What is the shelf life of a V-ring?

• A. 5 years
• B. 3 years
• C. 20 years
• D. 7 years

Answer: (B)

V-rings are elastomer seals, so their ability to seal well degrades as the rubber ages. The shelf life reflects how long the material can sit in storage under recommended conditions (cool, dry, away from direct sunlight and solvents, in its original packaging) before aging processes like thermo-oxidation and ozone attack start to affect elasticity and integrity. With proper storage, three years is the typical period the manufacturer guarantees performance for a V-ring. After this time, the material can harden, crack, or lose resiliency, increasing the risk of seal failure. If you ever notice cracking, hardening, cracking patterns, or tackiness, replace the V-ring. Longer durations such as five, seven, or twenty years exceed typical elastomer aging limits and aren’t considered acceptable for guaranteed performance.