This is much better for your garments in particular.
Diy heat press mat.
Because heat reflects back up from the mat rather than going through into your work table top you can press at a lower temperature.
80 82 bottom temperature gap between heat mat and seed trays.
Commercial heat mat surface temperature thermometer placed on top of soil.
Diy light heat mat surface temperature.
To control heating times use a thermostat or timer.
73 75 degrees f soil temperature.