LCR Liquid Concrete Repair Injection Ports Bag of 7 with Caps Attached These plastic ports are extras for use with LCR Liquid Concrete Repair System. Secure the Ports directly over crack to be repaired using LCR Epoxy Repair Paste. Follow instructions closely. SUMMARY instructions for applying Ports: Using LCR's high strength two-part Epoxy Repair Paste, the holes in base of each Port help secure it to the concrete wall. Position the port directly over the crack using the repair paste to form a complete bond between the wall and the outer edge of the Port's base. Take care not to use too much paste so as not to clog the opening in the base of the Port where the Polygem Industrial Strength Epoxy will be injected. After the epoxy paste has dried, the port is secured, and the remaining length of the crack has been prepared according to the Polygem LCR Kit instructions, the Port is ready. The installed port receives the LCR Liquid Concrete Repair Industrial Strength Epoxy Injection Resin. Cap the port with attached cap when resin emerges from next port above the one being injected. Make certain you follow the complete instructions available in the Polygem Liquid Concrete Repair (LCR) Kit.