On its own, melamine is just an organic base in the form of white crystals. But when combined with other compounds, it can transform into a plush foam—the Magic Eraser—with a sandpaper-like microscopic texture. What were old erasers made of? 1. The original erasers were bread. Moist bread. Until theRead More →
When you rub an eraser across a pencil mark, the abrasives in the eraser gently scratch the surface fibers of the paper to loosen the graphite particles. The softeners in the eraser help to prevent the paper from tearing. The sticky rubber in the eraser grabs and holds on toRead More →
The metal band that attaches the pencil body with an eraser is called a “ferrule”. What is a pencil rubber? An eraser, called a rubber in some places, is an item used to remove the marks left by pencils and some types of pens. Modern erasers come in all colorsRead More →