As an alternative to an epoxy injection machine, Epoxy Systems, Inc. offers 450 ml binary injection system . This uses a binary caulking gun and static mix tubes to inject this resin. Limit pressures to 40 p.s.i for most applications. Excessive pressures can create additional stressing of the crack. It can also cause hydraulic lifting, rupturing of the cracked substrate, or further elongation of the crack.
Low pressures allow gradual resin flow into the crack for deeper penetration.
On vertical cracks, injection is start at the lowest point, and continue upward on the crack area. While injecting the lowest port, resin will flow to and out of the next higher port. When pure resin is flowing out the next port cap, plug the current injection port and move to the next port. Then injection continues in the port showing resin flow. This procedure continues until all ports are full.