Why Is My Sublimation Not Transferring? 9 Causes and Fixes

Updated: March 7, 2026

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Sublimation not transferring is one of the most frustrating problems you’ll run into as a crafter. You peel back your transfer paper expecting a vibrant design and instead you see… nothing. Or worse, a faded ghost of what should have been a beautiful print. The good news? There’s almost always a fix!

So many crafters describe the exact same frustration – doing everything “right” but the design just won’t transfer. Whether your sublimation transfer is not working at all, or the image is not showing up the way it should, there’s almost always a clear reason. After researching this problem inside and out, I want to save you from that trial-and-error phase.

Below you’ll find the 9 most common reasons your sublimation is not transferring, plus substrate-specific fixes for mugs, shirts, and tumblers, and a settings cheat sheet you can bookmark.

Why Is My Sublimation Not Transferring? 9 Common Causes

When sublimation is not transferring, it’s usually one of these nine issues. Here are the causes I see most often, starting with the biggest one.

1. Wrong Temperature or Uneven Heat

This is one of the most common reasons for sublimation transfer problems. Sublimation ink needs heat to turn into gas and bond with the polyester fibers – and it needs the RIGHT amount of heat.

Your heat press may not be reaching the right temperature, or the display may be inaccurate. Many blanks fall in the 375-400°F range, but exact settings vary by substrate and supplier – always follow the blank manufacturer’s recommendations first. Use an infrared thermometer to verify the actual temperature, since displays can be off by 10-20 degrees. Also make sure your press is fully preheated before you start, which takes a good 10-15 minutes. Even if the displayed temperature is correct, your press may have cold spots or uneven heat across the platen.

My tip: Always verify your press temperature with an infrared gun. Your press might display 400°F but actually run at 385°F – and that 15-degree difference matters!

2. Wrong Substrate (Not Enough Polyester)

Sublimation ink only bonds with polyester. If your blank doesn’t have enough polyester content, the ink has nothing to grab onto.

Sublimation works best on high-polyester fabrics, with 100% polyester giving the most vibrant results. For hard goods like mugs and tumblers, they need a special polyester coating to accept the ink. If your sublimation is not sticking to a blank that looks right, check the product listing – some “sublimation ready” blanks have poor coatings. Always check the tag or product description before buying, and don’t try to sublimate on regular cotton. You’d need a special poly-spray coating for cotton, but honestly the results are never as good. Stick with polyester!

3. Not Enough Time

Even with the right temperature, the ink needs time to fully convert to gas and penetrate the substrate. If you’re pressing too briefly, the transfer will be incomplete or faded.

Many flat sublimation blanks fall around 45-60 seconds, while mugs are often pressed around 180 seconds (3 minutes), though mug coatings and presses vary. Adjust in small increments and test one blank first, since both under-pressing and over-pressing can cause problems. If your transfer looks faded or washed out, try increasing time in 15-second increments until you get vibrant colors.

4. Not Enough Pressure

Pressure keeps the transfer paper in tight contact with the substrate. Without enough pressure, the ink can’t transfer evenly and you’ll get patchy or incomplete results.

For flat items, use medium to firm pressure – you should need some effort to close the press. For mugs and tumblers, make sure the wrap is tight with absolutely no gaps between the paper and the surface. I also recommend using a pressing pillow under shirts to ensure even pressure across the entire design, especially around seams and zippers.

5. Moisture in Your Substrate

This one catches a lot of people off guard. Moisture trapped in your blank interferes with the sublimation process and causes faded prints, blurry images, or random spotty areas where the ink didn’t transfer.

The fix is simple: pre-press your blanks for 5-10 seconds before sublimating. This drives out any trapped moisture. Also store your blanks in a dry place away from humidity, and use butcher paper when pre-pressing to absorb the moisture.

My tip: Pre-press most blanks for a few seconds, even items straight out of the package. It helps remove moisture and prevents a lot of common transfer problems.

6. Printing on the Wrong Side of the Paper

Sublimation paper has a coated side that accepts the ink. Print on the wrong side and your sublimation won’t transfer no matter what settings you use.

The coated side is usually brighter white and slightly tacky to the touch, while the uncoated side looks more yellow or grey and feels matte. Most printers load with the coated side facing down. My tip: mark one side of your paper stack with a small dot so you always load it correctly – it’ll save you from this annoying mistake.

7. Clogged Print Heads

If your printer’s nozzles are clogged, the ink won’t lay down properly on the paper – and if it’s not on the paper right, it can’t transfer to your blank.

Run a nozzle check pattern from your printer settings. If you see gaps or missing lines, run 1-2 head cleaning cycles. The best prevention is printing something at least once a week to keep the ink flowing – printers that sit idle for days or weeks are the ones that develop clogs. Print a small test pattern every few days, even if you don’t need to print anything real. It uses a tiny bit of ink but saves you from clog headaches!

8. Transfer Paper Shifted (Sublimation Ghosting)

Sublimation ghosting is when your paper moves even slightly during pressing and you get a blurry double image – a shadow of your design offset from the main print. This is so frustrating because the design was perfect, you just moved the paper a tiny bit.

Use heat-resistant tape to secure paper to all hard substrates, and on fabric, some crafters use a very light, heat-safe adhesive spray to reduce shifting, but test carefully to avoid residue. When you open your press, lift it straight up – never slide or drag. Follow the paper and blank recommendations for peel timing – some projects work better peeled warm, while others are best left to cool briefly. Always tape everything, even items you think won’t shift. Heat tape costs pennies per use and saves entire projects.

9. You Forgot to Mirror Your Image

This one sounds too simple, but it catches even experienced crafters off guard. If your design has text or a specific orientation and you didn’t flip it before printing, the transfer will come out reversed on your blank. Your sublimation might technically “transfer” just fine – but the result is unusable.

Always enable Mirror or Flip Horizontal in your print settings before every single print. Some printer drivers have this setting buried in “Advanced” options. My tip: make it part of your pre-print routine – check mirror, check paper side, check quality setting. Every time, no exceptions.

Sublimation Not Transferring to Specific Substrates

Sometimes the issue is specific to what you’re sublimating onto. If your sublimation is not sticking to one particular type of blank but works fine on others, the problem is almost certainly substrate-related. Here are the most common substrate-specific problems.

Sublimation Not Transferring to Mugs

Sublimation not transferring to mugs is usually one of three things. First, make sure your mug is actually sublimation-coated – regular ceramic mugs from the dollar store won’t work no matter what you do. Sublimation mugs have a special polymer coating that accepts the ink. Second, many ceramic mugs are pressed around 355-400°F for about 180 seconds, but exact settings vary by mug coating and press – always check the supplier’s recommendation first. Third, check your wrap tightness – if there’s any gap between the paper and the mug surface, that area won’t transfer. Use heat tape at the top and bottom edges, plus one strip along the seam to keep everything tight.

Sublimation Not Transferring to Shirts

When your sublimation isn’t transferring to shirts, the polyester content is almost always the issue. Sublimation works best on high-polyester fabrics, with 100% polyester giving the most vibrant results. Lower blends may transfer, but colors will look noticeably more faded. Also make sure you’re using a pressing pillow inside the shirt to even out the pressure, especially around seams, buttons, and zippers. And always pre-press the shirt for 5 seconds first to remove moisture and wrinkles – this alone fixes most fabric transfer problems.

Sublimation Not Transferring to Tumblers

Tumblers can be tricky because the curved surface makes even contact harder to achieve. If your sublimation isn’t transferring to tumblers, check that your shrink wrap is tight enough (or your tumbler press is properly adjusted). Any air gap between the paper and the surface will show up as an untransferred area. For the shrink wrap + convection oven method, make sure your oven is actually reaching 385°F – use an oven thermometer to verify, since home ovens can be wildly inaccurate. Depending on your oven setup, rotating halfway through can help improve evenness.

Sublimation Settings Cheat Sheet

Here are the recommended settings for the most common sublimation blanks. These are common starting points – always follow your blank supplier’s settings first, and adjust based on your specific press and blanks.

Substrate	Temperature	Time	Pressure
Polyester Shirts	385°F	45-60 sec	Medium
Ceramic Mugs	355-400°F	180 sec (3 min)	Firm wrap
Tumblers (press)	385°F	60 sec	Firm wrap
Tumblers (oven)	385°F	6–7 min	Shrink wrap
Mouse Pads	400°F	50-60 sec	Medium
Coasters (Ceramic)	400°F	60 sec	Light-Medium
Metal Signs	400°F	60-75 sec	Medium
Puzzles	385°F	45-60 sec	Light
Glass	400°F	120-180 sec	Light
Ornaments	400°F	60-90 sec	Light-Medium
Phone Cases	400°F	60-90 sec	Light

Remember: These are guidelines. Always do a test press with new blanks before committing to a full project!

My Sublimation Not Transferring Checklist

Before you press, run through this quick checklist. Print this out and keep it next to your press – it catches problems before they ruin a blank!

Before Printing: Print a nozzle check (all colors showing?), confirm paper is loaded coated side down, make sure your image is mirrored/flipped, and set print quality to “High” or “Best.”

Before Pressing: Verify your heat press is fully preheated and check the temperature with an infrared gun. Pre-press the blank to remove moisture, lint-roll it if it’s fabric, then secure the transfer paper with heat tape. Set your timer for the correct duration for your substrate.

After Pressing: Lift the press straight up without sliding, peel the paper according to your paper/blank recommendations, and check that colors are vibrant and the design is complete.

Still Having Problems? Try This

If you’ve checked everything above and your sublimation is still not transferring properly, here are a few more things to investigate.

Sublimation not bright or looking washed out? Try increasing temperature by 5-10°F and adding 15 more seconds of press time. Also double-check that you’re using actual sublimation ink and not regular inkjet ink – this is more common than you’d think, especially with budget printer setups. If your sublimation is faded consistently, moisture is likely the culprit – pre-press every blank!

Getting a yellow tint or no transfer at all? Your ink might not be sublimation ink. Here’s a quick test: smear a little ink on sublimation paper and press it onto a polyester scrap. If nothing transfers or you just get a yellow stain, it’s not sublimation ink.

Colors look wrong (greens are blue, etc.)? You may need an ICC color profile for your specific ink brand. Check out my guide on fixing green printing blue for a detailed walkthrough.

Only some colors transfer? One or more print head nozzles may be clogged. Run multiple cleaning cycles and check your ink levels – you might simply be out of one color.

FAQs

Wrapping Up

When your sublimation is not transferring, it’s almost always one of these nine issues: wrong temperature, wrong substrate, not enough time, not enough pressure, moisture, wrong paper side, clogged heads, paper shift, or a forgotten mirror setting.

The good news? Every single one of these problems has a fix. Start by checking temperature accuracy and heat consistency first, since those are among the most common causes of poor transfers. Then work through the rest of the checklist.

Don’t get discouraged if your first few attempts don’t work out. Sublimation has a learning curve, but once you dial in your settings for your specific equipment, you’ll be turning out perfect prints every time.