Mortars & Grouts

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  • Ceramic Tile Adhesive

    Ceramic Tile Adhesive

    ROBERTS 5900 is a high performance, ready-to-use Type I Mastic for installing ceramic, porcelain, natural stone, quarry and mosaic tile on floors and walls. It may be used for countertop, backsplash and shower wall installations, too. It spreads effortlessly, sets quickly and is easy to clean up.


    Available Sizes:
    5900RB35U – 13.25 L / 3.5 U.S. gallon Plastic Pail
    5900RB004 – 3.78 L / 1 U.S. gallon Plastic Pail
    5900RB001 – 946 mL / 1 U.S. quart Plastic Pail
    $0.00

    Ceramic Tile Adhesive

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  • R-FLEX Polymer Modified Thinset Mortar

    R-FLEX Polymer Modified Thinset Mortar

    R-FLEX Thinset Mortar is a polymer modified, single component, Portland cement mortar for interior or exterior floor and wall installations. Use to install most ceramic, porcelain, saltillo and quarry tile.

    Available Sizes:
    1412RB25 – 11.34 kg / 25 lb. Bag (Grey)
    1412RB50 – 22.7 kg / 50 lb. Bag (Grey)
    1412WRB50 – 22.7 kg / 50 lb. Bag (White)
    $0.00

    R-FLEX Polymer Modified Thinset Mortar

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  • R-FLEX II Polymer Modified Thinset Mortar

    R-FLEX II Polymer Modified Thinset Mortar

    R-FLEX II Thinset Mortar is a polymer modified, high performance, single component, Portland cement mortar for interior or exterior floor and wall installations. Use to install most ceramic tile, quarry, porcelain, travertine, marble (except green and red) and granite tiles.

    Available Sizes:
    1414RB25 – 11.34 kg / 25 lb. Bag (Grey)
    1414RB50 – 22.7 kg / 50 lb. Bag (Grey)
    1414WRB50 – 22.7 kg / 50 lb. Bag (White)
    $0.00

    R-FLEX II Polymer Modified Thinset Mortar

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  • R-QUICK Polymer Modified Thinset Mortar

    R-QUICK Polymer Modified Thinset Mortar

    R-QUICK Thinset Mortar is a polymer modified, fast-setting, single component, Portland cement mortar for interior or exterior fl oor and wall installations. Use to install most ceramic tile, quarry, porcelain, marble (except green and red), granite and slate.

    Available Sizes:
    1418RB50 – 22.7 kg / 50 lb. Bag (Grey)
    $0.00

    R-QUICK Polymer Modified Thinset Mortar

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  • R-FLEX III Polymer Fortified Thinset Mortar

    R-FLEX III Polymer Fortified Thinset Mortar

    R-FLEX III Thinset Mortar is a polymer modified, ultra high-performance, single component, Portland cement mortar for interior or exterior fl oor and wall installations including radiant heat. Use to install most ceramic tile, quarry, porcelain, travertine, marble (except green and red), granite and slate.

    Available Sizes:
    1415RB50 – 22.7 kg / 50 lb. Bag (Grey)
    $0.00

    R-FLEX III Polymer Fortified Thinset Mortar

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  • R-MOSAIC Class Mosaic Tile Mortar

    R-MOSAIC Class Mosaic Tile Mortar

    R-QUICK is a white, single component, polymer-modified thin-set mortar for the interior floor or wall installation of glass, marble or ceramic mosaic tiles over porous substrates.

    Available Sizes:
    9419RB25 – 11.3 kg / 25 lb. Bag (White)
    9419RB10 – 4.5 kg / 10 lb. Pail (White)
    $0.00

    R-MOSAIC Class Mosaic Tile Mortar

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  • R-FLEX LFT Polymer Modified Large Format Tile Mortar

    R-FLEX LFT Polymer Modified Large Format Tile Mortar

    R-FLEX LFT is a Premium-grade, polymer-modified, cement-based mortar for large format and heavy tiles and stones (406mm (16") or larger [1 dimension] and 6mm (1/4") minimum thickness). Use to install most ceramic, porcelain, marble, travertine, granite, slate and quarry paver tiles.
    Works great with the QEP LASH® Tile Leveling System

    Available Sizes:
    1420RB50 – 22.7 kg / 50 lb. Bag (Grey)
    1420WRB50 – 22.7 kg / 50 lb. Bag (White)
    $0.00

    R-FLEX LFT Polymer Modified Large Format Tile Mortar

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  • R-MIX Non-Modified (Dry Set) Thinset Mortar

    R-MIX Non-Modified (Dry Set) Thinset Mortar

    R-MIX is a single component, Portland cement mortar for interior floor installations of low-absorption ceramic floor tile, quarry tile and pavers.

    Available Sizes:
    1401RB50 – 22.7 kg / 50 lb. Bag (Grey)
    $0.00

    R-MIX Non-Modified (Dry Set) Thinset Mortar

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  • R-BOND Non-Modified (Dry Set) Thinset Mortar

    R-BOND Non-Modified (Dry Set) Thinset Mortar

    R-BOND is a single component, Portland cement mortar for interior floor and wall installations of most ceramic tile. When mixed with 1411 R-Bond Acrylic Additive it permits exterior applications of ceramic, porcelain, marble and granite over many substrates.

    Available Sizes:
    1401RB50 – 22.7 kg / 50 lb. Bag (Grey)
    $0.00

    R-BOND Non-Modified (Dry Set) Thinset Mortar

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  • R-BOND Acrylic Additive

    R-BOND Acrylic Additive

    R-BOND Acrylic Additive is a high performance, polymer modified, additive intended to be used instead of water with Roberts thinset mortars. Specially designed to attain superior bond strength, with the capability of bonding to more demanding and unconventional substrates. Also used to prime gypsum wall board prior to thinset application.

    Available Sizes:
    1411RB6.3 – 6.3 L / 1.66 U.S. Gallon Bottle
    $0.00

    R-BOND Acrylic Additive

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  • GROUT COMPLETE

    GROUT COMPLETE

    GROUT COMPLETE is a one-part component premium grout additive for stain resistance. Mixes with grout IN PLACE OF WATER, for an integrated seal, creating a harder, denser, stain resistant grout. This penetrating treatment will not change appearance or adhesion properties. When used properly, 1431 Grout Complete forms a lifetime seal, and never requires re-application. This mildew and fungus resistant seal also provides a reduction in water absorption, which reduces cracking due to freeze-thaw and efflorescence.

    Available Sizes:
    1431SRB600 – 600 mL / 20 oz. Bottle (for Sanded Grout)
    1431SRB002 – 2.07 L / 70 oz. Bottle (for Sanded Grout)
    1431URB001 – 1.03 L / 35 oz. Bottle (for Unsanded Grout)
    1431URB004 – 3.73 L / 126 oz. Bottle (for Unsanded Grout)
    $0.00

    GROUT COMPLETE

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  • R-GROUT Sanded Grout

    R-GROUT Sanded Grout

    R-GROUT is a polymer modified Sanded Grout for ceramic floor tiles. Requiring only water for the mix, this rapid curing, non-toxic, non-dusting, iron free grout is resistant to bacteria, fungus, oils and alkalis. Use on residential/commercial, interior/exterior floors and countertops.

    Available Sizes:
    1430RB44 – 1.8 kg / 4 lb. Box
    1430RB7 – 3.2 kg / 7 lb. Box
    1430RB25 – 11.34 kg / 25 lb. Bag
    $0.00

    R-GROUT Sanded Grout

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  • R-GROUT Unsanded Grout

    R-GROUT Unsanded Grout

    R-GROUT is a polymer modified Unsanded Grout for ceramic wall tiles. Requiring only water for the mix, this rapid curing, non-toxic, non-dusting, iron free grout is resistant to bacteria, fungus, oils and alkalis. Use on residential or commercial, interior or exterior walls.

    Available Sizes:
    1432RB44 – 1.8 kg / 4 lb. Box
    1432RB7 – 3.2 kg / 7 lb. Box
    1432RB25 – 11.34 kg / 25 lb. Bag
    $0.00

    R-GROUT Unsanded Grout

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  • R-LEVEL Polymer Modified Self-Leveling Underlayment

    R-LEVEL Polymer Modified Self-Leveling Underlayment

    R-LEVEL is made for leveling substrates that are structurally designed for the added weight of a self-leveling underlayment.

    Available Sizes:
    1416RB50 – 22.7 kg / 50 lb. Bag (Grey)
    $0.00

    R-LEVEL Polymer Modified Self-Leveling Underlayment

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  • R-PATCH Polymer Modified Cement Floor Patch

    R-PATCH Polymer Modified Cement Floor Patch

    R-Patch, when blended with water, is designed to fill holes, voids and depressions up to 12mm (1/2") thick. Designed for interior use this cement-based patch is compatible with all types of ceramic, carpet and resilient adhesives 90 minutes after installation.

    Available Sizes:
    1445RB22 – 10 kg / 22 lb. Bag
    1445RB4.4 – 2 kg / 4.4 lb. Pail
    $0.00

    R-PATCH Polymer Modified Cement Floor Patch

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  • Acrylic Admixture

    Acrylic Admixture

    A high performance additive when substituted for water that significantly increases the performance and scope of ROBERTS 1445 R-Patch. Use with 1445 R-Patch as an embossing leveler or patch and is compatible with flooring adhesives 1 hour after installation.

    Available Sizes:
    102RB004 – 3.78 L / 1 U.S. Gallon Bottle
    $0.00

    Acrylic Admixture

    $0.00
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  • R-SCRATCH Sand/Cement Mortar

    R-SCRATCH Sand/Cement Mortar

    R-SCRATCH is designed for use in conjunction with metal or plastic lath prior to the installation of ceramic, porcelain, mosaic, quarry and paver tile stones.

    Available Sizes:
    1400RB50 – 22.7 kg / 50 lb. Bag
    $0.00

    R-SCRATCH Sand/Cement Mortar

    $0.00
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