Sour-service FFKM seals Singapore resist H2S, CO2, methanol, and elemental sulfur in upstream oil & gas applications. Compliant with NACE MR0175/ISO 15156, they prevent swelling, embrittlement, and blistering in downhole and surface equipment. Singapore offshore operators use FFKM O-rings in wellhead connectors, valves, and packers to ensure barrier integrity under extreme sour condit... https://globalsealstech.com/ffkm-seals/