Prevents fabric from fraying and secures thread ends. Washable and Dry Cleanable Fray Check will not discolor or stain most fabrics. Always test on an inconspicuous seam to be sure. 1. Place a piece of cardboard between area being treated and other fabric layers. 2. Unscrew blue cap and puncture tip with fine pin. 3. Gently squeeze bottle and apply very small amount of Fray Check. 4. Allow to dry for 15-30 minutes.