Crack-Pac® Injection Epoxy

High strength, rigid crack repair

The Crack-Pac® two-part, high solids, low-viscosity crack injection epoxy is designed to repair cracks in concrete. The mixed adhesive has the viscosity of a light oil and a low surface tension that enables it to penetrate fine to medium width cracks. Resin is contained in the cartridge and hardener is contained in the nozzle. Once the nozzle is threaded onto the cartridge, the hardener is released into the resin-filled cartridge by turning the knob at the base of the nozzle. The two components are mixed by shaking the cartridge.


Crack-Pac® Kit

Crack-Pac® injection epoxy is also available in the Crack-Pac Injection Kit. The kit includes everything needed to pressure inject approximately 2.4 meters of cracks:

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Crack-Pac® Injection Epoxy
Crack-Pac® injection epoxy using the E-Z-Click Port System
Crack-Pac® Kit
Crack-Pac® Kit

Technical Information



Suitable for repair of cracks ranging from 0.4 mm 6.4 mm wide in concrete walls, floors, slabs, columns and beams. Can be used to inject cracks in dry, damp or wet conditions with excellent results. Not for use in actively leaking cracks. Apply to concrete 5°C or above.

Usage Temperature

In order for components to mix properly, the resin and hardener must be conditioned to 16°C – 27°C before mixing.

Shelf Life

24 months from date of manufacture, unopened.

Storage Conditions:

For best results, store between 7°C – 36°C.


Resin - blue, hardener - clear, mixed: light amber. The color of epoxy will change from amber to blue during the cure process and then fade back to light amber within a few weeks of installation.

Clean Up

Wipe up with cotton cloths. If desired scrub area with abrasive, waterbased cleaner and flush with water. If approved, solvents such as ketones (MEK, acetone, etc.), laquer thinner, or adhesive remover can be used. DO NOT USE SOLVENTS TO CLEAN ADHESIVE FROM SKIN. Take appropriate precautions when handling flammable solvents. Solvents may damage surfaces to which they are applied. Cured material – Chip or grind off surface.

Chemical Resistance

Very good to excellent against distilled water, inorganic acids and alkalis. Fair to good against organic acids and alkalis, and many organic solvents. Poor against ketones.

Material Properties

Viscosity (mixed, 22°C) ASTM D 2393 1,400 cps
Bond strength (moist cure) ASTM C 882 13.86 MPa (2 days) 26.41 MPa (14 days)
ASTM D 570 0.082% (24 hrs)
Tensile strength ASTM D 638 40.40 MPa (7 days)
Elongation at ultimate ASTM D 638 14.1%
Compressive yield strength ASTM D 695 77.70 MPa (7 days)
Compressive modulus ASTM D 695 2,196.67 MPa
Linear coefficient of shrinkage ASTM D 2566 0.002
Gel time (22°C) ASTM C 881 2 hours - 60 g mass
Initial cure (22° C)  — 24 hours
Mixing ratio   8:1

Accessories / Related Products

Product Data

Model No. Capacity mL
Cartridge Type Carton Quantity Mixing Nozzle
ETIPAC10 266
single 12 CDT10S or standard caulking tool
single 2 (kits)

Crack Repair Adhesive Suitability Matrix

Application / Feature ETI-LV Crack-Pac Flex-H2O
Seals the crack against moisture YES YES
Restores strength to the concrete YES NO
Expands to fi ll voids NO YES
Flexible (allows crack movement) NO YES
Suitable to seal cracks in masonry NO YES
Suitable for dry and wet crack YES YES
Suitable for cracks actively leaking water NO YES
NSF Approved YES NO
Suitable installation procedure(s) Pressure injection or gravity feed Pressure injection
Dispensing Tool Manual: EDT22S Pneumatic: EDT22AP High Quality Standard caulking tool


Fliers (PDFs)

Material Safety Data Sheets (PDFs)

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