Simpson Strong-Tie ETIPAC2G10KT Crack-Pac Injection Epoxy Kit is a low-viscosity epoxy repair kit for concrete crack injection. This is a concrete crack injection epoxy kit designed for non-structural concrete crack repair. Model Number: ETIPAC2G10KT. It is built for repairing cracks in concrete walls, floors, slabs, columns, and beams where you need the material to penetrate tight openings and bond back to the surrounding concrete.

What matters here is how the material behaves once it hits the crack. Simpson says the mixed adhesive has the viscosity of a light oil and low surface tension, which is exactly what you want for pressure injection or gravity feed work. Instead of bridging over a narrow crack, it can move into fine openings from 1/64 in. up to 1/4 in. wide. That makes it a practical fit for repair work where surface patch materials are not enough.

The cartridge setup is also jobsite-friendly. The Crack-Pac system dispenses with a standard caulking tool, so there is no special dispensing gun required. Resin stays in the cartridge and hardener stays in the nozzle, which keeps mixing cleaner and simpler than hand-mixing small batches. If you are doing one repair or a handful of isolated cracks, that is a real time saver.

In service, this epoxy is meant to do two jobs at once. First, it seals out moisture, which helps protect embedded rebar from corrosion and helps reduce moisture-related damage to flooring above or around the slab. Second, it chemically bonds with the concrete to restore strength at the crack line. Simpson also lists the cured material as non-shrink and resistant to oils, salts, and mild chemicals, plus freeze-thaw resistant, which matters when the repair area sees seasonal temperature swings or light chemical exposure.

The kit format is what makes this SKU more useful than a couple of cartridges by themselves. ETIPAC2G10KT includes two 9 oz. Crack-Pac cartridge/nozzle sets, E-Z-Click injection ports, two injection fittings with 12 in. tubing, ETR paste-over epoxy, disposable wood applicators, and latex gloves. In plain terms, you are getting the pieces needed to set ports, seal the face of the crack, and inject the epoxy instead of having to piece the system together separately.

For application conditions, Simpson states the product can be used in dry, damp, or wet conditions with excellent results, but not in actively leaking cracks. Usage temperature is 60°F to 90°F, and the resin and hardener should be conditioned to 60°F to 80°F before mixing so the components combine properly. Gel time is listed at 105 minutes when tested at 72°F, which gives you workable time for setup and injection rather than forcing a rush job.

On the standards side, the epoxy meets AASHTO M-235 and ASTM C881, Type I, Grade 1, Class C requirements. That gives buyers in concrete repair and restoration a clear benchmark for what the material is designed to do. Key published properties include 500 cP mixed viscosity, 6,100 psi tensile strength after a 7-day cure at 60°F, and 0.08% water absorption after a 14-day cure under the listed test conditions.

This kit makes the most sense for concrete repair contractors, restoration crews, facility maintenance teams, and serious DIY users handling non-structural crack repair in slabs, basement walls, columns, and similar poured concrete elements. If you need a clean cartridge-based concrete crack repair system that can be used with a regular caulking gun and includes the injection accessories to get started, this is the right kind of setup. If the crack is actively leaking water, this is not the product to reach for.

Simpson Strong-Tie ETIPAC2G10KT Crack-Pac Injection Epoxy Kit gets the job done without making the setup complicated

If you need a cartridge-based concrete crack repair system that actually reaches narrow cracks and does not force you into a specialty dispenser, this is the smart buy.

• Who it's for: Contractors, maintenance crews, and serious DIY users repairing non-structural cracks in concrete walls, floors, slabs, columns, and beams.
• Why it stands out: Low-viscosity epoxy for fine crack penetration, standard caulking gun use, and a real kit with ports, fittings, paste-over epoxy, and applicators included.
• Worth knowing: It works in dry, damp, or wet conditions, but not in actively leaking cracks, so match the product to the repair before you start.

• What crack sizes is this kit designed for? Simpson lists it for concrete cracks ranging from 1/64 in. to 1/4 in. wide.
• Can it be used in damp or wet concrete? Yes. The manufacturer says it can be used in dry, damp, or wet conditions, but not in actively leaking cracks.
• Do I need a special dispensing gun? No. The epoxy dispenses with a standard caulking tool.
• What standard does this epoxy meet? It meets AASHTO M-235 and ASTM C881, Type I, Grade 1, Class C.