Historically, low cost polyester (PE) and polypropylene (PP) reinforced composites were not suitable for enclosed applications such as buildings, tunnels, and transportation vehicles because of fire danger. Now, Avtec’s FireWall™ can enable low cost composites to gain entry into these markets previously dominated by aluminum and steel.
FireWall™ is an innovative surface technology that positions a fire resistant and smoke-suppressing layer at and within a composite’s surface. This “surface” functions like a secondary over-coating. However, the FireWall™ ply is processed during the manufacture of the composite just like a surfacing veil, providing a fully integrated layer within the finished part. Because it is integrated, it can’t be chipped or dislodged and works equally well with both reinforced thermoplastic and thermoset assemblies .
FireWall™ is available on both non-woven glass veil and pre-consolidated glass / PP substrates.
The glass FireWall ™ Mat is composed of a highly consistent and continuous filament glass fiber veil impregnated on one side with Avtec TSWB™ fire retardant additive. This provides the FireWall™ with a glass-rich side and a fire retardant rich side. In thermoset applications, the glass rich side would be oriented against the die or mold surface. FireWall™ Mat is available in rolls 300 linear feet long and in widths up to 60 inches trimmed.