FS-seals feature large cross-sections with internal springs for double-acting static and low-dynamic sealing. Used in packers and bridge plugs, they offer superior extrusion resistance and reliable performance in irregular bores. Materials like peroxide-cured HNBR provide excellent compression set resistance after prolonged exposure to 200°C+. https://globalsealstech.com/product-category/oil-gas-seals/downhole-completion-tools-seals/