![Greg on Twitter: "It is difficult mostly because paste generally doesn't stick down to the PCB very well, and has a very high viscosity. Commercial solder-paste printers use a "jetable" solder-paste, and Greg on Twitter: "It is difficult mostly because paste generally doesn't stick down to the PCB very well, and has a very high viscosity. Commercial solder-paste printers use a "jetable" solder-paste, and](https://pbs.twimg.com/media/D7Ji2zjUIAI5M7A.jpg)
Greg on Twitter: "It is difficult mostly because paste generally doesn't stick down to the PCB very well, and has a very high viscosity. Commercial solder-paste printers use a "jetable" solder-paste, and
![Influence of PCB Quality Problem on Wave Soldering and Reflow Soldering - Engineering Technical -PCBway Influence of PCB Quality Problem on Wave Soldering and Reflow Soldering - Engineering Technical -PCBway](https://file.pcbway.com/project/18/11/01/6367666655831300009150.png)
Influence of PCB Quality Problem on Wave Soldering and Reflow Soldering - Engineering Technical -PCBway
![Toolour 6 Pieces PCB Circuit Board Holder ESD Safe - Metal Magnetic Fixture Tower On the Blue Steel Base for Electronic Boards Repairing Soldering Desoldering Rework - - Amazon.com Toolour 6 Pieces PCB Circuit Board Holder ESD Safe - Metal Magnetic Fixture Tower On the Blue Steel Base for Electronic Boards Repairing Soldering Desoldering Rework - - Amazon.com](https://m.media-amazon.com/images/I/51VrZdO4h6L._AC_SS450_.jpg)
Toolour 6 Pieces PCB Circuit Board Holder ESD Safe - Metal Magnetic Fixture Tower On the Blue Steel Base for Electronic Boards Repairing Soldering Desoldering Rework - - Amazon.com
![Do some soldered components use solder that only melts in temperatures higher than 480 °C? - Electrical Engineering Stack Exchange Do some soldered components use solder that only melts in temperatures higher than 480 °C? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/n00Og.jpg)