Owens Corning, long famous for its pink fiberglass, has just introduced a new fiberglass. And it's white. It is produced by fusing two different types of glass together, which results in a curving, twisted fiber that is naturally springy. Miraflex is produced by fusing together two different types of glass, which gives the fiber a curving or twisted configuration and eliminates the need for binders to hold the fibers together. Because Miraflex is more springy than conventional fiberglass and made without binders, rolls can be packed more tightly, which improves shipping efficiency.
Miraflex fiber offers several important environmental benefits.
First, the fiber appears to be safer from a health standpoint. The fibers are more resilient, stronger, and less prone to breakage, so fewer fiber particles will get into the air or into the installer's skin. The company describes the material as non-itchy. Because of these characteristics, insulation produced with Miraflex might not have to carry the warning label currently required by OSHA on other fiberglass products. Second, because the fiber is twisted, a binder is not required to hold batts or loose-fill insulation together.