2 of 7 Common Sublimation Issues & How to Fix Them | Coastal Business by: Jamie Wisdom
Why is my substrate not accepting sublimation ink?
It is important to note that not all products accept sublimation ink. For dye-sublimation to work, your product blank needs to have a polyester coating (or be made of a polyester material). At Coastal, all of our sublimation blanks come with the required polyester coating.
For fabrics, we recommend 100% white polyester for the best transfer. It is not possible to sublimate on 100% cotton - and your transfer will wash away in the first wash cycle. You can sublimate on poly/cotton blends, but the transfer will appear less vibrant and give a vintage look. In general, the higher level of polyester, the better.