This is what I used.
A paper cup with acrylic paint watered down to a watery paste and a brush. You need to add the water so it repel reacts to the alcohol.
Next you need some Isopropanol alcohol. The higher the proof the better the reaction you get, a 92% proof is great if you can get it.
Remember to use this in a well ventilated room and be cautious because it is flammable.
Finally you need some paper. I used water colour paper from a drawing pad and a page in my journal.
What I did.
I put a small amount of alcohol into a small bottle with a small spout. I painted a base colour onto my paper using just plain acrylic paint. I let it dry thoroughly. Next I mixed blue paint with some water in my paper cup. I kept adding water until it was a single cream consistency. I painted a thinnish coat of this paint over the base coat. I let some of the alcohol drop over the wet paint and watched what happened. As you can see not much happen, so I tried again with a slightly darker blue and little bit more water.
This ti =me the results were more dramatic. It created circles all over the page. Woooo I loved it!!! I tried will several different bits of paper that I'd had from the Gell paint experiments.
I was on a roll now, but all the drops seemed to be very big soooooo....I thought I'd try dripping with something else.
Again I coated the base coat with a watery blue paint and instead of using the bottle I dipped a brush into the alcohol and flicked it over the wet paint. It gave a lovely snowy effect with much smaller circles.
Finally I let the paint dry and then added another coat of lighter blue paint in a circle in the centre and on each corner of my journal and again dripped some alcohol onto the wet light blue. It gave a very interesting design. To me it looked very moon like and made me think of space. I'm going to finish that page off when it journaling time.
I found this playing with paints so much fun and can see a lot of potential using different bright colours.... very psychedelic!!!!!