How To Store O-Rings

How To Store O-Rings

Improper storage of O-Rings can lead to deterioration, hardening, or cracking—directly affecting sealing performance. This guide covers proper environmental conditions, packaging tips, and ISO-based shelf life estimates.

✅ Recommended Storage Conditions

ParameterIdeal Range
Temperature15°C to 25°C (59°F to 77°F)
HumidityBelow 65%
LightStore in dark or low UV areas
Ozone/OxidantsAvoid exposure to motors or fumes

✅ Packaging Guidelines

  • Keep O-rings in original sealed bags

  • Do not mix with oils, solvents, or PVC materials

  • Label by material and date for easy tracking

✅ Physical Placement

  • Store flat, not hanging or folded

  • Keep different materials/sizes separated

  • Avoid compression over long periods

⏳ Shelf Life by Material 

MaterialShelf Life (Unopened)
NBR, SBR, PU, NR, CR, IIR, CSM10 years
HNBR, FKM, EPDM, SI, ACM20 years