Soldering flux

[srinivas_paturi]

Hi,

I am using lead free solder for quadcopter build. While there is no need to use soldering flux for some connections, but I think need to use flux while connecting thick wires (for ex: Battery JST connectors).

What is the soldering flux recommended here? (i.e when using lead free solder)

Thanks,
Srinivas

[sanjayrai55]

What precisely is "lead free solder" What is the composition?

[srinivas_paturi]

Composition is Sn 99% Ag 0.3% Cu 0.7% (Do not has lead)

[sanjayrai55]

Firstly congratulations, and Kudos, for using this environment friendly technology
This article may be of interest when using this: http://www.kester.com/knowledge-base/lead-free-solutions#47059-flux-and-solder-paste-considerations-for-lead-free-soldering

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[sanjayrai55]

The flux is available online, including Amazon

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[sanjayrai55]

http://www.amazon.in/Lead-free-Temperature-Melting-Point-Solder/dp/B071172NYZ?tag=googinhydr18418-21&tag=googinkenshoo-21&ascsubtag=b51917a8-ff74-43c3-9f50-4d5caa48401c

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