Model # 65300845

Internet #100321221

Store SKU #423086

SAKRETE 50 lb. Surface Bonding Cement in Gray


50 lb. Surface Bonding Cement in Gray

  • Used to build block walls without mortar joints
  • Can also reinforce existing masonry walls
  • High Strength 5000 PSI
$17.97 /each

Frequently Bought Together

Product Overview

SAKRETE Surface Bonding Cement is a fibered, structural coating used for concrete block and masonry walls. This Bonding Cement can be labor saving compared to conventional masonry construction, as it can be used to build block walls without mortar joints. It can also be used to decorate and damp proof existing block walls.

  • Build dry stack block walls without mortar
  • Apply decorative finish to existing masonry walls
  • Just add water, approximately 5-6 qt. per bag
  • Coverage: Approximately 35-40 sq. ft.
  • High Strength 5,000 PSI
  • Can be used for interior and exterior applications
  • Paintable
  • Learn more about concrete and cement here in our Buying Guide
  • Note: Product availability may vary by store

Info & Guides

You will need Adobe® Acrobat® Reader to view PDF documents.  Download a free copy from the Adobe Web site.




Warranty / Certifications

More Products With These Features


Customer Questions & Answers

how thick a coat can be applied?

Asked by: BW
It applied at a minimum of 1/8" up to 1/4" can be applied fairly easily. What you want to look for is sagging of the material. We would not recommend going greater than 1/2" in thickness in one lift. So anything between 1/8" to 1/2" without sagging would be acceptable.
Answered by: Sakrete Customer Care
Date published: 2016-05-14

As far as measuring coverage, does this 50 lb. bag yield about half a cubic ft. or more & is too much wetness on wall prior to applying, an issue?

Video show necessary moisture on wall prior to applying. Is it possible to have the wall too moist or wet?
Asked by: CarL
Coverage depends on thickness of skim coat, 1/8" and 1 bag will cover 50-70 sq ft. I've done a lot of block wall basements and always start with a 100% dry wall and then use a big wall paper brush to dampen wall slightly before skimming but I don't drown it. If you are damp proofing a basement 1st solve the water source problem (grading, downspouts, etc.) then dry out wall with fans and dehumidifier. Might take 2 weeks. Start with a dry wall, dampen small section at a time before skimming.
Answered by: Contractor
Date published: 2016-07-08

Can this product be applied over painted block?

Asked by: belgianbrewdog
Thanks for your question. To ensure the Surface Bonding Cement properly adheres to the block and provides stability and strength to the wall, it would not be recommended to apply it over painted block. Doing so could lessen and effect the structural integrity of the wall.
Answered by: Oldcastle Product Support
Date published: 2016-04-14

Crack in pool skimmer area

Can this be used to fix a crack on the inside of my pool skimmer where the cement meets the plastic?
Asked by: Cathy
The Surface Bonding Cement cannot be used to repair your pool. It is not a waterproofing material. You will need to check with a local pool supply company for a repair product for this project.
Answered by: Sakrete Customer Care
Date published: 2015-10-13


Can this be used to make a one inch skim coat over existing exterior masonry stairs
Asked by: Kevin
No, this material cannot be used on stairs. It does not have abrasion resistance. We do not have a product that will resurface masonry stairs.
Answered by: Sakrete Customer Care
Date published: 2016-06-30

After using on a bloack wall, can a stucco finish coat be added? Can this be used as the scratch coat?

Asked by: Eric
Yes, it can be finished with a stucco finish if you scratch the surface.
Answered by: Sakrete Customer Care
Date published: 2015-09-20

Can I get this in white instead of gray?

Asked by: dan
If it is available in white in your area, just go to the Pro Desk and see if they can order it for you.
Answered by: Sakrete Customer Care
Date published: 2016-06-01
  • y_2017, m_2, d_16, h_1CST
  • bvseo_bulk, prod_bvqa, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_7
  • loc_, sid_100321221, prod, sort_[]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 130ms

Customer Reviews

50 lb. Surface Bonding Cement in Gray is rated 5.0 out of 5 by 1.
Rated 5 out of 5 by from Works Great, Follow the Instructions! Used this to damp proof a very leaky basement, worked great BUT you must follow the directions to the letter! Buy fresh bags that are soft and pliable, hard chunks will ruin your mix. Mix in 1 bag batches in a 5 gal pail with a drywall mud mixing paddle on a high torque drill or screwgun - 1st add 3.5 qts water then half the bag and mix like crazy, then add the rest and another 2 qts water and mix until like icing on a cake or drywall mud - smooth but not soupy, a little wetter than mortar. Do NOT dump multiple bags in a mortar pan and try and mix with a hoe or shovel, you'll have a chunky unworkable mix, learned the hard way. I applied about 1/8" thick, waited 10 days after it was completely dry before painting and two years later basement is 100% dry. Used this on multiple basement projects, great solution for damp proofing but you need to solve your water source problem - grade away from house, extend downspout exits, etc.
Date published: 2016-07-07
  • y_2017, m_2, d_16, h_8
  • bvseo_bulk, prod_bvrr, vn_bulk_0.0
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_1
  • loc_, sid_100321221, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
  • clientName_homedepot
  • bvseo_sdk, java_sdk, bvseo-3.1.1
  • CLOUD, getContent, 34ms