Here’s How You Can Sublimate on Glass Cups

Sublimation printing is a popular method for creating personalized items, but many people are unsure if it’s possible to sublimate on glass cups.

In this blog post, I’ll explain the ins and outs of sublimating on glass cups and provide a step-by-step guide on how to do it correctly. And all of this in 7 easy steps.

hand holding a pink frosted glass can with a lid

What is sublimation printing?

Sublimation printing involves using sublimation paper and high-quality ink to transfer a digital design onto a surface.

During this process, the ink turns from a solid to a gaseous state, bypassing the liquid phase, and adhering to the surface.

This results in vibrant colors and durable prints on various substrates, including glass tumblers.

Can you sublimate on glass cups?

Yes, you can sublimate on glass cups, but it requires some extra steps compared to sublimating on other surfaces like ceramic mugs. Here’s what you need:

Glass sublimation tumblers or glass mugs with a special coating for sublimation.
Sublimation coating for glass surfaces, if you’re using regular glass cups.
Sublimation transfer paper for printing your digital designs.
A heat press machine or a convection oven for applying heat.
Heat-resistant tape to secure the design in place.
A lint roller and butcher paper to prep the glass surface.
A heat gun or shrink wrap to cover the entire design area.

Small blue sublimation oven with wrapped tumblers inside

Step-by-step guide for sublimating on glass cups

Create your design using graphic design software like Inkscape or Adobe Illustrator, and print it on sublimation transfer paper with Epson sublimation ink or another high-quality ink.
Use a lint roller to clean the glass surface, removing any dust or debris.
Apply the sublimation coating to the glass surface if necessary, following the manufacturer’s instructions.
Secure the printed design onto the glass cup with heat-resistant tape, ensuring it’s properly aligned and wrinkle-free.
Cover the entire design area with shrink wrap or use a heat gun to create a tight seal, protecting the design during the heating process.
Place the glass cup in the heat press machine or you can also sublimate glass in a convection oven and follow the recommended temperature and time settings for glass sublimation (usually around 400°F for 12-15 minutes).
Carefully remove the glass cup from the heat source, using heat-resistant gloves, and allow it to cool to room temperature.
Peel off the transfer paper and tape, revealing your beautiful sublimated design on the glass cup!

A pack of shrink wrap sleeves spread out next to a blank sublimation tumbler on a marble surface.

Conclusion

Sublimating on glass cups is an excellent way to create personalized items for personal use, gifts, or even as a side business.

By following the step-by-step tutorial and using the right craft supplies and sublimation software, you can achieve stunning, vibrant designs on glass cups that will last for years.

With a bit of practice and creativity, the possibilities are endless!

Need more tips and ideas? Check out my post on all the materials that can be sublimated and if you mess up your cup, then here’s how to fix mistakes on glass tumblers.

FAQ

What temperature do you sublimate glass cups?

The recommended temperature for sublimating glass cups is around 400°F (204°C). Always follow the manufacturer’s guidelines for the best results.

Can you heat press glass cups?

Yes, you can use a heat press machine specifically designed for glass cups, such as the PYD Life Tumbler Press. Ensure the press has a heat plate or Nomex pad that conforms to the shape of the glass cup for even heat distribution.

How do you sublimate clear glass cups?

To sublimate on clear glass cups, you’ll need to apply a special sublimation coating to the glass surface. Follow the step-by-step guide above for a successful sublimation process on clear glass cups.

What kind of cups can you sublimate on?

You can sublimate on various types of cups, including ceramic mugs, glass tumblers, and even some plastic cups with a special coating. Make sure the cups are designed for sublimation or have a sublimation coating applied for best results.