Its superior physical properties combat the difficulties and expense of designing to meet the NEBS GR-63-CORE Fire Resistance testing requirements.

FireWall CO is a glass reinforced composite consisting of high-density cross-linked polymers, and inorganic silicates laminated to both sides of polyimide film.
Central Office Equipment Protection
Low Smoke Production When Flame Is Applied
High Dielectric Strength
Dimensional Stability in Humid Conditions
Puncture Resistant
Thin and Flexible Composite Allows for
High Circuit Board Density
Listed UL 94V-O,5VA(E65069)