Polyurethane vs NBR vs Viton Seals: Which Material Is Right for Your Excavator?
When you order a hydraulic seal kit for your excavator, you will encounter three primary seal materials: Polyurethane (PU), Nitrile Rubber (NBR), and Viton/FKM (Fluorocarbon). Each material has distinct properties that make it suitable for different operating conditions. Choosing the wrong seal material is one of the most common causes of premature seal failure. This […]








