Now then guys and gals,
I'm having a wee bit of bother with enamel mugs. I've been trying to use TMT CPM to get an image onto a Falconware 8cm dia white mug with blue rim.
I'm heat pressing the transfer and mug in a mug press at 170 deg C for 100 secs, but the rim of the mug keeps cracking and splintering off under the heat and pressure. I've tried to internally support the opening of the mug by wedging it (because my first efforts immediately cracked under the tightening pressure of the press) but that has only lessened the effect because as the temperature increases, the mug must expand cracking the rim.
If I lighten the pressure the transfer wont take.
Can anyone see what I'm doing wrong or suggest a remedy?
Or should I just resort to waterslide?
Thanks in advance
Simon