If your fabrics are sheer or especially delicate, a bias tap bound seam may actually be too heavy. In this case, you may want to bind the seam using tricot, which is a lighter and more delicate fabric. It will work well with other fabrics of a similar weight.
To sew a tricot bound seam, cut a long piece of tricot about the width of the seam allowance. Fold this piece of tricot strip in half lengthwise and encase the raw edge of the seam allowance. Stitch along the edge of the tricot strip using either a zigzag or a straight stitch.
Remember to press your seam open before beginning. Also make sure the tricot you're using won't shrink when you wash the garment or item in question. When in doubt, pre-shrink your fabrics before you begin.
