Overall, Teflon sheets are generally better than parchment paper for heat press. However, Teflon is bad for dye sublimation.

Documents show that DuPont — unlike state authorities — had known of the danger for decades but continued to discharge the toxic substance into the environment. Some animals with high PFAS concentrations experience changes in their hormone levels as well as to their liver and thyroid function. There has been little research on their impact on ecosystems. From the atom bomb to the kitchen cupboardTeflon sheets are excellent insulators that can trap heat, resulting in hot spots. This can result in inconsistent or uneven heat distribution during sublimation printing. On the other hand, the Teflon sheet is commonly used as a protective barrier between the sublimation transfer paper and the substrate during the heat transfer process.

This effect is also followed by bubbles forming underneath the transfer sheet that gives undesired results. Sometimes, this also leads to ghosting of the ink which can lead to poor print quality.

How can I protect myself?

Also, Teflon sheets have a low thermal conductivity, which makes them ineffective at transferring heat. Teflon sheets can act as a barrier to slow down the heat transfer from the heat press to the substrate when they are put in between the two.

While the health effects of overheated Teflon may be serious, using commonsense cooking practices will help you avoid exposure. Summary This made me wonderabout the levels of forever toxins in my own body.Finding out is not easy asthere are very few specialist labs in Germany able to perform the necessary tests. But I managed to locate one,IPASUM, in the southern city of Erlangen. Teflon sheets are specially engineered to withstand incredibly high temperatures, up to 500°F in some cases. This makes them ideal for sublimation which requires larger heat transfers. Although Teflon sheets can be used so many times since these can be cleaned up even after they get the stains from the transfers.A small number of case studies have also reported more serious side effects of exposure to overheated Teflon, including lung damage ( 20, 21, 22, 23).