Vista Porcelain Etch Refill Kit - 2 x 1.2mL prefilled etch syringes and 25 Spira-Flo brush tips. Viscous 9.5% Hydrofluoric Acid Solution. Apply prior to porcelain veneers and inlays cementation or repairs. Rinse with Silane solution for enhanced resin bonding. 2 - 1.2 ml syringes and 25 tips