Covert Ink

Opti Fluorescent products are water-based liquid pigment dispersions with a pronounced fluorescent effect. In normal daylight conditions “Opti Fluorescents” are virtually invisible on paper. However, upon exposure to UV-A light (optimal effect achieved at approx. 366 nm) the very distinct fluorescent color becomes visible (emission at approx. 533 nm).

Company Info

Phone Hours:
9am - 5pm ET Monday-Friday


Main: 828-433-0699

Fax: 828-433-0697



420 West Fleming Drive

Suite A

Morganton, NC 28655


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