O‑Ring Cleanliness 2/400 µm standard ensures high-quality sealing performance by maintaining strict particle cleanliness and surface quality levels. By adhering to the 2/400 µm standard, Trelleborg ensures that O-Rings are manufactured and handled to minimize particulate contamination, crucial in maintaining seal reliability, preventing system fouling, and meeting rigorous cleanliness needs in demanding industrial settings. This is a Custom Article Number with a Customer Specific Design.