Hydraulic seal failure modes include abrasion, compression set, extrusion, and chemical degradation. Abrasion occurs from contaminant ingress or rough surfaces. Compression set leads to permanent deformation and leakage. Extrusion happens when seals squeeze into clearance gaps under pressure. Chemical attack swells or brittles seal material. Early detection through visual inspection o... https://globalsealstech.com/hydraulic-seals/