How do you heat press 600 denier polyester?

To heat press 600 denier polyester, set your heat press to a temperature of around 270-300°F (132-149°C) and a pressure of medium to firm. Preheat the fabric for a few seconds to remove moisture and wrinkles, then place your transfer on the fabric and cover it with a heat-resistant sheet. Press for about 10-15 seconds, ensuring even pressure, and then allow it to cool before peeling off the transfer. Always perform a test on a sample piece first to ensure compatibility and desired results.