Clover Water Soluble Marker is convenient for marking and copying detailed designs for Applique, Embroidery, Handicrafts, Sewing and Quilting. Marking can be easily removed with water. This marker works well even on coarse fabrics. Iron Soluble White Fine-great for marking on dark fabrics. As the ink dries on the fabric, white markings will become more visible and will disappear upon ironing or spraying with water.
you have to really get the ink flowing first, by brawing on a piece of paper or scrap fabric, it comes out faint and then appears to dry up a bit, and then it reacts with the air and starts to activate after about 30 seconds or so and continues to get brighter for a few minutes afterwards. This is by far the best white one we sell and its a nice accurate thin line, we sell lots of them but often people don't understand that it takes a while to show up.