I used HeatnBond Iron-On Adhesives and it isn sticking to my project…why?
A. All fabrics to be used MUST be laundered (without any fabric softener in the washer OR the dryer) prior to ironing on the adhesive. The laundering process will remove any “sizing” or coatings that exist on the fabrics when purchased. Sizings can inhibit the bond from occurring correctly. In the same way, Fabric Softener of any kind in the washing or drying process can have the same effect of inhibiting the bonding process. Otherwise, the heating time may need to be adjusted depending on the thickness of the materials to be bonded. A thicker piece of material or several layers may need a slightly longer heating time…by a few extra seconds. Do NOT overheat! Overheating can cause the adhesive to melt into the fabrics and not allow the pieces to stick together.