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NEW Sto Fireblocking Solution to Meet 2022 New York City Building Code

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.

The Sto Comprehensive Repair Guide

With Sto‘s Comprehensive Repair Guide, 30 of the most common problems affecting EIFS, stucco, concrete and masonry are addressed with step-by-step illustrated solutions.

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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

Sto Leveler & Skim Coat
Sto Wall Leveler & Patch
Sto Overhead Mortar CI
Sto Full-Depth
Sto Full-Depth Plus

Additional Concrete Repair Products

Sto Bonding & Anti-Corrosion Agent
Sto Flexible Crack Filler

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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FEATURES

Wide range of application – Tilt-up panels, CMU, cast-in-place, precast

Fiber-reinforced – resists shrinkage cracks; Improves flexural strength

Polymer-Modified – Increases durability; excellent adhesion

Featheredge – Excellent for re-pitching/re-sloping balconies and drainage areas

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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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FEATURES

Non-sag, Low Slump – Apply up to 2 inches (50 mm) in one lift on vertical surfaces; increases job-site productivity

Polymer-Modified – Increases durability; excellent adhesion

Freeze/Thaw Durability – Suitable for any climate

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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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FEATURES

Non-sag, Low Slump – Perform vertical and overhead repairs without the need for formwork

Polymer-Modified – Increases durability; excellent adhesion

Freeze/Thaw Durability – Suitable for any climate

Contains an integral corrosion inhibitor – Strengthens passive layer on reinforcing steel, protecting from corrosion

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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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FEATURES

Pre-Extended – Ensures quality aggregate. Pre-measured extension increases job productivity

One Component – Ready to use; pumpable; easily mixed with water on the jobsite; no chemical jugs to dispose

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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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FEATURES

Pre-Extended – Ensures quality aggregate. Pre-measured extension increases job productivity

One Component – Ready to use; pumpable; easily mixed with water on the jobsite; no chemical jugs to dispose

Freeze/Thaw Durability – Suitable for any climate

Contains an integral corrosion inhibitor – Strengthens passive layer on reinforcing steel, protecting from corrosion

Very Low Shrinkage – Stable bond line; resists perimeter cracking

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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.

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FEATURES

Two Components / Field Batched – Easy to follow mixing instructions, no waste

24-Hour Open Time – Work schedule flexibility, great for formed and shotcrete repairs

Sprayable – Easy to apply, faster application time

Microsilica-enhanced – Increased strength and density to protect steel against corrosion

Epoxy, acrylic-based – Excellent bond to concrete and steel

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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.

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FEATURES

Flexible – Accommodates substrate movements; does not age harden

Non-Sag Consistency – Hangs vertically without sagging; tools easily

Convenient Cartridge Packaging – Easy to apply; no mixing required

Cleans Up with Water – Tools can be reused; no hazardous solvents needed

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