Diagonal Seam Tape

As with most tape, the natural fibers and adhesives may dry out after a few years. If you find it’s not sticking as well as it used to, this may be the cause. I recommend leaving it in a plastic baggie (it comes in a bag for this reason) and that will help prolong it’s adhesiveness.

What is Diagonal Seam Tape?

Diagonal Seam Tape is simply washi tape that is placed on the front plate of your sewing machine to act as a guide while you are sewing diagonal seams.

The tape is strong, thin, sticks well to almost any surface, and comes off easily. Each roll has 10 yards of tape so it should last a really long time.

The red line in the center is aligned with the needle of your machine, and the black lines on either side are 1/4″ to each side from the center of the lines, to represent a 1/4″ seam allowance. The black lines won’t replace a piecing foot with a perfect 1/4″, but act as an extra guide.

The tape removes cleanly, but I recommend removing or replacing the tape often or after each project to avoid any residue on your machine. This tape is not meant to be a permanent fixture on the machine, and long term use without replacement may result in some residue to clean off.

You can use Diagonal Seam Tape anywhere in a pattern that calls for a diagonal seam, or anywhere it asks you to “draw a pencil line or diagonal line from corner to corner on the square”. Anywhere you would draw a pencil line, you can use diagonal seam tape to save so much time!