Does your prototyping project require soldering? Are you looking for something other than your usual run-o'-the-mill solder wire? Look no further! This high quality, low cost, adorably packaged Lead-Free Prototyping Solder Paste from IC Breakout will provide strong, flux-aided conductive bonds for your board.
Since it’s premixed, all you need to do is cut off the tip to your desired opening (start small), squeeze the paste onto your solder pads, and heat it up using a soldering iron, oven, or any other thermal source to reach the reflow temperature of 227 °C (441 °F). Once liquidus, remove your heat source and let it cool.
The lead free metal content is a mix of tin and copper. The mix is a eutectic solder, meaning that it’s either going to be a solid or liquid during re-flow; not something in between. The custom formula was made by Amtech Inc. specifically to meet the needs of Maker Paste.
Adafruit Product Page: https://www.adafruit.com/products/3217