A - After sealing and abrading the floor, refer to the Hillyard Layout and Lining Guide and follow the directions. When applying a water-based finish over solvent-based paint, it is extremely important for the paint to cure as long as possible (Hillyard recommends five days). If you apply finish before the paint has had time to cure property, an incompatibility problem may occur when a water-based finish comes in contact with the solvent vapor. This can cause the finish to lose adhesion. After you have allowed the paint to cure for at least five days, abrade the paint with 150-100 grit screen disc. Start with 150 grit, and if these do not give a uniform dullness to the painted areas, switch to 120 grit. Even though the floor has been abraded before painting, the seal will continue to harden through curing. This hardening process can prevent the first coat of finish from adhering properly if not abraded a second time. If you used Court Guard" to seal, abrade the floor with maroon pads. If you used TipOff', abrade with 150-100 grit screens as described above. Do not exceed 250 square feet per side of disc or pad.