Typically, I use glass beds, so for these I have come up with the following cleaner.
The following mixture is put in a small spray bottle to easily apply it to the printer bed.
- 1/2 Water
- 1/2 Isopropyl Alcohol 70%
- a drop of dish soap per 75ml
You can also increase the amount of Isopropyl Alcohol up to 2/3 depending on the percentage of concentration of your Isopropyl Alcohol.
Make sure to only use a microfiber cloth or something that does not lint to not leave any unwanted residue on your print bed.