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Flex-Seal Utility Sealant from Sealing Systems is a plural component aromatic urethane with an 800 percent elongation and a tensile strength of 3,200 psi. It is designed to prevent inflow/infiltration and to provide corrosion protection at the grade adjustment ring section or joint section. It provides an ideal seal and it will pass a vacuum test according to ASTM standards. 800-478-2054; www.ssisealingsystems.com.

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