What Is The Difference Between Epoxy And Polyurethane Resins Used In Crack Injection? Introduction Crack injection is a process of repairing foundation cracks, which you would know about if you’ve ever had leakage repair in your basement. According to experts offering water leakage solutions in Delhi , crack injection is the most common, easiest and cheapest way of fixing foundation cracks that involve relatively very limited basement waterproofing products . Crack injection involves forcing a fluid resin into a crack in the foundation wall at low or high pressure (depending on the need) that cures the crack once it solidifies. There are two types of resins used in crack injection, which are used based on the characteristics of the crack to be repaired. The Two Types of Resins Used In Crack Injection Epoxy and Polyurethane (also called just Urethane) are the two types of resins used in crack injection, according to construction chemical manufacturers in India . N...