www.pmmag.com/articles/88146-furnace-cement-by-hercules
Furnace Cement by Hercules
April 1, 2003

Hercules Chemical Co.'s new patented Clean 'n Friendly high-heat furnace cement is the first cement on the market that meets OSHA's requirement of less than .1 percent of crystalline silica. It also features an ease-of-use formula, long shelf life, bonding strength and ability to withstand high-heat temperatures up to 2,500 degrees F.
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