What's melamine sponge/magic sponge/nano sponge

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In the early 21st century it was discovered that melamine foam was an effective abrasive cleaner. The open-cell foam is microporous and its polymeric substance is very hard, so that when used for cleaning it works like extremely fine sandpaper, getting into tiny grooves and pits in the object being cleaned. On a larger scale the material feels soft.

Rubbing with a slightly moistened foam may remove otherwise “uncleanable” external markings from surfaces.


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