Used in composite restorations, orthodontics, and dental bonding. Increases bonding strength, has suitable viscosity for enhanced accuracy, easy rinsing, and high color contrast are also features of this product. The 37% phosphoric acid avoids excessive etching, thus reducing sensitivity. Each syringe weighs 3.3 grams. The 37% phosphoric acid from Nik Darman is available in a pack of 4 syringes, each with a volume of 2.5 ml, along with tips.