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Model CPMBP1

Internet #205486856

Store SKU #1001574672

Store SO SKU #1000643650

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

12 Questions23 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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florence az
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September 5, 2016
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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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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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Can this be used to seal a plywood floor so concret can be applied over it?

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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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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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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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Home Improvement Profile: Professional
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

Rated 5.0 out of 5 by 7 reviewers.
Rated 5.0 out of 5.0 by 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 . May 3, 2016
Rated 5.0 out of 5.0 by Great solution for sealing cutback tile adhesive, easy to apply and dries quickly As part of a bathroom remodel, we removed some old vinyl tiles and ended up with the ubiquitous black cutback tile adhesive residue on the concrete floor. After consulting with Home Depot's 'Ask a Question' feature, the reps at CBP recommended we use this to seal the floor before putting thinset and ceramic tile down. Application is very easy, just make sure the floor is clean and that the old cutback is removed down to the concrete using a wet scrape method (wet to keep any asbestos dust under control). We used a little leveling compound here and there and the primer stuck to anything equally well. Mix up the primer with a stick for 30 seconds and then paint it on the floor. We used a 3" chip brush around the edges of the floor and a 3/8" paint roller on an extension handle for the main part of the floor. Took about 15 minutes to paint an 8' x 8' bathroom and used about 30% of the bucket we bought. During application it has a slight odor which is similar to although a lot milder than CBP's RedGard waterproofing membrane product. We left it for an hour and it had dried from the bright blue it is when wet to a darker semi-transparent blue. As soon as it was dry, we started laying the floor tiles so this product certainly works quickly. Clean up was easy with water however I would recommend wearing gloves as it dries quickly and can be difficult to remove if you get it on your fingers or clothes during application. June 1, 2015
Rated 5.0 out of 5.0 by 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! February 3, 2016
Rated 5.0 out of 5.0 by 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. October 20, 2015
Rated 5.0 out of 5.0 by 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. August 11, 2015
Rated 5.0 out of 5.0 by 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. May 5, 2015
Rated 5.0 out of 5.0 by MBP I have used MBP on tile and it works great.I don't think I would use it as a sealer. April 17, 2015
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