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« on: July 24, 2017, 04:43:20 PM »
srinivas_paturi
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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
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« Reply #1 on: July 25, 2017, 11:37:40 AM »
sanjayrai55
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What precisely is "lead free solder" What is the composition?
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« Reply #2 on: July 25, 2017, 12:18:49 PM »
srinivas_paturi
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Composition is Sn 99% Ag 0.3% Cu 0.7% (Do not has lead)
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« Reply #3 on: July 25, 2017, 01:14:17 PM »
sanjayrai55
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Re:

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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« Reply #4 on: July 25, 2017, 01:14:56 PM »
sanjayrai55
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Re:

The flux is available online, including Amazon

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« Reply #5 on: July 25, 2017, 01:16:18 PM »
sanjayrai55
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Re:

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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