Key Features
Structural Concrete Repair This Simpson Strong-Tie CIGV32 CI-GV Structural Injection Epoxy Gel is made for pressure injection crack repair in concrete. It chemically bonds to the concrete so the repair is not just cosmetic. Flows Under Pressure The gel viscosity stays where you need it, then thins under injection pressure for better penetration into medium-width cracks. That helps fill the repair area without running out on vertical work. Works on Damp Surfaces CI-GV is moisture-tolerant and can be used on dry or damp concrete. That gives you more flexibility on real repair jobs where the crack is not perfectly dry.
Overview
The Simpson Strong-Tie CIGV32 CI-GV Structural Injection Epoxy Gel is a two-component structural injection epoxy for concrete crack repair. This is a structural injection epoxy designed for pressure injection of concrete cracks in vertical and horizontal applications. Model Number: CIGV32. If you are repairing medium cracks in concrete and need a product that bonds to the base material instead of just covering the surface, this is the right category of repair material.
CI-GV is built for cracks from 3/32 inch to 1/4 inch wide, which puts it in the range for many common structural crack repair jobs in walls, slabs, and other concrete sections. The gel viscosity matters here because it helps the material stay controlled during application, especially on vertical surfaces, while still decreasing in viscosity under pressure for better flow into the crack. In plain terms, it is easier to inject where you want it, and it penetrates better once pressure is applied.
This epoxy is formulated to chemically bond with concrete to create a structural repair. That is the big difference between a true injection epoxy and a basic surface sealer. It is also non-shrink, so you are not fighting pullback after cure, and it resists oils, salts, mild chemicals, and freeze-thaw exposure. For repair work in garages, commercial spaces, exterior concrete, and other demanding environments, those details matter because the patch needs to hold up after the job is done.
The moisture-tolerant formula gives this product more jobsite flexibility than repair materials that demand perfectly dry conditions. It can be used on dry and damp surfaces, which is useful when you are dealing with real-world concrete that has not fully dried out. CI-GV also helps seal the crack from moisture, which can help protect embedded rebar from corrosion over time.
The 32 fl. oz. dual-cartridge format is set up for use with a static mixing nozzle, and this CIGV32 version includes the EMNO22 mixing nozzle. Simpson Strong-Tie also states the material can be used with metered pressure-injection equipment, and it may be dispensed through a static mixing nozzle using either a manual or pneumatic dispensing tool. That makes the cartridge version a practical choice for controlled repair work without stepping up to a bulk kit.
From a standards standpoint, CI-GV meets ASTM C881 and AASHTO M235 requirements across listed types, grades, and classes. That matters for contractors, engineers, and maintenance teams who need a repair material that aligns with recognized concrete repair specifications. It is also made in the USA using global materials and has a shelf life of 2 years in unopened packaging when stored dry between 45°F and 90°F.
This concrete crack repair epoxy makes the most sense for pros handling structural concrete repairs, building maintenance crews, masonry repair work, and serious DIY users who already understand pressure-injection repair. If you need a simple caulk-style crack filler for nonstructural surface touch-up, this is more product than you need. If you need a real injection epoxy for concrete repair that works in damp conditions and is packaged for controlled cartridge dispensing, this one is aimed right at that job.
Controlled Injection for Concrete Crack Repair
The cartridge format is the practical choice when you want controlled dispensing for structural crack injection without moving into a bulk setup. It is built for concrete repair work where placement, flow, and clean mixing matter.
- 32 fl. oz. (946 mL) dual cartridge format
- Includes EMNO22 mixing nozzle
- Suitable for vertical and horizontal crack sealing
- Can be dispensed with manual or pneumatic tools using a static mixing nozzle
What’s in the Box
- (1) Simpson Strong-Tie CIGV32 CI-GV Structural Injection Epoxy Gel, 32 fl. oz. dual cartridge
- (1) EMNO22 mixing nozzle
Key Specifications
| Application | Crack Repair, Structural |
|---|---|
| Material | Two-component epoxy gel |
| Capacity | 32 fl. oz. (946 mL) |
| Packaging Type | Dual cartridge |
| Mixing Ratio | 2:1 |
| Crack Width Range | 3/32 in. to 1/4 in. (2.4 to 6 mm) |
| VOC | 10 g/L (mixed) |
| Made In | USA using global materials |
Compatibility
Mixing Nozzle CIGV32 includes an EMNO22 mixing nozzle for dispensing the two-component epoxy. Dispensing Equipment Can be used with metered pressure-injection equipment and dispensed through a static mixing nozzle using a manual or pneumatic dispensing tool. Base Material Designed specifically for concrete crack repair applications.
Built For
Concrete Repair Masonry Construction Building Maintenance Structural Crack Injection Vertical Crack Sealing Horizontal Crack Sealing Remodeling
Pro Tip
With the Simpson Strong-Tie CIGV32 CI-GV Structural Injection Epoxy Gel, pay attention to crack size before you start. This product is meant for medium cracks from 3/32 inch to 1/4 inch, so if the crack falls outside that range, fix the repair plan before you burn through material.
Tool Nut’s Take
Tool Nut’s Take
Simpson Strong-Tie CIGV32 CI-GV Structural Injection Epoxy Gel Gets the Job Done Right
This is a serious concrete crack repair epoxy for people who need structural injection performance, not a tube of filler dressed up like one.
- Who it’s for: Contractors, maintenance crews, masonry repair pros, and experienced DIY users handling actual structural concrete crack repair.
- Why it stands out: It bonds to concrete, works on dry or damp surfaces, and the gel formula stays controlled while still flowing better under pressure.
- Worth knowing: This is a 32-ounce cartridge with a mixing nozzle, not a bulk kit, and it is best suited to cracks in the listed 3/32 inch to 1/4 inch range.
Common Questions
- What is this product used for? It is used for pressure injection of concrete cracks in structural repair, including vertical and horizontal crack sealing.
- Can it be used on damp concrete? Yes. CI-GV is moisture-tolerant and can be used on dry and damp surfaces.
- What crack sizes is it intended for? Simpson Strong-Tie lists it for medium cracks from 3/32 inch to 1/4 inch wide.
- Does it need special equipment? It uses a static mixing nozzle and may be dispensed with manual or pneumatic dispensing tools, and it can also be used with metered pressure-injection equipment.
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