Eli5: Why do magic erasers work so well?

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Today I had some students draw all over my classroom walls with markers and when I went to go wipe them with a wet paper towel it just smeared a bit. But when I used a wet magic erasers it came right off. What’s the difference and why does the magic work so well compared to paper towel?

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11 Answers

Anonymous 0 Comments

A magic eraser is literally just very fine sandpaper, which is why you need to be very careful using them. A paper towel is just fabric.

Magic erasers will 100% take the paint off your walls on top of whatever marker/crayon/scuff you’re trying to get off because you’re essentially sanding your walls. You’re not just trying to soak up the marker with fabric, you are using an abrasive to take material off the walls.

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