mineral wool
rock wool

Burroughs built his own instead, substituting rock wool for the sheet iron, but still achieved the desired effect.

These products reduce the work (heat loading) that "resistance insulation" such a fiberglass, foam, and rock wool have to do.

So he tucked it into the rock wool between his horns for safekeeping.

Some preliminary studies have raised concern about the dangers of unregulated rock wool.

It will be insulated with noise absorptive materials such as rock wool.

The upper part of the stove is often insulated with rock wool and firebricks.

Working with fiberglass and rock wool can cause skin and respiratory irritation.

For insulation, choose six-inch-thick spun fiberglass or rock wool having a thermal value of R-19.

He suggested to Gray that rock wool in place of excelsior would prevent similar accidents in the future.

She said that some homes might have mineral fiber insulation, including fiberglass and rock wool.