9.6% hydrofluoric acid; one-minute etch for ceramic bonding Etches crowns, veneers, inlays, and fractured porcelain Thixotropic; stays where placed; will not run or spread Will not stain porcelain, composites, or resin cements Pre-bent applicator tips included; 4 x 1.2 ml syringes Quantity: 4 per Pack Pulpdent Porcelain Etch Gel, 9.6% Hydrofluoric Acid is used for the chairside surface preparation of ceramic and porcelain restoration surfaces prior to adhesive bonding. The hydrofluoric acid gel selectively dissolves the glassy feldspar phase of the ceramic microstructure to create the micro-retentive surface topography on the internal fitting surface of the restoration that the silane coupling agent and bonding adhesive penetrate to achieve micromechanical adhesion between the resin cement and the ceramic restoration. Each kit contains four 1.2mL syringes and 8 pre-bent applicator tips.Dental offices ordering porcelain etchant from their supplier can buy this kit for etching internal surfaces of porcelain-fused-to-metal and all-ceramic crowns, ceramic veneers, ceramic inlays and onlays, and fractured porcelain surfaces being repaired with composite resin, since the 9.6% hydrofluoric acid concentration provides effective ceramic surface preparation with a one-minute application contact time that creates the surface roughness needed for resin micromechanical retention. The thixotropic gel formulation allows precise application to the internal fitting surface of the ceramic restoration through the included pre-bent applicator tips, with the gel maintaining its stable body after placement to stay exactly where applied without flowing to unintended areas or dripping out of the restoration during the one-minute etch period, preventing the acid from contacting soft tissue, resin cement, or composite at the seating station. After the etch time, the gel rinses off easily with water spray, leaving the etched ceramic surface clean before the silane coupling agent and bonding adhesive are applied, and the formulation produces no staining of porcelain, composite resin, or resin cement materials, an important property for esthetic ceramic cases where chromogenic staining at the margins would compromise the final restoration appearance.
