The Real Mistakes That Cost Sublimation Beginners Money
Every sublimation beginner makes mistakes. That's normal. But some mistakes cost you far more than others, and a few of them can put you off the whole thing before you've even got started properly. Here are the ones that actually matter, with enough detail to help you avoid them.
Buying the Wrong Printer
This is the big one, and it catches people out because it seems logical to use whatever inkjet printer you already own. The problem is that sublimation ink only works with piezoelectric print heads. Epson uses piezoelectric technology in its inkjet range, which is why almost every sublimation printer you see is a converted Epson EcoTank. Canon and HP printers use thermal print heads, which heat the ink to push it through the nozzle. Sublimation ink doesn't work properly with thermal heads, so if you buy a Canon or HP thinking you'll save money, you'll end up with a printer that can't do the job at all.
Stick with an Epson EcoTank model. The ET-2810 or ET-2850 are solid choices for A4 printing, and if you want A3 capability, the ET-16150 is the go-to option. You can browse sublimation-ready printers or read our guide on choosing the best sublimation printer for beginners.
Skipping ICC Colour Profiles
You've got your printer, you've loaded your sublimation ink, and your first print comes out looking completely wrong. The colours are muddy, the reds look orange, the blues are dull. Your immediate thought is that the ink is cheap or faulty. Nine times out of ten, the real problem is that you haven't installed the correct ICC colour profile.
An ICC profile tells your printer exactly how to lay down ink so the colours match what you see on screen. Without it, your printer is guessing, and it guesses badly. Every ink manufacturer provides ICC profiles for specific printer models. Install them, set them up in your print driver or design software, and your colours will be dramatically better overnight. It takes ten minutes and saves you wasting ink and paper chasing a problem that was never about the ink in the first place.
Using Cheap Blanks with Poor Coating
Sublimation only works on polyester or polymer-coated surfaces. The coating on a blank is what accepts the sublimation dye and locks it in. A well-coated mug will produce bright, sharp colours that survive hundreds of dishwasher cycles. A poorly coated mug will give you a washed-out print that starts fading after a few washes.
The trouble is, you can't see the coating quality until after you've pressed a design onto it. Cheap blanks from unknown suppliers often have thin or uneven coatings. The print looks acceptable at first glance, but a customer who gets a mug where the design starts peeling after a week isn't coming back. Worse, they're leaving a bad review. Spend a bit more on quality blanks from a supplier you trust and you'll save yourself returns, refunds, and reputation damage.
Underpricing Your Products
New sellers almost always price too low. They look at the cost of a blank mug (maybe £2-3) and think selling a personalised mug for £8 gives them a healthy profit. But they haven't counted the sublimation ink used per print, the transfer paper, the electricity for the heat press, the time spent designing and pressing, the packaging, and the postage. Once you add all of that up, an £8 mug might be breaking even or losing money.
A simple pricing approach: add up your total material costs (blank, ink, paper, packaging) and multiply by at least 2.5 to 3 for your retail price. Then factor in platform fees if you're selling on Etsy (roughly 13-15% of the sale price). If the final number seems high compared to competitors, don't just drop your price. Look at whether you can add value instead, through better designs, faster dispatch, or gift wrapping options.
Not Doing Test Prints
Pressing a design straight onto a full-price blank without testing it first is a gamble. Colours can shift depending on your printer settings, the paper you're using, and the blank's coating. A test print on a cheap offcut or spare blank lets you check colours, positioning, and transfer quality before committing an expensive blank. If the test looks wrong, you've lost a sheet of paper and some ink. If you skip the test and press onto a £5 blank, that blank is gone.
Keep a few cheap mugs or fabric scraps specifically for test pressing. It adds a couple of minutes to your workflow and saves you money every single time.
Ignoring Humidity and Paper Storage
Sublimation paper absorbs moisture from the air. If your paper is stored in a damp room, a garage, or just left open in its packaging, it will absorb humidity and start to curl. Damp paper causes problems during pressing: the moisture turns to steam, which can cause blurring, colour shifts, and ghosting (where the image moves slightly and creates a shadow effect).
Store your paper flat, in a sealed bag or container, ideally with a silica gel packet. If you live somewhere with high humidity, this is even more important. Some printers also struggle to feed paper that has absorbed moisture and started to buckle, which causes paper jams and wasted sheets.
Not Printing Regularly
If you leave your sublimation printer sitting unused for weeks at a time, the ink in the print head nozzles starts to dry out and clog. A clogged nozzle means missing lines in your prints, colour banding, or complete colour dropout. Running a head cleaning cycle uses a surprising amount of ink, and severe clogs can require multiple cleaning cycles or even professional attention.
The simplest prevention is to print something at least once or twice a week. It doesn't have to be a full design. A simple colour test pattern is enough to keep ink flowing through all the nozzles. If you know you won't be printing for a while (holidays, for example), run a nozzle check before you stop and another when you come back. Prevention is far cheaper than unclogging a dried-out print head.
Learning from Mistakes You Haven't Made Yet
None of these mistakes are complicated to avoid once you know about them. The people who struggle most in sublimation are the ones who rush into production without understanding the process. Take the time to set up your colour profiles, test your prints, store your materials properly, and price your products realistically. The equipment and process are straightforward once you respect the basics, and you'll save yourself a lot of wasted blanks and frustration along the way.