Abstract: A composition of a wax-based vehicle, suspension medium, and pigment particles to provide a marking material having a substantially uniform suspension of pigment particles and a method for its manufacture. The marking material includes a wax-based vehicle, a suspension matrix, and, if desired, a particulate suspending agent. The suspension matrix is formed by mixing together a long flow viscosity modifier and at least one short flow viscosity modifier. The particulate suspending agent is typically a micronized particulate substrate. The pigment particles impart phosphorescent or other desirable marking effects.

Abstract: An erasable marking material with a wax-based vehicle having a substantially uniform suspension of filler particles and pigment particles and a method for its manufacture. The wax-based vehicle is composed of a base wax and at least one supplemental wax. The wax-based vehicle has an oil content of up to about 10 percent by weight. The wax-based vehicle and suspended filler particles exhibit anti-settling properties for the suspension of fluorescent particles. The pigment particles impart luminescent properties to the marker. When rubbed across a surface, the marker deposits the wax-based vehicle and fluorescent particles to producing an erasable luminescent mark.