The main plaster varieties include the gypsum, lime, and cement categories. Each one is used in different ways, but all have roughly the same drying time, a few days to several weeks, for some ...

Two key materials used in home construction, softwood lumber and gypsum products including lime, are largely sourced from Canada and Mexico, respectively. Nearly 70% of U.S. softwood lumber ...

In 2023, nearly 70% of U.S. builders’ sawmill and wood products came from Canada, while 71% of lime and gypsum products came from Mexico, according to the National Association of Home Builders.

Sarah said a bulldozer contractor would break up the wall of the mine to bring up the gypsum and lime product, before it’s loaded into a crusher for processing. “We’re only small mining ...