Ratings may include incentivized customer reviews.
What Customers Are Saying
Customers overwhelmingly praise this product for exceptional bonding on challenging surfaces like existing tile, linoleum, and concrete without requiring removal. Most report successful tile-over-tile installations in kitchens and bathrooms, with the bond becoming nearly impossible to scrape after two days. Many appreciate its easy application via brush, roller, or sprayer, quick drying, and water-based cleanup. Reviewers confirm long-term durability in high-moisture areas like showers, with installations remaining water-tight over a year later. A few noted inconsistent texture or difficulty opening containers, and some questioned pricing. Overall, customers consider it a reliable solution for renovation projects.
Customer review summary generated by AI, including incentivized reviews.Leaking container
Would Not RecommendI would have given this product a 5 star review on the 1/4 gal I used to prime a floor for tiling, if the bottom of the container hadn't split open covering parts of my indoor patio, that was partially covered with a canvass drop cloth, in gray primer. I just ran to get a plastic garbage bag to throw the rest into and trashed it in a dumpster with out taking a photo. Just wondering if there were more of these defective containers out there.
Verified Purchaser
Good primer
Would RecommendIt seems to work really well, now if it works well for painting over
Verified Purchaser
Amazing bond
Would RecommendThis product will bond to just about anything. I put it on top of existing tile and after about 30 minutes I couldn't even scrape it off. It is gritty so it provides a good surface for thin set. I wish they made this product without sand in it because the bonding is amazing. It cleans up easily with water.
Verified PurchaserVerified Pro
great stuff
Would RecommendGreat for installing New Tiles over existing old tile without removing old tile. Or having to sand old tile first.
Verified PurchaserSweepstakes
Eco Prime
Would RecommendThis product works well. I install micro finish on walls and floors. I put it through the test with a sample board I used which was a 24x24 piece of tile and it passed the test for up to 3 months. I used it on one of my jobs and it works awesome. In order for this to work there is a curing stage, if applied and the same day you scrape it, it will come off. Once you apply it and you give it 2 days it will have an excellent bond.
Verified PurchaserSweepstakes
A NEEDED PRODUCT
Would RecommendWill be used in my bathroom where demo of concrete floor is too intensive and will tile over with ceramic.
Verified PurchaserSweepstakes
Super product.
Would RecommendI used this as a primer for a tile over tile installation and it worked great.
Verified PurchaserSweepstakes
Linoleum to Large Format Luxury Vinyl Tile
Would RecommendWe recently went from 20 year old linoleum to large format LVT (18x36) on around 600 sqft of concrete slab. The slab did not meet the tile specifications for flatness. We stripped the linoleum using a electric floor stripper. This left glue residue and a shiny surface. After a lot of research we chose the Mapei ECO Prime primer prior to using the Mapei Self Leveler Plus. This product provides great adhesion and fine grit for the self leveling material. The overall result was fantastic and the cl...
Verified PurchaserSweepstakes
Great primer!
Would RecommendUsed this primer on my existing tile backsplash to lay new tile over the existing tile. The primer stick really good and allowed for great adhesion of the mortar.
Verified PurchaserSweepstakes
Never been happier with a grout.
Would RecommendIt is stunning and very easy to use. Lowes promised a delivery date if was on time. Very satisfied@
Verified PurchaserSweepstakes
Works good over cutback and carpet adhesive!
Would RecommendI had some old carpet and 9x9 vinyl tiles in my basement that I removed during demo and used this product to prep the concrete for Self Leveling Underlayment. It bonded really well to the old adhesives. You MUST scrape as much of the old adhesive first, down to a real thin residue (i.e: hands and knees, no trowel ridges left to the touch) and then I used TSP to wash the floors of any surface contaminants before i applied this. Apply Eco Prim with a 3/8 nap roller and you're good to go. Well ...
Sweepstakes
awesome stuff
Would Recommendused to tile over existing tile! worked great!! wish it came in smaller sizes though.
Verified PurchaserSweepstakes
Tiled over existing tile backsplash
Would RecommendAfter watching a YouTube instructional video, I used this product to tile over an existing kitchen backsplash. It turned out beautifully. It was so easy to use.
Verified PurchaserSweepstakes
Nice product
Would RecommendGreat product for tile over tile jobs, easy to use. Creates a good bond for thin sets and mortar
Verified PurchaserSweepstakes

Thank you for your feedback regarding MAPEI Products! Mapei recommends bringing the unused portion and broken container back to the Lowes location wh... Read More