Contents: 1 x 5ml Bottle Fortify Fortify is a light-cured, low viscosity resin formulated for use as a composite surface sealant. Contouring and finishing of posterior composite restorations with rotary instruments can create microcracks and surface irregularities that contribute to composite wear during the first six months of function. FORTIFY, a surface sealant formulated with an unfilled resin, will reduce the wear of posterior composites by up to 45% at five years. A composite surface sealed with FORTIFY, has improved wear resistance and long-term marginal integrity. FORTIFY is effective with all anterior/posterior composites (Bis-GMA, or UDMA resin base), resulting in enhanced wear properties. Due to the unique formulation, FORTIFY can be air-thinned significantly, then light-cured, without interfering with the occlusion.