The recycled materials are primarily slag wool and cellulose fiber. Slag wool is made from a recycled waste product of steel production.
Cellulose fiber is made from recycled newsprint.
Armstrong mineral fiber and wood fiber ceilings also contain renewable and natural mineral, including starch, perlite and clay. Starch comes from renewable agriculture resources. Perlite and clay are natural materials. Armstrong has recently started a program which involves the reclaiming of used ceiling tiles. The manufacturer will collect recyclable used tiles, break them down and use the material for the manufacturing of new products.