WB-214-C-OB Invisible Marking Ink

, Water-Based Systems


RBC’s WB214-C-OB is a specially formulated water based acrylic marking ink which is visible only under long wave UV light (ie: black light).  This product is formulated in a clear base and is virtually invisible in natural light.  When exposed to a long wave UV light source, such as low intensity black light, the ink fluoresces to a bright neon color.  Ink color is only visible under this type of light source.  WB214-C-OB is a fast, easy, and convenient way to invisibly mark items. Perfect for retail stores, manufacturing processes, quality control, retail, code marking, and anywhere you may need to mark items quickly and invisibly.


  • Code marking
  • Inspection marking
  • Identification marking
  • QC/Pass-Reject Marking


  • Dries tack free in under 5 minutes
  • Low VOC level of 120 grams/liter or 1 pound per gallon
  • Safe/Non toxic
  • Easily applied with brush, stamp, conventional spray, dauber
  • Water clean up


  • Resin: Acrylic Base
  • Viscosity @ 25oC, cps: 150
  • Specific Gravity @ 25oC: 1.02


Keep product tightly capped, in plastic containers.  DO NOT FREEZE.