DSF

It might, there are many reasons as to why you get the banding, heat press, printer issues, mug coating issues and my suggestion is just one of them. From my understanding you can get the banding when the bottom of the mug (always the coldest part) is not the same temperature as the rest of the mug. By pre warming you remove this problem.

As well as increasing the pressure you will not do any harm if you also pre warm the mug before pressing.

Another way you can do it (depending on your press) is by pressing the mug from cold. Put the mug in the press and then start to heat it up. This way the mug will be an even temperature all round.

You can pre heat by just putting the lowest inch or so in the press for 20 seconds to get some heat in the base. Great advice with the griddle.

Mr Giraffe, last year i dug out my old hostess heated tray, and my hubby scoffed at me, when i put our mugs on it, before that they were going into the oven for a short while to heat up, as no heating at the unit, glad to see someone else uses same kind of thing, really find it good for the elgrande

Right thanks for the advice I've increased the mug pressure I will pre heat mugs and see how I get on