A laminar Seal Rings that seals linearly, also called a laminar seal or linear seal, is a multiple-layered component that is made from several thin metal sheets that are stacked together in a pattern that alternates or interlocks. This tiered design promotes a highly effective barrier to prevent contamination, oil spillage, and high temperatures. Laminar ring seals are typically positioned in grooves and employed in situations where traditional rubber seals have a hard time staying strong, temperature extremes, high rotation, or adverse environmental conditions.