Seals face constant exposure to heat, pressure, and aggressive fluids in chemical processing. Standard elastomers can swell, crack, or lose strength, leading to leaks and unplanned downtime.
Markez® FFKM compounds from Marco Rubber & Plastics are engineered to perform under these conditions. They deliver broad chemical compatibility and thermal stability up to 600°F, offering the same reliability as premium perfluoroelastomers like Kalrez® and Chemraz® but at a lower total cost.
A mechanical seal manufacturer contacted Marco Rubber & Plastics after repeated failures with their conventional materials. They needed FFKM-level performance that could handle high temperatures and chemical exposure without the high cost or long lead times of other brands.
The Challenge
High-speed rotary seals in chemical processing equipment were breaking down under heat, pressure, and solvent exposure. The internal o-rings lost elasticity and began leaking during extended operation. This forced shutdowns and unplanned cleanup.
Standard silicone and FKM compounds couldn’t withstand continuous exposure to temperatures nearing 600°F or prolonged contact with aggressive chemicals. Failures were occurring regularly, costing money, affecting reliability, and disrupting schedules.
Marco’s Solution
The engineering team at Marco recommended Markez Z1028, a perfluoroelastomer (FFKM) compound formulated for high-temperature chemical service. It offers broad chemical compatibility and maintains sealing strength in temperatures up to 600°F.
To validate performance, Marco provided prototype seals for testing in the mechanical seal assemblies and supplied a detailed material data sheet.
Here’s what the team did:
- Reviewed the chemical environment and temperature profile
- Confirmed proper fit and compression
- Verified sealing performance under dynamic pressure and rotation
- Evaluated durability through continuous high-temperature operation
Markez Z1028 maintained full sealing integrity under heat, pressure, and chemical exposure. It delivered FFKM-level reliability at a lower cost, reducing material spend and long-term maintenance needs.
Proven Results
Testing confirmed that Markez Z1028 maintained full seal integrity through continuous high-temperature and chemical exposure. The seals held their shape and sealing force under dynamic rotary conditions. There was no sign of surface damage or compression loss.
The results were consistent in production:
- No leakage or material degradation
- Reliable sealing performance in temperatures up to 600°F
- Reduced material and maintenance costs
With its chemical resistance, thermal stability, and cost control, Markez Z1028 was the preferred choice.
Reliable FFKM Sealing for Chemical Processing
High-performance sealing in chemical processing requires materials that can resist aggressive fluids and extreme heat without losing strength. Markez FFKM compounds are engineered for exactly that.
Through controlled testing and application support, Marco Rubber & Plastics helps manufacturers achieve the reliable sealing performance they need while reducing total material cost. Markez compounds have become trusted Kalrez alternatives and Chemraz replacements for demanding sealing environments where chemical and thermal resistance are essential.
Contact Marco Rubber & Plastics for high-performance FFKM sealing solutions.