Hi you need to use products relative to water base paints. When I use auto air or etac I use a cleaner called "white spirits" (Australia) also known as mineral spirits in the U.S. white spirits is a product you can get from the local hardware or industrial supplier it is a type of mild cleaner
If you google white spirits or mineral spirits you maybe able to see if you have an equivalent product in your country. From what I have read they are both hydrocarbon solvents and they both share the same un number
Another option would be to source product from your local smash repairer