As the global energy sector shifts toward sustainable sources—such as wind, solar, hydrogen, and biofuels—the need for reliable, high-performance sealing solutions is greater than ever. O-Rings in renewable energy systems must withstand harsh environments, chemical exposure, UV, ozone, and temperature extremes, while maintaining durability, safety, and efficiency.

 

Material

Temperature Range (°C)

Key Properties

Applications

EPDM

-50 to +150

Excellent UV, ozone, and steam resistance

Wind turbine nacelles, solar panel enclosures

FKM

-20 to +200

Good fuel, oil, and chemical resistance

Biofuel systems, solar thermal collectors

HNBR

-40 to +165

Ozone and oil resistance, excellent mechanical properties

Hydrogen systems, wind gearboxes, offshore cables

FFKM

-15 to +327

Superior chemical, heat, and pressure resistance

Hydrogen electrolyzers, fuel cells, CSP systems

PTFE

-200 to +260

Chemically inert, weather-resistant, and non-aging

Photovoltaic (PV) inverters, chemical storage tanks

Silicone (UV-stable)

-60 to +230

Weather/ozone resistant, flexible at low temps

Outdoor solar systems, battery energy storage (BESS)