Concrete Repair
Don’t Ignore it. reStore it.
Approximately 70% of our existing building stock is over 20 years old. As concrete and masonry facades continually crack and spall, we cannot ignore the safety risk these aging structures impose. Sto offers a variety of reliable, tested concrete repair solutions to assist with your restoration needs.
Sto Concrete Repair Mortars
Sto Concrete Repair Mortars are designed for superior performance utilizing unique blends of polymers, corrosion inhibitors, microfiber-reinforcement and more. Compatible with all Sto Finishes and Coatings, use Sto Concrete Repair Mortars to provide a complete restoration solution that offers design freedom in aesthetics.
Application Thickness Guide
FE* | 1/8″ | 1/4″ | 1/2″ | 1″ | 2″ | 3″ | 4″ | Full |
* FE = Featheredge
Additional Concrete Repair Products
Sto Leveler & Skim Coat
Sto Leveler & Skim Coat is a polymer-modified, cement-based, fiber-reinforced repair mortar used to patch, level and re-pitch irregular horizontal and vertical concrete, masonry and plaster/ stucco surfaces.


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Sto Wall Leveler & Patch
Sto Wall Leveler & Patch is a single component, polymer-modified, cement-based mortar for leveling and patching concrete and CMU. Use on vertical walls for repairs from 1/8 to 2 inches (3 to 50 mm) or apply it in lifts to maximum 3 inch (76.2 mm) thickness.


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Sto Overhead Mortar CI
Sto Overhead Mortar with integral corrosion inhibitor is a single component, polymer-modified, cement-based mortar for structurally repairing deteriorated concrete and masonry. Use on vertical or overhead surfaces.


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Sto Full-Depth Mortar with CI
Sto Full-Depth Repair Mortar with CI is a single component portland cement-based repair material for structurally repairing or overlaying deteriorated concrete. The product can be used for horizontal or vertical/overhead form & pump and form & pour applications.


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Sto Full-Depth
Sto Full-Depth is a single-component cement-based repair material for structurally repairing or overlaying deteriorated concrete. The product can be used for horizontal or vertical/overhead form & pump and form & pour applications.


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Sto Full-Depth Plus
Sto Full-Depth Plus, with integral corrosion inhibitor, is a single-component cement-based repair material for structurally repairing or overlaying deteriorated concrete. The product can be used for horizontal or vertical/overhead form & pump and form & pour applications.


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Additional Concrete Repair Products
Sto Bonding & Anti-Corrosion Agent
Sto Bonding and Anti-Corrosion Agent is a unique combination of Portland cement, microsilica, epoxy, and acrylic resin. Use it for bonding new concrete or mortar to old and for protecting reinforcing steel against rust and corrosion. When used as a bonding agent, it provides up to a 24-hour open time.
Sto Flexible Crack Filler
Sto Flexible Crack Filler is an acrylic-based, non-sag crack filler for sealing and weatherproofing cracks. Use it to fill hairline cracks in vertical concrete, stucco or masonry block surfaces. Its convenient cartridge packaging provides a fast way to fill cracks, up to 1?8 inch (3.2 mm) wide.