The Grog Cutter 08 is equipped with a Quickflow 08 polyester tip & comes filled with Grog Black Magic Ink - an alcohol and water-based dye invisible ink, optimised for Grog Cutter markers.
It reacts only under UV lights, at which point it turns a deep dark brown satin finish.
Ideal for both indoor and outdoor sessions, it works on porous surfaces only such as cardboard, paper, wood, concrete etc
Always wear gloves to avoid stains on hands. To activate the chemical reaction, the ink must be exposed to direct light. Don't expose or stock the bottle in direct light. Contains alcohol-based solvents, use in well ventilated areas.
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