Editing Mineral wool (section)

== History ==
Slag wool was first made in 1840 in [[Wales]] by Edward Parry, "but no effort appears to have been made to confine the wool after production; consequently it floated about the works with the slightest breeze, and became so injurious to the men that the process had to be abandoned".<ref>Spon, Ernest. [http://hdl.handle.net/2027/mdp.39015063827573?urlappend=%3Bseq=449 ''Workshop Receipts''] ... London: E. & F. N. Spon, 18831892. Page 439</ref> A method of making mineral wool was patented in the United States in 1870 by John Player<ref name="Appleton">"Mineral Wool or Mineral Cotton", ''Appleton's Annual Cyclopedia and Register of Important Events of the Year 1891''. New Series vol. 16. New York: 1892. 528. Print.</ref> and first produced commercially in 1871 at [[Georgsmarienhütte]] in [[Osnabrück]] [[Germany]]. The process involved blowing a strong stream of air across a falling flow of liquid iron slag which was similar to the natural occurrence of fine strands of volcanic slag from [[Kilauea]] called [[Pele's hair]] created by strong winds blowing apart the slag during an eruption.<ref name="Appleton" /> 

[[File:Hallway insulation.jpg|thumb|Common insulation applications in an [[apartment building]]]]

According to a mineral wool manufacturer, the first mineral wool intended for high-temperature applications was invented in the United States in 1942 but was not commercially viable until approximately 1953. More forms of mineral wool became available in the 1970s and 1980s.<ref name=":1">{{Cite web|url=https://www.htiwcoalition.org/producthistory.html|title=HISTORY OF HTIW PRODUCTS|access-date=2018-08-08|archive-url=https://web.archive.org/web/20180819150513/http://htiwcoalition.org/producthistory.html|archive-date=2018-08-19|url-status=dead}}</ref>