Environmental Spiral wound gaskets made by alternating a formed metal strip and a soft filler material in which form a gasket that produces a very effective seal when compressed between two flanges. The V-shaped windings of the metal strip acts as a spring, giving the gaskets greater resiliency under varying conditions. The metal strip and filler materials of spiral wound gaskets can be changed, accommodating for different chemical compatibility requirements and fire safety is assured with selecting flexible graphite as the filler material.