Seal extrusion occurs when soft seal material is forced into clearance gaps under pressure. This damages seals and causes leakage. Anti-extrusion rings prevent this in high-pressure applications. Reducing clearance gaps improves resistance. Harder materials like polyurethane resist extrusion better. Excessive temperature exacerbates the problem. Proper design and material selection el... https://globalsealstech.com/hydraulic-seals/