... in quilted mattresses & in hardsetting compositions, pipe covering in coaxial tubes, compression molded pipe half sections.l CryogenicsSuper-cooled industrial gases ... bricks & tiles, pottery & refractories, non-load bearing fill, tunnel walls & pipe coating, floors, masonry, roofs, pipes-leveling, insulationl Air FiltrationPre-coat ... adsorption for pollution control & clean up. Perlite--how it works