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Cure Temp Guide

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These are common starting points. The technical data sheet for your exact ink always overrides them.
1 · Ink
Ink type Show in

Reference table (starting points)

InkTypical full cureFlash goalNotes
Plastisol (standard)~260–330 °F (127–166 °C) by ink (sources differ), reached through the whole ink film. Check the ink’s TDS.Gel: dry to the touch, not fully curedPlastisol does not air dry; it must reach fusion temperature. Many standard inks list about 320 °F; follow the number on your ink’s TDS.
Plastisol (low-cure)~250–300 °F (121–149 °C) by ink; many lines ~270–300 °F. Check the ink’s TDS.Gel onlyMade for heat-sensitive fabrics and to reduce dye migration on poly. Use the maker's exact number.
Water-basedPer the ink’s TDS. Many list ~320 °F (160 °C) for 2–3 min after the water has evaporated; some allow lower temps with longer dwell.Partial dry (light flash) between colorsNeeds the water driven off and curing heat, so dwell is usually longer than plastisol. Forced-air dryers help. Some inks use additives that change cure.
DischargePer the ink’s TDS. Typically ~320–350 °F (160–177 °C) for about 90 s–3 min to fully activate and cure.Light flashWorks only on discharge-able (dye-reactive) cotton garments. Mix in activator per the maker's pot life. Ventilate the dryer area.

How to verify cure

  • Measure the ink film temperature, not just the dryer setting: use a thermometer probe, temperature strips or a donut probe through the tunnel.
  • Do a stretch test on plastisol after the print cools: cracking suggests under-cure.
  • Do a wash test on a sample before running the order.
  • Heavier deposits, darker garments, airflow and belt speed all change how hot the ink actually gets.

Flash tips

  • Flash just until the ink is dry to the touch. Over-flashing can cause scorching, platen heat build-up and poor intercoat adhesion.
  • Platens warm up during a run, so flash times often get shorter as the job goes on.