Dental Etching Gel Description: 38% Phosphoric Acid The world standard for more than two decades and millions of applications Etch-Rite is a superior quality dental etching gel specially formulated for maximum working and handling characteristics. Thixotropic Stays where placed – will not run onto exposed tissue Washes off easily without leaving any residue 20 second etch for enamel and 15 second etch for dentin Convenient syringe dispensing Precise placement through small-gauge pre-bent applicator tips