Sublimation shirt printing is a specific process of printing that first involves printing onto a special sheet of paper, then transferring that image onto another material (usually polyester or a polyester mix). The ink is then heated until it disintegrates into the fabric.
It can be used with a range of materials that have a specialist polymer coating, such as those found on mugs, mouse pads, coasters, and more. In some cases, it is also possible to use sublimation on glass, but it needs to be normal glass that has been treated and prepared correctly with a specialist spray.
Aside from the materials that can be used for sublimation, one of the core limitations for sublimation is the colors of any materials. Because sublimation is essentially a dye process, you get the best results when the fabrics are either white or light-colored