Usually used in packing and shipping operations, a sealing iron can be a nifty tool to keep on hand in a sewing and design workroom too. It is a little larger than the miniature irons sold in fabric and craft stores – making it easier to use and handle – but not nearly as cumbersome as a regular iron.
Around here, we’ve got this little guy: Introducing the Thunder Tiger
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Sealing irons come in a number of shapes and sizes. You want one that has a point and a rheostat, is preferably teflon coated, and has a slight convex curve to the sole plate.
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It is going to allow you to get into little pleated and turned nooks and crannies easily while the curve of the sole keeps the heat constant but without the pressure a flat sole would put on the fabric below the pressing area.
Because of the way they are shaped, you will want to either buy a metal stand for it or rest it upside down over a clapper or wooden anvil.