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Mineral wool includes slag wool (slag from a metallurgical furnace), rock wool (mineral-derived), or glass wool (sand- or glass-derived), depending upon the raw material from which it is produced. Mineral wool is manufactured by blowing air or steam, or spinning filaments from a molten mass of raw...

...discussed include absorbers, barriers, mineral wool versus fiber glass, diffusing materials, isolation devices, and bass trapping. A layman's acoustical testing method is described....

...materials are generally either fibrous or cellular. Common fibrous material are fiberglass, mineral wool, and ceramic. These are applied as blanket or semirigid sheets which can be cut to shape. Generally, they are film faced or bagged to prevent the fibers from being dislodged and causing problems...

Unlike lip seals and squeeze packings, felt seals require relative little shaft pressure to function effectively. They are commonly used near ball and roller bearings as lubricant retainers. Advantages of felts seals include: Wool felt resists dilute mineral-acid solutions, unless continuously...

Fiber reinforcements dominate composites. The fiber industry is divided between natural fibers -- those from plant, animal, or mineral sources -- and synthetic fibers. Many synthetic fibers have been developed specifically to replace natural fibers because synthetics usually behave more predictably...

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