Sorry to hear you are experieincing some difficulties with Siser EasyWeed. Time, temperature & pressure are things to look at when a product does not seem to be working. While a range wil work when applying our materials, 302 degrees Farenheit is the recommended temerature to apply EasyWeed. If you find that you need to increase the temperature on your heat press, it is probably not giving you an accurate reading. Lower temperatures are far better than using high heat. Why? High heat causes scorching(light fabrics turning yellow), migration(bleeding), & if the heat is high enough the adhesive will turn to liquid & penetrate the fabric so there is nothing between the skin(PU) & the fabric. We even recommend lowering the temperature to 280-285F to avoid any of these problems. Although this product can be applied in one step, many prefer to seal it in with a second aplication for a few seconds. This gives it a softer, more textured look.
I will be more than happy to help you. Please call me, Kathleen Servais at 440-665-5576.
Happy Printing!!