MF-Y solder is one of dentistry's most popular presolders. It flows magnificently and bonds beautifully to both noble and base metals. In fact, unless you need a white solder or want a silverless solder to compliment your silver free alloy, we suggest MF-Y for virtually all ceramic metals. Whenever possible, select a presolder with a high end melting range value at least 100°F (40°C) below the low end of your alloy's melting range.
A material composed primarily of noble metals [e.g., gold (Au), palladium (Pd), platinum (Pt), or silver (Ag)] intended for use in the fabrication of a dental cast [i.e., a positive copy of a part of the oral anatomy made in an impression (mould), such as a dental crown] or dental restorations and appliances (e.g., porcelain-fused-to-metal crowns and bridge restorations). It is typically available in the form of small ingots or bars that are melted and poured into an impression. After application, this device cannot be reused.