An inexpensive and permanent method of sealing the grade adjustment ring area and joint sections in a manhole or catch basin from the inside. Flex-Seal Utility Sealant is an aromatic urethane rubber. Urethanes are noted for extreme toughness, elongation, abrasion resistance, acidic resistance, and longevity. Sealing Systems, Inc. Process allows a fast and simple method of sealing the adjustment ring area and joint sections on any concrete structure. |