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Sublimating a 20 oz skinny tumbler takes four moves: clean the blank, mirror and wrap the print, press or bake it, then let it cool before peeling.
For the full breakdown, see our best 20 oz Sublimation Tumbler guide.
Most ruined tumbler prints share one cause: the wrap shifted, or the blank was dirty when the heat went on. Get those two details right, and learning to sublimate a 20 oz tumbler is mostly matching your press time to the values below. The whole job takes five steps and a short list of equipment.
You also do not need an expensive cylindrical press to get started. Treat every number here as a starting point, then fine-tune from your results.
Supplies You Need Before You Start
Sublimation dye only bonds to the polymer coating on special blanks, and it only activates from a printer running sublimation ink. Ordinary inkjet printers and plain stainless cups will not work, so gather the right gear first.
- Sublimation printer, ink, and paper. Dye-sublimation ink turns to gas under heat and bonds with the polymer coating. Print your design mirrored onto sublimation paper before you cut it out.
- Cleaning and taping supplies. Rubbing alcohol, a lint-free cloth, a lint roller (A-SUB uses one to lift dust), heat-resistant tape, and scissors.
- A heat source plus safety gear. A tumbler heat press, flat heat press, or convection oven; a shrink-wrap sleeve if you bake; heat-resistant gloves; and a heat-safe cooling surface.
Blank quality shows up in the final transfer, and uneven coatings read as washed-out patches. If you are still choosing, our tested best 20 oz sublimation tumblers list points to straight-walled blanks that take a wrap cleanly.
How to Sublimate a 20 oz Tumbler, Step by Step
The transfer works in five steps, and the order matters. Prep is where most mistakes happen, so do not race past it.
- Wipe down the blank. Rub the outside with rubbing alcohol and a lint-free cloth, then avoid touching the tube afterward. Fingerprints on the polymer coating show up as dull spots in the finished print.
- Size and mirror the design.
