I used that system back 1971 or so. The model mags of the time called it 'Psycho Swirl'. We applied a semi flat white base coat....then submerged the model in a bucket of water.....sprayed the colors wanted in the water surface.....make a pattern or not......pull the model, nose first, up through the paint. It does go on like a decal....as you may need to blot out some trapped water. Fun....but hard to maintain control or scale.