Custom Building Products FlexBond Gray 50 lb. Fortified Thin-Set Mortar-FB50 at The Home Depot
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Custom Building Products

Model # FB50

Internet # 100122448

Store SKU # 839531

FlexBond Gray 50 lb. Fortified Thin-Set Mortar

Custom Building Products FlexBond Gray 50 lb. Fortified Thin-Set Mortar

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

$29.47 / each
Item cannot be shipped to the following state(s): AK,GU,HI,PR,VI


Model # FB50

Internet # 100122448

Store SKU # 839531

This Custom Building Products FlexBond 50 lb. 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.

California residents: seeProposition 65 information

  • Suitable substrates include interior and exterior floors, countertops and walls
  • Can tile directly over cracks up to 1/16 in. without repairs
  • Suitable tile types also include natural stone, brick and thin brick
  • Exceeds ANSI A118.4 and A118.11 standards without the need for additives
  • Dries in 24 hours
  • 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  Grays  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 4.8 out of 5 by 13 reviewers.
Rated 5 out of 5 by very easy to use This mortar mixes and spreads easily. Very easy to use and worked great for us. April 8, 2014
Rated 5 out of 5 by the best This is some sticky stuff. Fantastic for walls and floors. March 4, 2014
Rated 5 out of 5 by Good stuff Thinset what cin I say not fun to use but it works great July 22, 2014
Rated 5 out of 5 by Flexbond Mortar The only product I use when laying Tile. Never have to return for loose tile. September 2, 2014
Rated 4 out of 5 by 1st time user this was very user friendly, will use again and recommend this to family and friends. June 26, 2014
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