Etch Rite 4 x 1.2ml Syringe + Tips Etch-Rite is a superior quality dental etching gel with a specially designed viscosity for maximum working and handling characteristics. It is thixotropic and stays where placed, and it will not run onto exposed dentin or tissue. Etch-Rite is specially formulated to wash off completely and easily leaving no residue. Dentin, enamel and glass ionomers are etched in 15-20 seconds. Syringe dispensing through pre-bent dispenser needles provides precise placement of material on dental surfaces.