Profile: Ultradent Products, Inc. offers cements, composites, impression material, tissue & syringes. Our product permaflo is a light-cured, radiopaque, methacrylate-based, flowable composite and cement. It is used for anterior and posterior restorations. It can also be used for restoring missing subgingival tooth structure prior to endodontic procedure. Our ultra-etch econo kit is a viscous 35% phosphoric acid solution. The optimal level of viscosity, along with the use of the blue micro tip or inspiral brush tip, facilitates precision placement and superior control. It is just viscous enough to prevent migration on a vertical surface. However, it can penetrate into the smallest fissures of occlusal surfaces due to physical and chemical properties that promote capillary action. The optimum viscosity maintains a thick enough layer to prevent premature drying.