Flexfill is a two-component epoxy joint filler designed to be used in control and construction joints in concrete industrial floors. Flexfill is a low modulus, highly flexible joint filler used in saw cut floor joints to provide support and load-bearing capacity at the joint edges. Flexfill is used in floor control joints where movement is possible due to thermal variations, shrinkage and deflection. It is available in two consistencies, self-leveling and gel. Flexfill is used in horizontal and vertical applications.