Simpson Strong-Tie CI-LV Low-Viscosity Structural Injection Epoxy is a two-component, high-modulus, high-solids, moisture-tolerant epoxy specially engineered for pressure injection, gravity feeding, and flood coat filling of concrete cracks, as well as for increasing the bond between freshly placed repair mortars or concrete mixes and existing concrete. Formulated for use when substrate temperatures are between 40 deg. Fahrenheit (4 deg. Celsius) and 90 deg. Fahrenheit (32 deg. Celsius), this 32-oz. side-by-side cartridge dispenses through a static mixing nozzle using either a manual or pneumatic dispensing tool, making structural crack repair straightforward and precise.

Key Features

• Meets ASTM C881 and AASHTO M235, Type I/II, Grade 1, Class B; Type I/IV and II/V, Grade 1, Class C; and NSF/ANSI Standard 61 - third-party compliance with multiple recognized standards gives buyers confidence the epoxy meets rigorous structural and safety requirements for concrete repair.
• Chemically bonds with concrete to provide a structural repair while sealing cracks from moisture - this dual action restores load-carrying capacity and protects embedded rebar from corrosion, extending the life of the repaired structure.
• Moisture-tolerant formula works on dry and damp surfaces - eliminates the need to fully dry the substrate before application, reducing prep time and expanding the range of conditions where repairs can proceed.
• Low surface tension formulated for maximum penetration under pressure - allows the epoxy to effectively infiltrate even hairline cracks, ensuring thorough fill and a complete structural bond where other products may fall short.
• Suitable for pressure injection and gravity-feed applications - a single product handles multiple repair methods, reducing the need for separate materials on the job site.
• Compatible with metered pressure-injection equipment and Simpson Strong-Tie ADT30S and ADT30P dispensing tools - seamless integration with professional dispensing tools supports accurate mixing and consistent output across the application.
• Non-shrink and resistant to oils, salts, and mild chemicals - the cured repair maintains its volume and holds up in demanding environments such as parking structures, industrial floors, and infrastructure exposed to road salts.
• Freeze-thaw resistant - the cured epoxy withstands repeated freeze-thaw cycles, making it a reliable choice for exterior and below-grade concrete repairs in cold climates.
• Includes EMNO22 mixing nozzle - the nozzle needed for proper two-component mixing is included, so the cartridge is ready to use with a compatible dispensing tool right out of the box.

Why This Product

• One epoxy, multiple repair methods - whether the job calls for pressure injection into vertical cracks, gravity-feed filling of horizontal surfaces, or bonding new repair mortar to existing concrete, this single cartridge handles all three, simplifying material procurement and storage.
• Engineered to penetrate where it matters most - the low-viscosity, low-surface-tension formula is specifically designed to reach deep into narrow cracks under pressure, delivering a complete structural bond rather than a surface-only fill that could fail over time.
• Performs in real-world conditions - moisture tolerance, freeze-thaw resistance, and chemical resistance to oils and salts mean this epoxy is built for the variable and demanding environments where concrete crack repair is most often needed, not just controlled laboratory conditions.
• Standards compliance and NSF/ANSI 61 approval add project-ready credibility - meeting ASTM C881, AASHTO M235, and NSF/ANSI Standard 61 requirements means this epoxy can be specified and used with confidence on projects where compliance documentation is required.

Specifications

• MPN: CILV32
• Brand: Simpson Strong-Tie
• Capacity: 32 oz.
• Packaging Type: Cartridge
• Compatible Dispensing Tools: Simpson Strong-Tie ADT30S and ADT30P
• Temperature Range: 40 deg.F (4 deg.C) - 90 deg.F (32 deg.C) substrate temperature
• Standards: ASTM C881 & AASHTO M235, Type I/II, Grade 1, Class B; ASTM C881 & AASHTO M235, Type I/IV and II/V, Grade 1, Class C; NSF/ANSI Standard 61 (379 in.2 /1,000 gal.)
• Country of Origin: United States

Approved Applications

• Pressure-injection of cracks in structural concrete
• Gravity-feed and flood coat of cracks in horizontal concrete
• As a low-viscosity epoxy (350 cP) for repair of hairline cracks (0.002") and cracks up to 1/4" (6 mm) in width
• For structural repairs
• To bond new concrete or repair mortars to existing concrete
• For underwater pressure-injection applications

What's Included

Each pack contains (1) CILV32 Low-Viscosity Structural Injection Epoxy, EMNO22 mixing nozzle.

Frequently Asked Questions

What types of surfaces can the CI-LV epoxy be applied to?

The CI-LV is moisture-tolerant and can be used on both dry and damp surfaces, making it suitable for a wide range of concrete repair conditions.

What application methods are compatible with this epoxy?

The CI-LV is suitable for pressure injection, gravity-feed, and flood coat applications. It can also be used with metered pressure-injection equipment and is compatible with the Simpson Strong-Tie ADT30S and ADT30P manual and pneumatic dispensing tools.

Does the CI-LV epoxy provide protection against corrosion and chemical exposure?

Yes. Once cured, CI-LV seals the crack from moisture, protecting rebar in the concrete from corrosion, and is also non-shrink and resistant to oils, salts, and mild chemicals. It is additionally freeze-thaw resistant.

What certifications and standards does the Simpson CI-LV epoxy meet?

It meets the requirements of ASTM C881 & AASHTO M235, Type I/II, Grade 1, Class B and ASTM C881 & AASHTO M235, Type I/IV and II/V, Grade 1, Class C, and is approved under NSF/ANSI Standard 61 (379 in.2 /1,000 gal.).

Downloads and Resources

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