I think we are talking about two very different items here. The teflon sheet or parchemnt paper is used on top of the ironing board, but under the fusible to keep the fusible from sticking to and ruining the ironing board cover. The pressing cloth is a thin cloth used on top of the fusible when you are ironing it to the block you are working on. When the directions say to use steam to affix the fusible to the block, I use a damp flour sack dish towel. It adds extra steam to adhear the fusible. I have a teflon sheet and I have also used parchment paper and the dollar story oven liner. All work equally well in my opinion.