When printing on stretchy materials such as spandex or leggings, you need an ink that will stretch along with the fabric. FN Ink Plastisol Screen Printing Ink Stretch Additive does just that. Use as an underbase or mix with any plastisol ink to add elasticity, helping prevent cracks in finished prints. This additive works best with other low-cure inks, but it can also be added to standard inks to reduce cure times for quicker production runs. - FN Ink Plastisol Screen Printing Ink Stretch Additive - QuartFn-ink, STRETCH ADDITIVE QRT -