===== KEK Solder Paste 4258-138 =====
[[File:Kek-solderpaste-bot.jpg|none|thumb|KEK Solder Paste 4258-138<br />Melting point: 138°C<br />Alloy: Sn42Bi58<br />Microns: 20-38um]]
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===Soldering Flux===
Soldering flux is the magic ingredient for a soldering job with many functions that makes it a breeze. It cleans and de-greases the components, promotes wetting (makes solder stick to the components instead of balling up) and reduces oxidation. The "tacky" variety also helps to keep the component in place so the usual step of "tacking down" a component can be skipped with enough soldering skill.