How long can flux be left on a PCB?

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How long can flux be left on a PCB? Reply 2016-08-10 17:09:04

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William Reeve

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I have put flux on a PCB to solder. Can I leave it overnight? Is that ok? Or how long can flux be on the board?

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Reply 2016-08-10 17:09:04

Statement: This post is only the personal view of the author and does not represent the opinions of ALLPCB.com.

andrea.pirovano

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Water-soluble Flux must be removed from the PCB as quickly as possible after soldering. So you cannot leave it overnight. The manufacturer of your Flux will have their recommendations in the data sheet.

Reply With Quote 2016-12-22 12:17:22