Need help identifying the best solution for use in ultrasonic cleaner
Hi everyone, I am experimenting with cleaning up water damage from various iPhone logic boards. So far my luck has been maybe 50/50. I want to improve that. Currently I am cleaning the boards in an unheated ultrasonic cleaner with one part Ammonia, two parts water, and a drop of dish soap. Then I rinse with water and then soak in IPA and touch up with a toothbrush if it looks like I can make a difference. A couple days to dry thereafter before trying it out.
I want to improve the solution I am using in the ultrasonic, does anyone have any suggestions? I want to avoid flammable stuff. Would something like CLR work alright, or would it damage the board?
Here is a link to an image: