Simpson CISLV32 CI-SLV Super-Low-Viscosity Structural Injection Epoxy from Simpson Strong-Tie is a two-component, high-modulus, high-solids, moisture-tolerant epoxy specially designed for pressure injection, gravity feeding, and flood coat filling of concrete cracks when substrate temperatures are between 60 deg. Fahrenheit (16 deg. Celsius) and 90 deg. Fahrenheit (32 deg. Celsius). Dispensed from a convenient side-by-side 32-oz. cartridge through a static mixing nozzle using either a manual or pneumatic dispensing tool, this structural injection epoxy delivers a chemically bonded repair that seals cracks against moisture intrusion and protects embedded rebar from corrosion - making it a reliable choice for demanding structural concrete repair work.

Key Features

• Meets ASTM C881 and AASHTO M235, Type I/IV, Grade 1, Class C - compliance with these recognized industry standards gives buyers confidence that the epoxy meets rigorous performance requirements for structural concrete repair.
• Chemically bonds with concrete to provide a structural repair - the CI-SLV seals the crack from moisture, protecting rebar in the concrete from corrosion and restoring structural integrity rather than simply filling the void.
• Moisture-tolerant formulation - can be used on dry and damp surfaces, reducing job-site prep requirements and expanding the range of conditions under which repairs can be made.
• Low surface tension allows the material to effectively penetrate narrow cracks - enabling deep, thorough filling of hairline cracks and wider fissures without leaving voids that could compromise the repair.
• Formulated for maximum penetration under pressure - works efficiently with metered pressure-injection equipment, ensuring the epoxy reaches deep into the crack rather than pooling at the surface.
• Suitable for pressure injection or gravity-feed applications - gives contractors flexibility to match the application method to the orientation and condition of the cracked concrete, whether vertical, overhead, or horizontal.
• Non-shrink and resistant to oils, salts, and mild chemicals - the cured repair maintains its volume and holds up in environments exposed to common chemical aggressors, supporting long-term durability.
• Freeze-thaw resistant - the cured epoxy withstands repeated freeze-thaw cycles, making it suitable for exterior structural repairs in climates with seasonal temperature swings.
• Includes EMNO22 mixing nozzle - the cartridge ships ready to use with the nozzle included, so there is no need to source a separate mixing accessory before starting the job.

Why This Product

• One epoxy, multiple injection methods - the CI-SLV is engineered for both pressure injection and gravity-feed applications, and is compatible with metered pressure-injection equipment as well as the Simpson Strong-Tie ADT30S and ADT30P dispensing tools, giving contractors a single product that adapts to a wide range of concrete crack repair scenarios.
• Structural-grade repair that protects what is inside the concrete - by chemically bonding with the substrate and sealing the crack from moisture, the CI-SLV addresses not just the visible crack but also the underlying risk of rebar corrosion, delivering a repair with long-term structural value.
• Performs where other epoxies fall short - its moisture-tolerant, super-low-viscosity formula lets it penetrate hairline cracks on damp surfaces and in challenging field conditions, reducing the need for extensive surface drying or pre-treatment before application.
• Confidence backed by third-party standards - compliance with ASTM C881 and AASHTO M235 means the product has been evaluated against established benchmarks, giving engineers, contractors, and inspectors a verifiable basis for specifying it in structural repair work.

Specifications

• MPN: CISLV32
• Brand: Simpson Strong-Tie
• Capacity: 32 oz. (946 mL)
• Packaging Type: Cartridge
• Color: Clear
• Viscosity: 150 cP
• Crack Width Range: Hairline cracks (0.002") up to 1/4" (6 mm)
• Yield: 231 in.3/US gal. (0.001 m3/L)
• Substrate Temperature Range: 60 deg.F (16 deg.C) - 90 deg.F (32 deg.C)
• Standards Compliance: ASTM C881 & AASHTO M235, Type I/IV, Grade 1, Class C
• Compatible Dispensing Tools: Simpson Strong-Tie ADT30S and ADT30P
• Country of Origin: United States

Approved Applications

• Pressure-injection of cracks in structural concrete
• Gravity-feed and flood coat of cracks in horizontal concrete
• Repair of hairline cracks (0.002") and cracks up to 1/4" (6 mm) in width
• Structural repairs requiring chemically bonded crack filling
• Underwater pressure-injection applications

What's Included

Each pack contains (1) CISLV32 Super-Low-Viscosity Structural Injection Epoxy, EMNO22 mixing nozzle.

Frequently Asked Questions

What types of surfaces is the CI-SLV epoxy compatible with?

The CI-SLV is moisture-tolerant and can be used on both dry and damp concrete surfaces, making it suitable for a wide range of field conditions including underwater pressure-injection applications.

What crack widths can this epoxy effectively fill?

Due to its super-low viscosity of 150 cP and low surface tension, the CI-SLV is formulated to penetrate and fill hairline cracks as narrow as 0.002" and cracks up to 1/4" (6 mm) in width.

What dispensing tools are compatible with the CISLV32 cartridge?

The 32 oz. side-by-side cartridge is compatible with Simpson Strong-Tie ADT30S (manual) and ADT30P (pneumatic) dispensing tools, and is dispensed through the included EMNO22 static mixing nozzle.

Does the CI-SLV epoxy provide a structural repair, or does it only seal cracks?

The CI-SLV chemically bonds with the concrete to provide a full structural repair. In addition, it seals the crack from moisture, protecting rebar embedded in the concrete from corrosion. It is also non-shrink and resistant to oils, salts, and mild chemicals.

Downloads and Resources

• Epoxy Crack Injection Guide
• CI-SLV SDS Material Safety data Sheets