Water based inks have a softer feel. You will need a higher mesh count (200's) because the ink is thin. It is easier to clean up, but it dries on the screen very quickly. There are different chemicals involved in the cleaning process. I suggest you take a cybertrip over to Ryonet (silkscreeningsupplies.com) on the left and look up one of their water based ink kits and write down everything that you will need. I also suggest you get their DVD on water based ink printing.