Porcelain Etch Refill: 4 x 1.2 ml syringes. Buffered 9.6% Hydrofluoric Acid

Porcelain Etch Refill: 4 x 1.2 ml Porcelain Etch syringes. Buffered 9.6% Hydrofluoric Acid. 90-second Porcelain Etch is used to etch porcelain veneers, crowns, bridges, inlays, onlays, and fractured dental porcelain. Will not stain composite or resin cement.