I thought that the chalk used for tailoring was a different formulation that allows the chalk to be removed easily. Might be wrong, but I would proceed with caution and do lots of testing with scrap fabric! Good luck. If it works, it will be a good savings.

I found the white chalkboard chalk a little difficult to come off fabric but worth a try. It came off except right where the needle went into the fabric, left a white dot. Will probably come out when washed but some wallhangings I don't plan on washing.

I would be cautious with the blue and red. I remember my kids having that sidewalk chalk stain their clothes-some never did come out.

Actually they tell you not to "pounce" the powder with a pounce pad. ??? I really don't know why they chose to call it pounce if that's not the way it works. You're actually supposed to just rub it across the stencil with a loaded pounce pad. I have a pounce pad too, but haven't used it much yet. It does work, though. The pounce pad was a recent acquisition that came with my new long arm. :) The lady I bought it from wasn't using it and threw it in. Lucky me! I love the way it works, and considered using my chalk trimmings in the pad, but was afraid maybe the powder would be too large grained. That was when I decided to try it with maybe a large makeup brush and stencil. Like a loose powder brush. It will be interesting to see the outcome. I'm just not to the stenciling stage yet on my current project (got sidetracked with a small upholstery job). Soon, very soon..... I'm anxious to try it out.

Test that chalk on some scraps before using on a quilt! I have seen too many clothese stained when kids are playing with it. It might not wash out easily.

I have used chalk many times and had no problem washing it out. I use regular chalkboard chalk and sharpen it. If it is something that I don't want to wash I use a damp washcloth and lightly go over the chalk lines. It has always work for me.