
Standard vs. UL Listed O-Rings: When to Use Each
When engineers specify an O-ring for a new machine, the decision is rarely as simple as choosing the correct size. The application may require a particular elastomer, hardness, temperature range, pressure capability, chemical resistance, compression set performance, and regulatory status. One question becomes especially important when equipment is intended for electrical, industrial, fluid-handling, appliance, enclosure, or safety-related applications: Should the



