What Is Sublimation

What Is Sublimation?

Sublimation is a printing process where a design is first printed onto special transfer paper, then applied to polyester or polymer‑coated items using heat. When heated, the solid dyes on the paper turn into a gas and move into the polymer surface — not just onto it.

The heat opens the pores of the polymer, allowing the gas to penetrate the coating. As the item cools, the pores close again and the gas returns to a solid state, becoming permanently embedded in the material. Because the design becomes part of the surface itself, you can run your hand over a sublimated item and feel no texture at all.

Sublimation only works on polyester, polymer, or polymer‑coated products. At high temperatures, the dyes convert directly from solid to gas, and the polymer structure temporarily opens to accept the colour. Once cooled, the design is locked in and won’t wash out or peel unless the material itself is damaged.

Most sublimation printing is done on white substrates. Sublimation inks are transparent when heated, so they rely on a light background to show their true vibrancy. White enhances the colours and ensures the final print is bright, crisp, and vivid.

This process allows for a wide range of brilliant, full‑colour designs on many different types of products.