Built for DIYers. Trusted by Pros.

CBG Sourcing 3-Pack Injection Epoxy Cartridges feature Polygem Liquid Concrete Repair (LCR), low-viscosity structural epoxy injection resin for larger concrete crack repair jobs or for replenishing an existing injection setup. Each bundle includes three 10 fl. oz. co-axial cartridges designed for use with a standard 10 oz. caulking gun after internal mixing—no specialized dual-cylinder injection gun required.

Polygem Liquid Concrete Repair is a 100% solids, two-component, moisture-insensitive epoxy designed to restore structure and design strength to cracked concrete. The 580 cps low-viscosity formula has excellent wetting properties that help it penetrate tight cracks as narrow as 0.005 in. for deep internal bonding. It can be used for structural crack repair in basement foundations, poured concrete walls, slabs, patios, sidewalks, balconies, parking decks, reservoirs, tanks, pools, and other cracked concrete surfaces.

Unlike surface patch products that only cover the face of a crack, this injection epoxy is designed to penetrate the crack itself. Once cured, the material provides excellent adhesion to concrete, wood, fiberglass, and metal, with manufacturer technical data listing 7,908 PSI compressive strength, 5,868 PSI tensile strength, no VOCs, no solvents, and very low shrinkage.

How It Works

• Mix internally using the included plunger rod
• Attach the threaded nozzle
• Dispense with slow, steady pressure using a standard 10 oz. caulking gun
• Inject within approximately 30 minutes after mixing

Important Application Notes

• For vertical wall repairs, seal the crack face with Polygem Epoxy Repair Paste and install injection ports before dispensing
• Paste and ports are sold separately
• Install between 40°F and 90°F
• Clean uncured material with isopropyl alcohol or acetone
• Made in USA