Pulpdent's Porcelain Prep Kit prepares porcelain surfaces for bonding, containing etch gel, silane, Kool-Dam, and Dry-Rite. Protect soft tissue with Kool-Dam (light cure liquid dam). Apply Pulpdent Porcelain Etch Gel for one minute, which will not stain the ceramic. For best results, dry the ceramic surface completely with Dry-Rite before applying silane.