What is the difference between the white and blue chalk?
The white chalk is basically chalk and the blue is the same as the white except for a small amount of a concentrated blue pigment added to it. Blue is a non-staining color unlike yellow but you must test your fabric to be sure, especially if you don’t want to wash your quilt. Both chalks are non-permanent and will wash out when laundered. Fabrics vary so be sure and test!
