Why do certain dry-erase markers cause more ghosting than others?

Marker formulation is the primary reason some markers ghost more than others. Cheaper dry-erase markers use pigments that penetrate the whiteboard surface slightly rather than staying on top — this penetration is what causes ghosting (residual color left after erasing). Quality dry-erase markers use formulations specifically engineered to stay on the surface. Alcohol-based markers (which most dry-erase markers are) evaporate faster, but some formulations are more prone to surface penetration than others. Other factors: highly pigmented (very vivid) colors and permanent markers mistakenly used on whiteboards cause the worst ghosting. On a lower-quality melamine surface, even good markers cause ghosting faster than on porcelain or glass. Using quality markers on quality surfaces minimizes ghosting significantly. FindOfficeFurniture.com — call 888-719-4960.