3
Do you know why the eraser has a blue side? You can’t just use the hard end of the eraser on paper.
That’s what the blue side of the eraser is for
The blue side of the eraser is rougher and harder than the red side.
- The history of the eraser goes back to the 18th century, when breadcrumbs were used instead of rubber to remove pencil marks. It was only with the discovery of natural rubber that the eraser developed as we know it today.
- The two-color version was introduced later to meet different needs. The soft side is for normal pencils and the harder side is for more stubborn marks or other surfaces.
- The blue side of the eraser contains coarser abrasive particles. This special composition makes it possible to remove deeper-seated pigments, for example with ink or ballpoint pen that is not just on the surface of the paper.
- In this process, not only the color is rubbed off, but actually a fine layer of paper in which the color pigments have become embedded is also removed.
This is how the blue side of the eraser works
You have to be careful when using the blue side of the eraser.
- As already mentioned, the blue side of the eraser removes entire layers of paper. Too much pressure or repeated rubbing can severely damage the paper. Therefore, the blue side should be used carefully and purposefully.
- The blue side can also be used on other surfaces. On wood, it can remove fine pencil marks or other marks.
- On stone or rough surfaces, it helps to remove stubborn residue or discoloration. This is especially useful if you want to paint on stones and sketch with a pencil beforehand.
