corners, and pipe seals.


  • 408233  50267

    USG Liquid Waterproofing Membrane 3.5 Gallon

    T408233

    $12999
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  • 408231  17067

    USG Liquid Waterproofing Membrane 1 Gallon

    T408231

    $5499
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  • 428009  84899

    TEC Waterproofing Mesh 6"x50' 25 Sq Ft Roll

    T428009

    $1099
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  • 428003  54163

    TEC 316 HydraFlex Waterproofing Membrane 3.5 Gallon

    T428003

    $18999
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  • 428001  57510

    TEC 316 HydraFlex Waterproofing Membrane 1 Gallon

    T428001

    $8399
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  • 408117  34968

    Schluter Kerdi-Band 5" x 98'5" Waterproofing Strip

    T408117

    $13798
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  • 408115  11669

    KERDI-BAND 5" Waterproofing Strip 16'5"

    T408115

    $2556
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  • 408113  75385

    KERDI Waterproofing Membrane 108 Sq Ft Roll

    T408113

    $26742
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  • 408111  30479

    KERDI Waterproofing Membrane 323 Sq Ft Roll

    T408111

    $72053
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  • 408127  74449

    KERDI-SEAL Pipe Nipple Seal 1/2" Opening

    T408127

    $999
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  • 408131  35877

    KERDI-SEAL Mixing Valve Seal 4-1/2" Opening

    T408131

    $1121
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  • 408217  53138

    Schluter KERDI-SEAL 3/4" Pipe Seal

    T408217

    $972
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  • 408215  31354

    Schluter KERDI-SEAL 1/2" Pipe Seal

    T408215

    $972
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  • 408139  92251

    Schluter KERDI Kereck-F Preformed Outside Corner 10 Pack

    T408139

    $9390
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  • 408135  47790

    Schluter KERDI Kereck-F Preformed Outside Corner 2 Pack

    T408135

    $1972
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  • 408137  56238

    Schluter KERDI Kereck-F Preformed Inside Corner 10 Pack

    T408137

    $9390
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  • 408133  79823

    Schluter KERDI Kereck-F Preformed Inside Corner 2 Pack

    T408133

    $1972
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  • 408207  65191

    SubSeal Liquid Waterproofing Membrane

    T408207

    $7889
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  • 408197  18547

    Strataflex Waterproofing Membrane

    T408197

    $22999
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  • 408143  43238

    NS97 Exterior Primer, 1 Gallon

    T408143

    $5899
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  • 408097  01716

    NAC TAC Interior/Exterior Primer, 1 Gallon

    T408097

    $6799
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  • 408213  72347

    NAC Strataflex 6" x 50' Seam Tape

    T408213

    $3739
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  • 408211  22655

    NAC PFO Preformed Outside Fabric Corners

    T408211

    $687
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  • 408209  49466

    NAC PFI Preformed Inside Fabric Corners

    T408209

    $927
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  • 408205  28384

    NAC Extreme Deck Waterproofing Kit

    T408205

    $45827
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  • 408039  79461

    Richpan 1040 PVC Shower Pan Liner Membrane, 6 ft Wide (Per Linear Foot)

    T408039

    $1209
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Shop Shower & Tile Waterproofing Membranes

Tile and grout are not waterproof — the membrane behind them is. This collection covers both ways to get there: sheet systems like Schluter KERDI with its banding, preformed corners, and pipe seals, and liquid-applied membranes like TEC HydraFlex and USG Liquid Waterproofing that roll on and cure into a seamless barrier. Exterior deck systems and seam accessories round out the lineup.

Building a Watertight Assembly

  • Sheet membrane (KERDI) — consistent thickness, immediate tile-ready coverage, the standard for showers.
  • Liquid membranes — fast coverage on floors, curbs, and odd shapes; most double as crack isolation.
  • Banding, corners & seals — seams, changes of plane, and pipe penetrations are where showers fail; detail them properly.

Why Buy Waterproofing from Tile Outlets of America

We stock complete systems — membrane, band, corners, seals, and the right mortar to set them — at outlet prices from our Florida warehouses. With three Florida Flooring Supercenters in Fort Myers, Sarasota, and Tampa, you can see products in person and get advice from people who install tile every day.

Frequently Asked Questions

Is tile waterproof by itself?
No. Tile and cement grout both pass water vapor and some liquid water. In showers and wet areas, a waterproofing membrane behind or beneath the tile is what actually keeps water out of the wall and floor assembly.
Sheet membrane or liquid membrane — which should I use?
Sheet systems like Schluter KERDI give a consistent, immediately tileable layer and are the shower standard. Liquid membranes like TEC HydraFlex roll on fast over floors, curbs, and complex shapes, and most add crack isolation. Many pros use both on one job.
Do I need KERDI-BAND and preformed corners?
Yes — seams, corners, and penetrations are where showers leak. Band every seam and change of plane, use preformed inside/outside corners, and seal valves and pipes with KERDI-SEAL gaskets.
Can I tile the same day I waterproof?
With sheet membranes, yes — tile as soon as the membrane is set. Liquid membranes need to cure between coats and before tiling; check the product's flash times, typically 1–3 hours per coat.

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