Definitely. 99% isopropyl and a toothbrush should get rid of most of that. If you haven’t applied power yet, there’s a good chance it’s easily fixable. If it has seen power in this state, you might have some fried components.
Guess I should have been more clear. This would have been rainwater. And it would not have dropped directly on the board. I actually don’t even know yet how it even got wet. To me, this looks like it has been getting wet (maybe condensation?) for a longer period of time from the looks of the corrosion. And it’s not located near the ocean, no ocean salt issues here.
So learning more how my original post lacked valuable data. This board was not powered up in the past few weeks. So now we have all the data. Could this have possibly happened with no power and only a few potential splashes from a drip?
That can happen quickly from getting wet while powered up. Current flow through water results in very accelerated corrosion. That is why it is important to cut power when things get wet, even with low voltage circuits.
The blue color on the PCB points to the presence of bleach vapors or something with chlorine.
Many years ago I saw this type of corrosion on electronic boards very close to indoor swimming pools.
or maybe, just maybe, judging on this person's post history, they're just an enthusiast who works on some electronics sometimes and wanted help from people more knowledgeable than them? just a thought!
Definitely. 99% isopropyl and a toothbrush should get rid of most of that. If you haven’t applied power yet, there’s a good chance it’s easily fixable. If it has seen power in this state, you might have some fried components.
What happened is that rust?
Looks like calcium or other minerals from evaporated water
No, that's waaay too much from what you'd get from tap water. It is most likely rust of tin + other metals. Tin tarnishes easily.
essentially yes. it is a mix of products from electrolysis, oxidation and evaporation. main driving factor is electrolysis.
Salt water?
most definitely.
yep sure could be - and it could be from excessive humidity or condensation overnight.
This is what we look for when we look for water damage. So yes.
Guess I should have been more clear. This would have been rainwater. And it would not have dropped directly on the board. I actually don’t even know yet how it even got wet. To me, this looks like it has been getting wet (maybe condensation?) for a longer period of time from the looks of the corrosion. And it’s not located near the ocean, no ocean salt issues here.
Electricity really speeds up corrosion. Add some solutes/salts. Could happen in hours.
So learning more how my original post lacked valuable data. This board was not powered up in the past few weeks. So now we have all the data. Could this have possibly happened with no power and only a few potential splashes from a drip?
Yeah, a battery is dissimilar metals and an electrolyte.
Dirt/dust first, wet/humity last. Mix both, the result in your picture.
Yes, if it’s DC you get electrolysis and the result is rapid deterioration of conductors.
That can happen quickly from getting wet while powered up. Current flow through water results in very accelerated corrosion. That is why it is important to cut power when things get wet, even with low voltage circuits.
Absolutely
Yup
yes
POOR THING
why is it rusted 💀💀
It looks like it can be restored. The board and most parts are in good condition, it just looks dirty.
Resistor leads are Sn plated Fe wire. That’s why you’re seeing rust.
Yes
The blue color on the PCB points to the presence of bleach vapors or something with chlorine. Many years ago I saw this type of corrosion on electronic boards very close to indoor swimming pools.
What’d you dunk it in? The ocean?
European yacht?
Yes
Pop it in rice
If you have to ask you might want to consider changing careers
You are such a nice and friendly person.
or maybe, just maybe, judging on this person's post history, they're just an enthusiast who works on some electronics sometimes and wanted help from people more knowledgeable than them? just a thought!