This product is heat resistant but still contucts heat so you’ll need to use this with an ironing board or ironing mat.
Every sewing-room iron needs a Teflon Non Stick Applique Mat nearby. Protect your iron from excess glue and fusibles that are sticking out from your project as you iron. Or, assemble your individual applique pieces to this sheet to creat a bigger applique and keep your glue intact. Essential if using double-sided fusible anything, to protect your ironing board or mat.