I am looking to start my sublimation printing learning curve with some coasters, and have a couple of questions:
1. Has anybody printed with both Unisub hardboard backed coasters and MDF (black back) coasters? The MDF coasters are less expensive, but are they significantly lower quality, or more difficult to work with?
2. Do you use a Teflon sheet or some sort of paper to prevent ink marking on the heat press platten for this kind of product?
Thank you.