| Tenacity™ No.2 Modified is a brazing flux specifically formulated for use as the flux element of flux coated rods. The product has also been specially milled to produce powder of suitable size for flux coating machinery. It is supplied in bulk to manufacturers of flux coated silver brazing rods and is used on all Johnson Matthey flux coated rods. The flux itself is suitable for use with silver brazing filler metals. It has a working range of 550-800°C and is recommended for use with filler metals melting below 750°C (such as the low melting point Silver-flo™ and Easy-flo™ alloys). It is highly active very early on in the brazing cycle, exhibits very little bubbling during heating and has a relatively low viscosity when molten. These facts make it suitable for brazing situations where the flux has a short period of time in which to begin to be effective. Information provided by Johnson Matthey Metal Joining |
