acid-reflux
Refers to where you have to again apply (because the previous layer of said cleaner that you'd already spread on the joint accidentally got wiped off or contaminated) ferrous-metal-cleaning paste/fluid before using solid/acid-core solder to join non-electronic-type items, such as sheet-steel or piping.
Soldering is often cranky and tedious enough as it is, and so having to keep applying tinner's fluid is enough to give you acid-reflux from sheer frustration!
acid-reflux by QuacksO February 6, 2020
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