- Sun Mar 31, 2024 3:08 pm
#17303
What Cechflo usually does is glue down, using normal contact adhesive by applying it with a small brush, the seam allowance. He then as you mention will use twill tape over the glued down seam allowance. What I sometimes do is use a spray can of adhesive on the exposed seam allowance and one side of the twill taps. I have taken a piece of shin cardboard (picture framing matting board, and cut a 3/4" slit in it. I place that over the folded over seam allowance and give it a quick shot of adhesive from the spray can. This keeps it from getting over everything. I place the twill tape on top of some cardboard and lightly dust it also with the adhesive. After setting up a bit place the twill tape over the seam allowance and sew.
This helps keep everything in place while sewing a French seam. If pieces are not too wide, over 12-14" I can now handle them without any adhesive but if they are wide and I have a lot of material on my sewing machine table I"ll still use the adhesive twill tape method.
Hope this helps a bit.