Model # CPMBP1

Internet #205486856

Store SKU #1001574672

Store SO SKU #1000643650

Custom Building Products MBP - Multi-Surface Bonding Primer 1 Gal.
0010186226408

Custom Building Products

MBP - Multi-Surface Bonding Primer 1 Gal.

$38.97 /each

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Product Overview

Multi-Surface Bonding Primer (MBP) is a single-component, water-based primer engineered to deliver superior adhesion on a variety of substrates. Works exceptionally well on substrates where proper bonding is difficult. Specially formulated with aggregates and polymers to promote mechanical adhesion on non-porous substrates.

California residents: see   Proposition 65 information

  • Ready-to-use primer
  • For use on porous and non-porous surfaces
  • 1-coat application
  • No shot blasting or abrasion required
  • Prepares surface with a textured finish
  • Suitable for installation with modified cement mortar and self-leveling underlayment's

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Customer Questions & Answers

13 Questions24 Answers

Customer Questions & Answers

MBP - Multi-Surface Bonding Primer 1 Gal.
MBP - Multi-Surface Bonding Primer 1 Gal.

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3 answers

can this be applied over painted drywall before tiling.

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Asked by
florence az
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September 5, 2016
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Answers (3)

Asked by
Saginaw, MI
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September 6, 2016
Answer: 
I wouldn't use it over a painted surface
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Asked by
Saginaw, MI
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September 6, 2016
Answer: 
I would not suggest that you use this over painted walls. The paint will crack and let loose and ruin your seal job, and that is not worth it.
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September 6, 2016
Answer: 
Yes, provided the paint is well bonded to the substrate. The painted surface should be thoroughly cleaned to remove any contaminants that would interfere with the bond. Remember, the bond of the tile assembly will only be as good as the bond of the paint to the substrate. For further assistance please contact our installation division at 800.272.8786 option 2
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3 answers

Can this be used to seal a plywood floor so concret can be applied over it?

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Asked by
Jacksonville, Fla.
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May 21, 2016
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Asked by
Saginaw, MI
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June 28, 2016
Answer: 
I think the instruction tells you not to use on wood, like luana.
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May 23, 2016
Answer: 
MBP Multi-Surface Bonding Primer may be applied over Exterior Grade Plywood in interior dry areas. MBP Prepares surface with a textured finish that is suitable for installation with modified cement mortar and self-leveling underlayments. For further assistance please contact our installation division at 800.272.8786 option 2
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May 22, 2016
Answer: 
This product can be used on exterior grade plywood and OSB (interior only).
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2 answers

Can this product be used to prime kitchen cabinets?

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September 4, 2016
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Asked by
Saginaw, MI
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September 6, 2016
Answer: 
This is expensive to use as a paint/stain primer. I wouldn't do it. It's really a water sealing tool.
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September 4, 2016
Answer: 
This can be used on all porous and non-porous surfaces.
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2 answers

Can I use this ove a painted basement floor before using a skimcoat

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July 28, 2016
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Asked by
Saginaw, MI
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September 6, 2016
Answer: 
I would not use it over a painted surface.
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July 29, 2016
Answer: 
Yes, provided the paint is well bonded to the substrate. The painted surface should be thoroughly cleaned to remove any contaminants that would interfere with the bond. The bond of the tile assembly will only be as good as the bond of the paint to the substrate. For further assistance please contact our installation division at 800.272.8786 option 2
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Customer Reviews

MBP - Multi-Surface Bonding Primer 1 Gal. is rated 4.6 out of 5 by 9.
Rated 5 out of 5 by from Absolutely great I had to take up an old vinyl tile floor to put down a ceramic tile . Under the old floor was a black sticky mastic . I called the flex bond thinset 800 number to ask if it would adhere to that surface . The rep said it wouldnt and advised to use this MBP primer . I ordered 2 gallons that was shipped to my home . It went on easily with a brush , dried to a smooth surface . It was even easy to clean the brush with soap and water . It even smells good . Indespensible to use on any problem surface .
Date published: 2016-05-03
Rated 1 out of 5 by from Useless Pealed and didn't stick at all. Had to buy something else
Date published: 2016-11-01
Rated 5 out of 5 by from Should sell in quarts not only gallon buckets Should sell in quarts not only gallon buckets
Date published: 2016-12-09
Rated 5 out of 5 by from Excellent Product roduct (MBP) permitted new tile to be set over old glossy tile. Apply MBP over the old tile with a paint roller, wait one hour or so until dry, apply masonry mastic (Flexbond, for example) and then set the new tile. The paint roller application of MBP creates a rough surface that establishes a good (rough) mechanical bond. I searched on the internet a long time before finding this product. I’m happy Home Depot makes it available.
Date published: 2015-05-05
Rated 5 out of 5 by from Lifesaver! Where have you been all my life! Took up glued down wood flooring on concrete and even after scraping the mastic a film remained. Thought I would have to grind or use adhesive remover, but found this wonderful product and it is great! Two thin coats and ready for tile. Tile adhered like a champ. It saved tons of time and money. Love it!
Date published: 2016-02-03
Rated 5 out of 5 by from Perfect for old vinyl tile The front entry way of my 1947 house had vinyl tile that was glued down with asbestos mastic. I decided tiling over it would be best. This bonding primer did an excellent job in one coat. I was applying thinset 2 hr after I rolled on the primer. The thinset really stick to the rough surface of the primer. I'm so glad I found this product.
Date published: 2015-10-20
Rated 5 out of 5 by from Perfect for creating a bonding surface I removed self-stick vinyl tiles applied to a concrete floor so I could install porcelain tile. After removing the vinyl, there was a very thin, tacky layer of adhesive left on the concrete that I could not remove by scraping or with adhesive removers. The only other alternative for prepping the concrete for the new tile seemed to be grinding it. But this product covered and adhered to the adhesive layer well with very little effort and provided a very good base for tiling.
Date published: 2015-08-11
Rated 5 out of 5 by from MBP I have used MBP on tile and it works great.I don't think I would use it as a sealer.
Date published: 2015-04-17
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