Water transfer printing or immersion printing is a method of applying printed designs to three-dimensional surfaces. You can apply printed designs on metal, plastic, glass, hard woods, and various other materials. In the video you can see the process of applying printed designs to rims. Very interesting process but, you must be careful with the activator because one of the most common causes of a failure to achieve adhesion between the two layers is too much/too little activator.
Check it out!