Emery cloth is an abrasive similar to sandpaper, but has a cloth backing instead of a paper backing making it much more durable. It is spesifically designed for the metal finishing industry.
SIZE: 25mm width,
10m length
GRIT: P40
The cloth can also be conveniently torn to size. Emery cloth is moreover used for cleaning or polishing.
William H. Dooley, in his book, 'Applied Science For Metal Workers,' traces the first use of abrasives to dried sharkskin that was rubbed on various materials to provide a smooth surface. Approximately 250 years ago, the first primitive sandpapers and emery cloths were produced using a backing coated with glue, sprinkled with abrasive and hung up to dry. Modern abrasives are mass produced to exacting standards.
When talking about sandpaper 'grit' is a reference to the number
of abrasive particles per inch of sandpaper. The lower the grit the rougher the
sandpaper and conversely, the higher the grit number the smoother the sandpaper.
This make sense if you imagine how small the particles on an 1000-grit sandpaper would need to be to fit into a 1' square (25,4mm square). Sandpaper is referred to by the size of its grit (Example 120-grit sandpaper or P120 sandpaper).
YouTube How to use emery cloth for plumbing projects:
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