Smartseal Sealer Repair Fluid can be applied when problems have occured with existing imprinted concrete or block paved driveways and patios. Surface whiteness, peeling or flaking sealer are common issues that can easily be corrected using Smartseal Sealer Repair Fluid. Smartseal Sealer Repair Fluid will rejuvenate existing imprinted concrete sealer and clear surface whiteness from imprinted concrete, block paving and patio slabs.