Lute-It Etch Gel, 37% phosphoric acid, 2 - 1 ml syringes. Etching gel refill for Mojo Veneer Cement. Extremely fast curing time. Customizable shades. No refrigeration required. Pentron Etching Gel refill works well with Mojo Veneer Cement. Mojo addresses the need for a product that is easy to use and shows consistent results.It has a light-curing time of only 2 seconds, with options to gradually change the warmth or brightness of the color to get the exact long-lasting shade to match each patient. When not in use, Mojo only requires storage at room temperature, forgoing the need for refrigeration.Each pack contains 2 (1 ml) syringes.