Sublimation printing is a digital method that uses heat and pressure to turn solid dye into gas, which bonds with polyester fibers or polymer-coated surfaces. The image becomes part of the material, so it resists cracking and peeling. Most blanks press at 375°F to 400°F. It works on polyester apparel, coated mugs, and metal panels, but not cotton. Alpha Print Supply supplies sublimation printers, inks, and heat presses.