I purchased this to use on my niece's school backpack and water bottle. With one coat of top coat epoxy, the vinyl still changed color in the sunlight too!Will definitely use again.CON - there was no chart to show which vinyl changed to whatever color. I used a UV lamp to figure it out and wrote on the back the sunlight color. That will help me decide quickly in the future which color to use.

These are great color changing vinyl. Only drawback is you need to put in sun to see the colors before using them.

I made my toddler a couple of shirts for the summer using this vinyl, and it’s a huge hit with daycare teachers and friends alike. Everyone loves to see the “magic” shirt in action. I made one with just the white to blue, and another with multiple colors. It was easy to use with my Cameo 4 using a vinyl - glossy setting, and an HTVFont easy-press-like iron. I can’t remember the exact heat setting I used, but Google is your friend here, since the manufacturer didn’t provide instructions on what temperature or how long to press (my only complaint). I did purchase this on sale, and would gladly do so again. I’m excited to see what else I can come up with to use the other colors.