Challenge

A long-time Marco Rubber & Plastics customer in the valve and control industry faced a demanding sealing challenge: maintain a reliable seal under 600°F and 1,000 psi hot air in a dynamic environment. Standard spring-energized PTFE seals typically fail beyond 500°F, putting system performance and safety at risk.

Engineered for Extremes

Leveraging deep expertise in high-temperature sealing materials, Marco’s engineering team developed a custom high-performance solution. The seal featured a specialized high-temp PTFE compound and advanced spring materials designed to handle continuous exposure to 600°F and aggressive dynamic motion.

Proven Superiority

In side-by-side testing against conventional spring-energized PTFE seals, Marco’s high-temperature seal outperformed across the board—with lower leakage, reduced permanent deformation, and higher long-term durability. A clear win for mission-critical performance in extreme conditions.