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Cheap sandpaper was often passed off as glass paper; Stalker and Parker cautioned against it in A Treatise of Japaning and Varnishing published in 1688. [5] In 1921, 3M invented a sandpaper with silicon carbide grit and a waterproof adhesive and backing, known as Wet and dry. This allowed use with water, which would serve as a lubricant to ...
Given the recent merge, in which it was decided that sandpaper is the COMMONNAME for a coated abrasive, it now seems sensible to merge two other stubs to this page: Crocus cloth (a type of coated abrasive used in jewelry-making) and Emery paper (a type of sandpaper with a particular abrasive).
Thermo-Fax (very often Thermo fax [1]) is 3M's trademarked name for a photocopying technology which was introduced in 1950. [2] [3] It was a form of thermographic printing and an example of a dry silver process. [4] It was a significant advance as no chemicals were required, other than those contained in the copy paper itself.
China has launched a national plan to address the rapidly growing prevalence of dementia, which authorities say is becoming "a widespread societal concern" and poses "significant challenges" to ...
The Federal Reserve announced another cut to its benchmark interest rates yesterday, dropping the Fed rate by 25 basis points to a range of 4.25% to 4.50% — the third consecutive time it's ...
Fortune 500 companies, burgeoning crypto firms and individual billionaires are racing to help underwrite Donald Trump’s upcoming inauguration – pledging seven-figure donations apiece to next ...