1 Ounce Invisible Blue UV Fluorescent Ink

1 Ounce Invisible Blue UV Fluorescent Ink

Regular price $20.00 Sale

1 oz bottles of invisible Blue UV fluorescent ink for permanent security marking on porous and semi porous surfaces. It can be used in inkjet cartridges, to fill your own pens, applied with a stamper, a brush, mixed into a clear or blue screen printing base, and more. It is totally invisible under standard lighting conditions, and it fluoresces 'brilliantly' under long wave UV or 'black light' lighting.