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Teadit spiral wound gaskets are 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. They have been designed to meet these demanding requirements. Spiral-wound gaskets are made of a preformed Metallic strip and a soft filler material, 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.