METHOD FOR PREVENTING AND DETECTING TAMPERING OF SCRATCH-OFF COATINGS ON SUBSTRATES, AND ASSOCIATED SUBSTRATES

摘要

A method (and associated substrate) is provided for deterring and detecting fraudulent removal of a scratch-off coating (SOC) from a substrate having a scratch-off area. A scratch-off coating is applied over the scratch-off area. An overcoat material is applied over the scratch-off coating. The overcoat material is formulated with a reactant that reacts with chemicals used in assisted mechanical lift attempts and produces a visual indication of the use of such chemicals in an attempt to tamper with the SOC to discern images or indicia underlying the SOC.