Even the highest‑quality Kalrez O‑ring will fail prematurely if not installed or stored correctly. Because perfluoroelastomer materials are more expensive and less elastic than standard rubbers, proper handling practices are essential to maximize seal life and prevent leaks.

Installation Tips:

• Inspect the gland: Before installing a Kalrez O‑ring, ensure the gland surfaces are clean, smooth, and free of burrs or scratches. Contaminants or sharp edges can cause localized stress concentrations.

• Lubrication: Although Kalrez has excellent chemical resistance, using a compatible lubricant (such as Krytox® or a silicone‑free vacuum grease) reduces friction during assembly and prevents twisting or pinching.

• Avoid overstretching: Kalrez O‑rings have lower elongation than nitrile or FKM. Stretching them excessively can cause permanent deformation or microscopic tears. Use proper installation tools rather than sharp metal picks.

• Check for twist: After installation, verify that the O‑ring is not twisted in the gland. A twisted seal will create uneven compression and lead to premature failure.

Storage Guidelines:
To preserve the properties of FFKM seals, store them in a cool, dry environment away from direct sunlight, ozone‑generating equipment, and sources of UV radiation. Keep them in their original sealed packaging until use to prevent contamination. Unlike some elastomers, Kalrez does not typically require humidity control, but extreme temperature fluctuations should be avoided.

By following these simple installation and storage practices, you can maximize the service life of your perfluoroelastomer O‑rings and ensure the reliability of your critical equipment. When in doubt, consult your seal supplier for grade‑specific recommendations.