Simpson Strong-Tie ET-3G™ ET3G22-N Epoxy Anchoring Adhesive 22 oz - ET-3G is a two-component, high-solids, epoxy-based system ideal for general anchoring of threaded rod and rebar into concrete (cracked and uncracked) and masonry (cracked and uncracked). It has a two year shelf life for unopened cartridges stored between 45 degrees Fahrenheit and 90 degrees Fahrenheit. This adhesive includes a mixing nozzle and extension.