Custom Building Products FlexBond White 50 lb. Crack Prevention Mortar-FBW50 at The Home Depot

Custom Building Products

Model # FBW50

Internet # 100161308

Store SKU # 373194

FlexBond White 50 lb. Crack Prevention Mortar

Custom Building Products FlexBond White 50 lb. Crack Prevention Mortar

This item has been discontinued.
The Home Depot no longer carries this specific product.

$31.47 / each
Bulk Price Discount Available
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if you purchase at least 10 units. The
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Model # FBW50

Internet # 100161308

Store SKU # 373194

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

California residents: seeProposition 65 information

  • Isolates cracks to 1/16 in. and can be applied over cracks to 1/16 in. without additional preparation
  • Add water and mix to apply
  • Covers up to 100 sq. ft.
  • Dries in 24 hours
  • Exceeds ANSI A118.4 and A118.11 specifications
  • Resists mold and mildew
  • Qualifies for a lifetime system warranty

Info & Guides

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Additive required  Water  Assembled Depth (in.)  18 in 
Assembled Height (in.)  3.25 in  Assembled Width (in.)  15 in 
Color Family  Whites  Commercial / Residential  Commercial / Residential 
Dry time (hours)  24  Floor/wall use  Floor and wall 
Indoor/Outdoor  Indoor/Outdoor  Manufacturer Warranty  1 year product 
Maximum coverage area (sq. ft.)  100  Mold and mildew resistant  Yes 
Product Weight (lb.)  50 lb  Product type  Mortar 
Returnable  90-Day 


Rated 4.7 out of 5 by 10 reviewers.
Rated 5 out of 5 by Great mortar! This thin set was very easy to spread and mix (some calculation is required for smaller batches). I did have 1 or 2 tiles break, but I didn't spread enough mortar on an uneven floor. When I added more mortar and a fresh tile it worked great! I feel the floor is very sturdy now. Only time will tell if the mortar helps prevent cracks. September 30, 2014
Rated 5 out of 5 by Flexbond Easy to use, if you followed the instructions. Used 1 cup of Flexbond and 6oz of water and I was able to stir without drill mixer. This allowed me to set about 5 tiles that were 12 x12. If you don't use quickly then it sets pretty quick in your container. June 3, 2014
Rated 4 out of 5 by good stuff does not rip rub or tear slip slap or slide or stink when it gets old. August 5, 2014
Rated 5 out of 5 by Product bonds extremely well and holds up with traffic; no cracks The product has held up extremely well over time. The floor tiles have shown no cracks, which is pretty amazing considering the kitchen is 15' x 20+' including the hallway. July 29, 2014
Rated 5 out of 5 by Would use again and again and ....... I had never used thin-set before and would use this again for any future project. I cheated and buttered the tile instead of putting it on the wall first because the backer board would suck the moister out, greatly lessening the working time. May not be the way a pro would do it, but I could work in a less hurried pace reducing wasted mortar. I think it was justified to pay a premium $$$ over regular thin-set. July 19, 2012
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