Durlon® iGuard™ FS (Fire Safe) isolation gaskets are engineered for critical applications where both electrical isolation and fire safety are essential. Designed to prevent galvanic corrosion while withstanding extreme heat, these gaskets meet API 6FB fire test standards. The FS series combines high-temperature sealing layers with a robust metal core and dielectric sleeve/washer sets for total flange isolation and flame resistance in hazardous service.