★★★★★
Fixed a crack like new!
Good product! Worked great to fix a crack in our foundation.
Melissa W. · August 13, 2026
Landscape, Concrete & Roof
Concrete & Mortar Repair Adhesive, 10.3 oz
10.3 oz cartridge
$5.84
★★★★☆ 4.3 out of 5 · 171 ratings
The crack filler that works in the weather that made the crack. Concrete & Mortar Repair patches and seals cracks in concrete, masonry and mortar indoors and out, stands up to moisture and exposure, dries fast, takes paint so the repair disappears, and comes with a glazing nozzle for tooling the joint clean.
BondsCracks, gaps and joints in concrete, masonry, mortar, stucco and brick, interior and exterior.
Price and stock are shown on the partner store page that opens from the button.
Water resistant
Paintable
All weather
Fast drying
- Repairs and seals cracks in concrete, masonry and mortar, indoors and out
- Water-resistant, all-weather formula
- Fast drying and paintable
- Easy glazing nozzle for clean filling and tooling
- 10.3 oz cartridge
Reaches for it
Driveway and walk cracksMortar jointsStucco hairline cracksFoundation surface cracks
- Clean loose material and dust out of the crack; dry surface above 40 degrees F.
- Cut the glazing nozzle to the width of the crack.
- Fill the crack slightly proud and tool it smooth.
- Dries fast; paintable when dry.
- Full cure 24 hours; keep water off until then.
Not a structural patch; cracks wider than 1/2 in. need backer rod or mortar first.
| Size | 10.3 oz cartridge |
|---|---|
| Color | Gray |
| Finish | Paintable, top-coatable |
| Service | Interior and exterior |
| Base | Water-resistant concrete and mortar repair |
| Finish | Paintable and top-coatable |
| Service | Interior and exterior, all weather |
| Nozzle | Glazing nozzle for tooling |
| Color | Gray |
Fix the crack before winter widens it. Orders, delivery and returns run through the order page of the partner store.
From the job site
What buyers wrote about this tube
★★★★☆
Great adhesive - color match ?
This LN MORTAR adhesive works GREAT for a brick that'd dislodged from a retaining wall. The color was not a match, so I deducted a star. Oh well, at least I won't lose the custom-cut end brick :-)
Andrew H. Huntsville, AL · April 15, 2025
Questions about this tube
How wide a crack can it fill?
Up to about 1/2 in.; wider cracks get backer rod or a mortar patch first, then a bead on top.
How soon can I paint it?
Once dry to the touch, usually within a few hours in warm weather.
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