Fons and Porter Water Soluble Fabric Glue Stick Refill, 2 per package. 2 water-soluble fabric glue stick refills for Fons and Porter Water Soluble Fabric Flue Markers, item 7766, sold separately. Narrow glue stick for precise application. Water-soluble glue washes out of most fabrics. Blue air-soluble ink shows where glue has been applied. Colour fades as glue dries.