What materials are commonly used for newer pothead terminations?

In the context of newer pothead terminations, porcelain and molded rubber are commonly used materials due to their excellent insulating properties and durability. Porcelain has been a traditional choice for insulators because it can withstand high voltages and is resistant to environmental factors such as moisture and UV radiation. Molded rubber complements porcelain by providing flexible, weather-resistant seals that can endure thermal expansion and contraction. This combination helps ensure reliability and longevity in electrical applications, particularly in demanding environments like substations.

The other materials listed do not offer the same balance of insulation, durability, and weather resistance that porcelain and molded rubber provide, making them less suitable for this specific application.