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TEC PermaFlex 300 LHT Mortar – Large Format Tile & Stone Thin-Set, 50 lb.

Adhesives & Waterproofing

Everything that bonds and protects a tile installation: thinset mortars, mastic adhesives, waterproofing membranes, sealers, cleaners, and specialty glues — matched to your tile, substrate, and conditions from large-format porcelain to natural stone.
  • 413045 79270

    Merkrete 735 PremiumFlex Best-Grade Tile Mortar, White, 50 lb

    T413045

    $2199
    Added to Cart
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  • Filashowercleanandshine

    FILA Soap Scum Remover 24 oz Spray

    T407251

    $1539
    Added to Cart
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  • 408233 50267

    USG Liquid Waterproofing Membrane 3.5 Gallon

    T408233

    $12999
    Added to Cart
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  • 408231 17067

    USG Liquid Waterproofing Membrane 1 Gallon

    T408231

    $5499
    Added to Cart
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  • 428009 84899

    TEC Waterproofing Mesh 6"x50' 25 Sq Ft Roll

    T428009

    $1099
    Added to Cart
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  • 428003 54163

    TEC 316 HydraFlex Waterproofing Membrane 3.5 Gallon

    T428003

    $18999
    Added to Cart
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  • 428001 57510

    TEC 316 HydraFlex Waterproofing Membrane 1 Gallon

    T428001

    $8399
    Added to Cart
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  • 408119 27580

    Schluter KERDI-FIX Seal & Bond Compound 290ml Grey

    T408119

    $3304
    Added to Cart
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  • 408117 34968

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

    T408117

    $13798
    Added to Cart
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  • 408115 11669

    KERDI-BAND 5" Waterproofing Strip 16'5"

    T408115

    $2556
    Added to Cart
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  • 408113 75385

    KERDI Waterproofing Membrane 108 Sq Ft Roll

    T408113

    $26742
    Added to Cart
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  • 408111 30479

    KERDI Waterproofing Membrane 323 Sq Ft Roll

    T408111

    $72053
    Added to Cart
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  • 408127 74449

    KERDI-SEAL Pipe Nipple Seal 1/2" Opening

    T408127

    $999
    Added to Cart
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  • 408131 35877

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

    T408131

    $1121
    Added to Cart
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  • 408217 53138

    Schluter KERDI-SEAL 3/4" Pipe Seal

    T408217

    $972
    Added to Cart
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  • 408215 31354

    Schluter KERDI-SEAL 1/2" Pipe Seal

    T408215

    $972
    Added to Cart
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  • 408139 92251

    Schluter KERDI Kereck-F Preformed Outside Corner 10 Pack

    T408139

    $9390
    Added to Cart
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  • 408135 47790

    Schluter KERDI Kereck-F Preformed Outside Corner 2 Pack

    T408135

    $1972
    Added to Cart
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  • 408137 56238

    Schluter KERDI Kereck-F Preformed Inside Corner 10 Pack

    T408137

    $9390
    Added to Cart
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  • 408133 79823

    Schluter KERDI Kereck-F Preformed Inside Corner 2 Pack

    T408133

    $1972
    Added to Cart
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  • 408207 65191

    SubSeal Liquid Waterproofing Membrane

    T408207

    $7889
    Added to Cart
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  • 408197 18547

    Strataflex Waterproofing Membrane

    T408197

    $22999
    Added to Cart
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  • 408143 43238

    NS97 Exterior Primer, 1 Gallon

    T408143

    $5899
    Added to Cart
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  • 408097 01716

    NAC TAC Interior/Exterior Primer, 1 Gallon

    T408097

    $6799
    Added to Cart
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  • 408213 72347

    NAC Strataflex 6" x 50' Seam Tape

    T408213

    $3739
    Added to Cart
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  • 408211 22655

    NAC PFO Preformed Outside Fabric Corners

    T408211

    $687
    Added to Cart
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  • 408209 49466

    NAC PFI Preformed Inside Fabric Corners

    T408209

    $927
    Added to Cart
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  • 408205 28384

    NAC Extreme Deck Waterproofing Kit

    T408205

    $45827
    Added to Cart
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  • 407215 14881

    Epoxy Grout Haze Remover 24 oz Spray

    T407215

    $2189
    Added to Cart
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  • 407131 43077

    Grout Sealer Roller Bottle Applicator

    T407131

    $595
    Added to Cart
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  • 407247 14922

    WET ECO Water-Based Wet Look Sealer

    T407247

    $3629
    Added to Cart
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  • 407245 62845

    Stone Plus Penetrating Stone Enhancer

    T407245

    $6997
    Added to Cart
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  • 407237 45315

    SR95 Colored Organic Stain Remover

    T407237

    $1497
    Added to Cart
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  • 407233 27577

    PS87 Heavy Duty Cleaner Quart

    T407233

    $2749
    Added to Cart
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  • 407231 17601

    PROSTRIP Sealer, Coating & Paint Remover

    T407231

    $3299
    Added to Cart
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  • 407241 98361

    MP90 Solvent-Based Penetrating Sealer

    T407241

    $8049
    Added to Cart
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  • 407243 12694

    M90 ECO PLUS Water-Based Penetrating Sealer

    T407243

    $6997
    Added to Cart
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  • 407229 66363

    GroutRenew Grout Cleaner & Deep Stain Remover

    T407229

    $1729
    Added to Cart
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  • 407239 82491

    Grout Proof Water-Based Grout Sealer

    T407239

    $2419
    Added to Cart
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  • 407253 20047

    FILA Contractor's Choice Sealer 1 Gallon

    T407253

    $5197
    Added to Cart
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  • 407235 65858

    EPOXYOFF Epoxy Residue Remover Quart

    T407235

    $2497
    Added to Cart
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  • 407223 30557

    DETERDEK Quart Grout Haze Remover

    T407223

    $1759
    Added to Cart
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  • 407221 72553

    DETERDEK Gallon Grout Haze Remover

    T407221

    $5279
    Added to Cart
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  • 407227 65198

    CLEANALL Quart Pro All Surfaces Cleaner

    T407227

    $1379
    Added to Cart
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  • 407225 02056

    CLEANALL Gallon Pro All Surfaces Cleaner

    T407225

    $4139
    Added to Cart
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  • 407121 41636

    Sulfamic Acid Crystals, 1 lb Jar

    T407121

    $1395
    Added to Cart
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  • 407103 43475

    Solvent-Based Stone Enhancer, Quart

    T407103

    $9095
    Added to Cart
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  • Tecpermaflex300lhtmortar TEC PermaFlex 300 LHT Mortar – Large Format Tile & Stone Thin-Set, 50 lb.
    Sold out

    TEC PermaFlex 300 LHT Mortar – Large Format Tile & Stone Thin-Set, 50 lb.

    T423045

    $1849
    Added to Cart
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Shop Tile Adhesives, Mortars & Waterproofing

A tile job succeeds or fails on what's behind the tile. This collection covers that whole layer: modified and unmodified thinset mortars from TEC, Merkrete, SikaTile, and Schluter; ready-to-spread mastics; sheet and liquid waterproofing membranes; the sealers and cleaners that protect the finished surface; and the specialty adhesives that handle everything in between.

Build the Right Assembly

  • Thinset mortar — the professional bond for floors, walls, and wet areas, including LHT formulas for large-format tile.
  • Mastic — ready-to-use adhesive for backsplashes and dry walls.
  • Waterproofing — KERDI sheet systems and liquid membranes with banding, corners, and seals.
  • Sealers and cleaners — protect and maintain grout, stone, and tile.
  • Specialty glues — KERDI-FIX, board sealants, and urethane bonding.

Why Buy Setting Materials from Tile Outlets of America

Buy the mortar, membrane, and finish products as one matched system with the tile they support — 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.

Related Flooring Categories

Porcelain Tile — The Toughest Tile You Can Buy Flooring

Frequently Asked Questions

What do I actually need to install tile in a shower?
From the wall out: backer board or membrane-ready substrate, waterproofing (sheet or liquid) with banded seams, thinset mortar rated for wet areas, tile, grout, and color-matched caulk at the changes of plane. A sealer protects the finished grout and any stone.
Which thinset should I buy if I'm not sure?
A quality polymer-modified thinset covers most tile-over-most-substrate situations. Move to an LHT version for tile 15 inches and up, and to unmodified only where a membrane manufacturer requires it.
Do sealers and cleaners really matter?
Yes — sealing cement grout and natural stone is what keeps them from staining, and using pH-appropriate cleaners is what keeps sealers working. The maintenance products protect the labor you just paid for.

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