Pu pack of rod in expansion joint leakage work in Paganur Rvs waterproofing construction chemical applicators.Expansion joints must be sealed with a flexible sealant, like QUIKRETE Self -leveling polyurethane sealant or QUIKRETE Non-SAG polyurethane sealant...or an expansion joint strip, to prevent water penetrating the joint and deteriorating the sub-base and Rvs waterproofing in Tiruchirappalli.