Sublimation Help

Sublimation is picky. It only works on items that are made for it. If you try to sublimate on plain cotton or an uncoated mug, the print might look okay at first but it’ll wash right out.

Always make sure your blank is labeled ‘sublimation ready.’

What works best:

1. 100% polyester shirts


2. Poly-coated ceramics and mugs


3. Aluminum panels


4. Glass with a sublimation coating


5. Neoprene blanks

What doesn’t work:


6. Cotton shirts


7. Untreated metal


8. Wood


9. Anything dark colored

Pro Tip: Light colors make the brightest prints. Sublimation ink is transparent, so it only shows on white or light-colored blanks.

For shirts, hoodies, or other fabric items, polyester is your best friend.

Polyester Content	Result
100% polyester	Sharpest, most vibrant
65%+ polyester	Still good
Below 65%	Faded look

Important: Light colors only. Sublimation ink is see-through, so it only shows up strong on white or pale fabrics. Dark shirts just don’t work.

Before pressing, always lint-roll your garment. Those tiny fibers can leave fuzz spots in your design once the heat hits.

Sublimation mugs and tumblers aren’t just ‘any mug.’ They’re coated with a polyester finish that lets the ink transfer.

Regular ceramic or stainless won’t hold a print, no matter how hot or long you press.

Before pressing:

1. Peel off any protective film (some blanks ship with a clear wrap)


2. Double-check you’re working on the coated side


3. Follow manufacturer’s instructions on stacking or padding

Metal sublimation blanks usually come with a thin protective film. Always peel it off before pressing. If you forget, you’ll ruin both the print and the panel.

Prep steps:

1. Remove protective film


2. Wipe with lint roller or rubbing alcohol


3. Let dry completely before pressing

Caution: Metal blanks stay hot much longer than fabric or ceramic. Handle with care after pressing.

Neoprene makes great sublimation products like koozies, mousepads, and keychains, but it comes with a few quirks.

Important notes:

1. Good ventilation is a must – neoprene can give off fumes when pressed


2. Always lint-roll before pressing


3. Press one side at a time


4. Use light adhesive spray instead of heat tape (tape can leave marks)

After pressing, lay the item flat under something heavy while it cools. This prevents curling.

Material	Temperature	Time	Pressure
Apparel	385-400°F	45-60 sec	Medium
Mugs	400°F	180 sec	Per mug press
Metal Panels	400°F	60 sec	Medium
Neoprene	400°F	45-60 sec	Medium

All materials: Pre-press to remove moisture, use butcher paper above and below, secure transfer with heat tape or spray.

Sublimation takes a little more heat and time than DTF, and every blank has its own sweet spot.

The golden rule: Always check the manufacturer’s recommendations.

Before pressing:

1. Pre-press your blank for a few seconds to remove moisture and wrinkles


2. Use butcher paper above and below to catch stray ink


3. Lock your design down with heat tape or spray

Pro Tip: Write down your settings when you find the ‘sweet spot.’ Presses vary, and notes save you from guessing next time.

For shirts, hoodies, and other poly fabric items: 385-400°F for 45-60 seconds with medium pressure.

Best practices:

1. Lint-roll the fabric before pressing


2. Pre-press for 3-5 seconds to remove moisture


3. Tear the edges of your transfer paper (helps avoid press lines)


4. Use a pressing pillow under seams or zippers

Press at 400°F for about 180 seconds in a mug press.

Key points:

1. Wrap the transfer tight and tape it securely


2. Even a slight gap can leave blurry edges


3. Check manufacturer’s stacking or padding instructions


4. Always press on the coated side of the mug

Press at 400°F for about 60 seconds at medium pressure.

Checklist:

1. Remove protective film first (costly mistake if forgotten)


2. Wipe with alcohol or lint roller, let dry


3. Use butcher paper on top and bottom


4. Handle carefully after – metal stays hot longer

Press at 400°F for 45-60 seconds with medium pressure.

Special considerations:

1. Press one side at a time


2. Use adhesive spray instead of heat tape


3. Ensure good ventilation (neoprene can release vapors)


4. Place under heavy flat object while cooling to prevent curling

Sublimation prints are permanent. They won’t peel or crack, but how long they stay vibrant depends on how you treat them.

General rules:

1. Avoid harsh chemicals


2. Don’t expose items to extreme heat for long periods


3. Constant sunlight will fade anything over time

Polyester shirts and garments need a little TLC to stay bright.

Washing instructions:

1. Wash inside-out in cold water


2. Use mild detergent


3. Tumble dry low or hang dry

Avoid:


4. Bleach


5. Fabric softeners


6. Harsh detergents


7. High heat

Sublimation mugs are tough, but the dishwasher isn’t gentle. Even ‘dishwasher safe’ blanks will fade faster after repeated hot cycles.

For longest life:

1. Hand-wash with mild soap


2. Use a soft sponge


3. No steel wool or harsh scrubbers

Metal panels, neoprene items, and coated boards are all easy to care for.

Simple care:

1. Wipe with a soft cloth and gentle cleaner


2. Avoid abrasive pads or strong chemicals


3. Neoprene can be spot-cleaned with mild soap and water


4. Make sure neoprene dries flat to prevent curling

Check these first:

1. Verify your press temperature with a surface thermometer


2. Make sure you’re using sublimation-ready blanks


3. Check that time and pressure settings are correct

Regular cotton or uncoated items simply can’t hold vibrant ink.

A faint duplicate image almost always means the transfer shifted during pressing.

Prevention:

1. Lock your design down with heat tape or spray


2. Open and close the press smoothly


3. A quick jerk can move the paper just enough to double the image

Check the polyester content of your shirt.

Anything below 65% poly won’t ever look bright, no matter the temp or time. Stick to 100% polyester for the most vivid results.

This happens when the edge of the transfer paper leaves a line.

Fix: Tear the edges of your paper instead of cutting with scissors. The feathered edge helps blend the heat so it doesn’t leave a sharp square.

Make sure your transfer is wrapped tight and taped securely.

Any gaps between the paper and mug can leave faded spots or blurry edges.

Even ‘dishwasher safe’ coatings can fade with repeated high-heat cycles.

Solution: Hand-wash with a soft sponge for longest-lasting colors.

Double-check that you peeled off the protective film before pressing.

It’s an easy step to miss. Also make sure the surface is clean and completely dry.

That’s normal for neoprene. It wants to curl while it’s still hot.

Fix: Lay it flat under something heavy while it cools, and it’ll settle back into shape.