#1 Home Improvement Retailer

Internet # 100161308

Model # FBW50

Store SKU # 373194

FlexBond 50 lb. White Premium Crack Prevention Thinset Mortar

$42.27
Apply Now
Pay $17.27 after $25 OFF your total qualifying purchase upon opening a new card. info
Apply for a Home Depot Consumer Card
  • High flexibility to prevent cracks in tile
  • Excellent bond strengths
  • Outstanding bond to glass, metal and other decorative tile
  • View More Details
Store
0 in stock
icon
Free & Easy Returns In Store or Online
Return this item within 90 days of purchase. Read Return Policy
caret
Product Details
  • High flexibility to prevent cracks in tile
  • Excellent bond strengths
  • Outstanding bond to glass, metal and other decorative tile
About This Product

This Custom Building Products FlexBond 50 lbs. Fortified Thin-Set Mortar is a premium-quality, polymer-modified mortar with exceptional flexibility and bond strength. FlexBond is perfect for tiling difficult surfaces, such as plywood, vinyl and laminates and for hard to bond non-porous tile such as porcelain and glass. FlexBond protects against cracking caused by minor in-plane surface movement.

  • For use over concrete, cement backerboards, drywall, exterior grade plywood, existing ceramic tile, vinyl flooring and plastic laminates
  • Can tile directly over cracks up to 1/16 in. without repairs
  • Add water and mix to apply
  • Covers up to 95 sq. ft. depending on installation practices and jobsite conditions
  • Allow 24 hours before grouting and light traffic. Allow 7-10 days before heavy or vehicular traffic.
  • Exceeds ANSI A118.4 and A118.11 specifications
  • Resists mold and mildew
  • Qualifies for a lifetime system warranty
  • Add water and mix to apply
  • For indoor or outdoor applications
  • Can be used in wet areas, including showers
  • Flexes up to 1/16 in. to help prevent cracking
  • Interested in purchasing a pallet? Buy 20
  • Return Policy
  • California residents
     see Prop 65 WARNINGS
Product ID #: 100161308Internet #: 010186412849Model #: FBW50
caret

Specifications

Dimensions

Maximum Coverage Area (sq. ft.)95 sq ftProduct Width (in.)15 in

Details

Additive requiredWaterColor FamilyWhite
Commercial / ResidentialCommercial / ResidentialDry time (hours)24
Flooring Material FeaturesCrack resistant, Moisture resistantFlooring Product TypeFlooring Powder Mortar
Flooring TypeCement, Ceramic, Concrete, Glass, Porcelain, Stone, TileIndoor/OutdoorIndoor/Outdoor
LocationBasement, Bathroom, Countertop, Exterior wall, Floor, Interior wall, Kitchen BacksplashProduct typeMortar
Product Weight (lb.)50 lbQuantity1
Returnable90-Day

Warranty / Certifications

Manufacturer WarrantyLifetime system warranty
caret

Questions & Answers

285Questions
caret
Q:Can it be used on painted concrete
by|Feb 7, 2024
1 Answer
Answer This Question

A:  FlexBond Premium Crack Prevention Thin-Set Mortar is not suitable for use over painted concrete. For further assistance please contact us at 1 800 282 8786 option 2.

by|Feb 7, 2024
    caret
    Q:Is this thinset suitable for verticle tile installation on shower walls and ceiling? The tiles are 3 in. x 12 in. x 8 mm Polished Ceramic Subway Wall Tile.
    by|Feb 4, 2024
    1 Answer
    Answer This Question

    A:  FlexBond Premium Crack Prevention Thin-Set Mortar is suitable for use in this application. For further assistance please contact us at 1 800 282 8786 option 2.

    by|Feb 5, 2024
      caret
      Q:Can you use over plywood
      by|Jan 31, 2024
      1 Answer
      Answer This Question

      A:  FlexBond Premium Crack Prevention Thin-Set Mortar is suitable for use over Exterior Grade Plywood in interior dry areas. For further assistance please contact us at 1 800 282 8786 option 2.

      by|Feb 1, 2024
        caret
        Q:I use this product on the new house. But the temperature of the house went down to 42� at night because there was no heat in there yet will it be okay? And can I put some heaters in there the next day to dry it quicker
        by|Jan 25, 2024
        1 Answer
        Answer This Question

        A:  FlexBond Premium Crack Prevention Thin-Set Mortar requires a minimum of 50 degrees for the first 72 hours to ensure proper bond. For further assistance please contact us at 1 800 282 8786 option 2.

        by|Jan 25, 2024
          Showing 1-4 of 285
          caret

          Customer Reviews

          4.7 out of 5
          • 4.7 out of 702 reviews
          • 92% recommend this product
          Filter by:
          Showing 1-10 of 702 reviews
          I didn’t do the install myself but we had just a few small cracks after everything dried. We used this mortar for thin brick flooring set in a herringbone pattern.
          by
          • Verified Purchase
          It says fast set online but not on the bag. Working time says 4hrs but we had maybe an hr before it hardened up and made it unusable. Wasted 29 bucks worth of tile and made a mess. Do not recommend
          by
          • Verified Purchase
          1 found this review helpful
          Use it trust me worth the money
          Great no sag product for maximum adhesion to wall surface
          by
          • Verified Purchase
          • Recommended
          Given its description I was under the impression I could use it as a waterproof coating for an in...
          Given its description I was under the impression I could use it as a waterproof coating for an inground pool with the intention of overcoating it with a waterproof paint. After parging the walls and bottom of the pool this stuff started developing surface cracks as it dried.
          by
          • Verified Purchase
          2 found this review helpful
          First time with tile DIYer March 2021
          I used 6 1/2" Daltile Titanium tiles in my alcove bath. I used aqua defense over cement board. I made small batches, which made all the difference, of the thin set to a paste consistency. 1/4" trowel. 1/8" spacers. Cleans well off of the tile. Sets in 24 hours but I needed to pop out a few tiles and it didn't ruin the cement board. Backbuttered all tiles. It's working out great! But I don't have anything else to compare it to but I'm a fan.
          by
            • Recommended
            excellent mortar
            This has been may go-to mortar for my recent bathroom renovation to secure cement board and then tile. It came highly endorsed by the manufacturer of the cement board. My only critique would be that it was challenging to mix the entire bag and use up quickly before drying. I learned after the first blunder to mix half the bag at a time to have a better mixed batch and prevent drying. Will use again!
            by
              • Recommended
              Using it to install glass Wall shower tile and mosaic stone floor tiles. Worked perfectly.
              Using it to install glass Wall shower tile and mosaic stone floor tiles. Worked perfectly.
              by
              • DIY
              • Verified Purchase
              • Recommended
              We are not a pros, so we do not have a lot of experience with placing glass tile, however, we hav...
              We are not a pros, so we do not have a lot of experience with placing glass tile, however, we have learned a lot, and the FlexBond is only thinset we've found for large format glass tile. My wife and I are putting glass tile in two showers, over a waterproof membrane, which has the potential to create a lot of issues for modified thinset. We began by troweling on a smooth layer, covering all of the walls with the Flexbond and letting that dry. Then smoothing any rough spots we made with the trowel. We did not sand it, but smoothed the rough spots by scraping with a putty knife. Then we had a porous surface to which the glass could be adhered. we used a v notch trowel (recommended by the tile manufacturer) to apply the FlexBond over the dried FlexBond surface. We combed it straight vertically, one course at a time. We also back buttered the glass tiles with FlexBond so we achieved 100% coverage on our tiles. This worked very well. We have placed as many as 10 courses without stopping, and have had no wet weight release or movement issues. We also have tried to remove a dried tile, which would have resulted in destroying the tile and or wall, so we know the bond is very good. After the FlexBond dried (usually the next day) it cleans off of the tile effortlessly. Which is likely why it's hard to find a good thinset for glass tile. The thinset will not stick to the front of the glass tile no matter what, but it will stick to the painted back very well. And it is sanded, but we have had no scratching of the tile when cleaning off the thinset. Cleaning out the grout lines is also quite easy with a linoleum knife. But do this the next day. The longer you wait, the harder it gets. After having done considerable research, and tiling, we believe this is a great product. It has performed very well. Time will tell. If you are placing large format glass tile, don't hesitate to use this product. So far, I have no negative comments, only positive.
              by
              • Verified Purchase
              • Recommended
              8 found this review helpful
              If I'm going to work on my house, I like to use the best available products (within reason) so I ...
              If I'm going to work on my house, I like to use the best available products (within reason) so I don't have issues with it in the future. That's why I chose this Fexbond product. It was easy to use on my mosaic tile. What little bit that got on the top of the tiles was easy to clean off, even after it had dried.
              by
              • DIY
              • Verified Purchase
              • Recommended
              This product was easy to mix and use, causing my tile installation to go smoothly. The powder ro...
              This product was easy to mix and use, causing my tile installation to go smoothly. The powder room looks great after the project was completed. I would recommend this product for tile in different areas.
              by
              • Verified Purchase
              • Recommended
              Showing 1-10 of 702 reviews

              Compare Similar Items

              current item

              Location

              Basement, Bathroom, Countertop, Exterior wall, Floor, Interior wall, Kitchen Backsplash

              Basement, Bathroom, Countertop, Exterior wall, Floor, Interior wall, Kitchen Backsplash, Shower, Swimming pool, Tub surround

              Basement, Bathroom, Countertop, Exterior wall, Floor, Interior wall, Kitchen Backsplash, Shower, Swimming pool, Tub surround

              Basement, Bathroom, Countertop, Exterior wall, Floor, Interior wall, Kitchen Backsplash, Shower, Swimming pool, Tub surround

              Product type

              Mortar

              Large format tile mortar

              Large format tile mortar

              Large format tile mortar

              Flooring Material Features

              Crack resistant, Moisture resistant

              Crack resistant, Mold/mildew resistant

              Fast-drying, Moisture resistant, Rapid setting, Waterproof

              Crack resistant, Moisture resistant, Waterproof

              Maximum Coverage Area (sq. ft.)

              95 sq ft

              100 sq ft

              100 sq ft

              100 sq ft