Most people associate gypsum ceiling tiles with the ugly drop ceilings of the 60, 70s, and 80s, which usually consisted of lightweight square tiles set into a metal framework. More recently, interior ...
President Joe Biden's Environmental Protection Agency has reversed the agency's approval to add radioactive phosphogypsum wastes to materials used by government contractors to build roads. It ...
Warren Dick has worked with gypsum for more than two decades. You'd think he'd be an expert on drywall and plastering because both are made from gypsum. But the use of gypsum that Dick studies might ...
Gypsum is a naturally occurring mineral that has been used in the United States since Benjamin Franklin first applied ground raw gypsum, called land plaster, on his soils. Today, as Franklin did then, ...
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