The Silicone Appli-Fuse Mat is made of a silicone and glass fiber material that is heat resistant up to 500 degrees F (260 degrees C.). That means it is the perfect surface for all of your fusing, ironing, and gluing needs.Fusible AppliquePlace the applique design under the Appli-Fuse mat. Since the mat is transparent, the cut applique shapes can be...