The sublimation on plastic mugs raises common questions: whether they can be sublimated in the same way as ceramic ones, what material they use, or why some deform with heat. Although the process is similar, the behaviour of plastic requires consideration of certain key aspects to achieve a good result.

Here we explain what you need to consider, what you need to do it correctly, and how to avoid common mistakes such as deformations or poor finishes, to work with this material safely and achieve professional results.

How do plastic mugs differ in sublimation?

The customisation process for sublimable plastic mugs is very similar to that of ceramic mugs. Therefore, if you already work regularly with this type of product, you won't need to learn a completely new technique or drastically alter your workflow.

The steps, sublimation equipment, and work sequence are practically the same, which makes it easy to incorporate this medium into the catalogue without complications and start producing from the very first moment.

In the case of ceramic mugs, sublimation is possible due to a special polymer coating applied to the surface. Sublimable plastic mugs are made directly from polymer, which eliminates the need for any additional coating. During the sublimation process, the ink integrates into the material itself, allowing for sharp images, vibrant colours, and a durable finish.

Technical aspects to consider

For the customisation professional, the main practical difference lies in the use of an aluminium mould. This accessory is essential to prevent the heat from the transfer press from warping the mug during the process.

Although it may seem that working with customisable plastic mugs increases the cost of the process, in practice, it does not. The use of an aluminium mould prevents the heat from the press from deforming the mug during sublimation. Additionally, one or two moulds are sufficient as they are reusable and will be used in each production, so they do not increase the cost in the medium or long term.

Common mistakes when sublimating plastic mugs (and how to avoid them)

Sublimating plastic mugs is straightforward, but it's advisable to pay attention to certain details to avoid the most common mistakes:

🩹 Avoid marks and shadowsSecure the paper well with heat tape and avoid wrinkles or movement during ironing. Any displacement can cause shadows or duplicated images.

🕔 Control temperature and timePlastic is more sensitive to heat than ceramic. Exceeding the limits can lead to loss of definition, uneven gloss, or deformations. Always adhere to the recommended settings for sublimable plastic mugs.

🧲 Always use an aluminium mouldThe mould maintains the shape of the mug and distributes pressure more evenly, preventing deformations and improving the final finish.

🌡️ Allow to cool before removing the paperDo not handle the mug while hot. Allowing it to cool prevents accidental marks and reduces the risk of deformation.

In this video, you can see the complete customisation process👇

Sublimation on plastic mugs is an excellent opportunity to expand your range of personalised products. These mugs are durable, lightweight, and long-lasting, designed for everyday use.

Incorporating them allows you to offer a practical and safe alternative, ideal for children, outdoor activities, or businesses seeking functional products without compromising on good customisation. A versatile option that easily fits into any range of sublimated products.

If you have any questions, please share them with us in the comments. Our team will be delighted to provide you with answers and assistance. You can also contact our Customer Service department directly for additional help.

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