Just few minutes of being exposed to light & the beautiful pastel colors glow powerfully in the dark for up to eight hours.
Luminary’s consistent elongation & high tensile strength offer optimal performance.
The glowing effect is diminished after each wash, ironing & dry-cleaning session. Luminary has successfully passed 50 wash tests while still retaining some of its glowing power.
More details: 40wt. glow-in-the-dark thread used for sewing, quilting and embroidery. Matte finish. 700 yds.