Spiral wound gaskets are made of a preformed metallic strip and a soft filler material (PTFE or
Flexible graphite), wound together under pressure, and optionally with an inner and/or outer guide ring. The metal strip holds the filler, resulting in excellent mechanical resistance, resilience and recovery.
For applications with high temperature variations(thermal cycling),and/or pressure variations,
and/or flange rotation problems etc., gaskets with adequate residual stress (stress retention), flexibility and recovery are needed. Montero spiral wound gaskets have been designed to meet these demanding requirements.
