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YankeeMarshal这个视频下面的comment里第一条就提到了，Scotch Brite是abrasive的：
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Sixgunner dot org
1 year ago
Not only is this an incredible waste of time, Scotchbrite pads do remove material.
我上网上搜了一下，维基百科的解释说的很明白：
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Scotch-Brite is a line of *abrasive* cleaning pads produced by 3M. The original product line consisted of spun polypropylene fiber with about nine grit variations.[1] Scotch-Brite also contains "Alox", which is a trade name for aluminum oxide. Although polypropylene may be considered benignly soft, its composition with aluminum oxide greatly enhances its abrasive powers; to the extent that a Scotch-Brite pad will actually scratch glass. Aluminum oxide has one of the highest hardness coefficients of all oxides, though the much more expensive diamond abrasives still exceed it in hardness.
Scotch-Brite, and similar abrasives, have largely replaced the use of bronze wool, which had been used as a non-rusting alternative to steel wool, for use on materials such as oak that would be sensitive to rust.
https://en.wikipedia.org/wiki/Scotch-Brite
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楼主
发表于 2017-9-19 21:18
