Simpson FH05 Crack-Pac Flex-420 Polyurethane Crack Sealer, 5 Gallon Resin w/ Pint of Accelerant Fiber-Cement Siding Nails Sharp threads for fast

Sharp threads for fast

Available in level 2-6

or marine environments

Made from 305 stainless steel

and utility crews

Simpson FH05 Crack-Pac Flex-420 Polyurethane Crack Sealer, 5 Gallon Resin w/ Pint of Accelerant Fiber-Cement Siding Nails Sharp threads for fastThe Simpson Crack Pac Flex H2O polyurethane injection resin seals leaking cracks, voids, or fractures from 1 32" to 1 4" wide in concrete or solid masonry. It is designed to perform in applications where water is seeping or mildly leaking from the crack. The polyurethane is packaged in the cartridge and an accelerator is packaged in the nozzle. When the resin encounters water as it is injected into the crack, it becomes an expanding foam that provides