Making waterbased paint is a much easier process than most people imagine. If you already have basic tools such as a palette knife and a clean flat surface: you can experiment by making small batches of paint. Depending on what sort of waterbased paint you want to make, you will need a vehicle of your choosing (acrylic emulsion, egg yolk, casein or any kind of watercolor binder).
It doesn't really matter which pigment you start with, although you might want to choose an economical earth pigment, to minimize your initial investment and because earth pigments are easier to work with than the mineral pigments.
Step 1. Making water based paints, starts the same way as the oil paint. Place a small amount of pigment onto a flat non-porous surface. Here we used some Yellow Ochre Golden Shade, because it is non-toxic and easy to disperse into water.