Solder Tape is heat resistant (but will burn under direct flame) and can be used to bind parts together while soldering. The tape will withstand temperatures in the soft solder range (no brazing). This product is a hit wherever I demonstrate it. Imagine holding a lip plate or rib in place while soldering. It doesn’t leave the marks like wire, and is more flexible than clamping. Hold keys on saxophones while soldering adjacent posts and guards. Hold trumpet bells and lead pipes in place. Great for all mounting work. Soldering is a process in which two or more items (usually metal) are joined together by melting and putting a filler metal (solder) into the joint, the filler metal having a lower melting point than the adjoining metal. Soldering differs from welding in that soldering does not involve melting the work pieces. In brazing, the filler metal melts at a higher temperature, but the work piece metal does not melt. In the past, nearly all solders contained lead, but environmental and health concerns have increasingly dictated use of lead-free alloys for electronics and plumbing purposes. Soldering is a process whereby similar or dissimilar metals are joined using a soldering alloy that typically includes Tin combined with silver, lead, copper, antimony, bismuth, indium or other alloys. Soldering covers a temperature range of 60 – 445°C. Most solders for electronic and other purposes are an alloy of lead (Pb) and tin (Sn). Some solders also contain Silver (Ag), and others are lead free.