What are the thermal break materials used in cast iron outdoor trash can handles?

When specifying cast iron outdoor trash can handles, thermal break materials are critical for preventing heat transfer and ensuring user safety. The primary materials used include phenolic resins, which offer excellent electrical insulation and heat resistance up to 300°F. Nylon-based thermal breaks provide good mechanical strength and thermal isolation while resisting environmental degradation. Some manufacturers utilize ceramic fiber inserts that withstand extreme temperatures exceeding 1000°F. Advanced composites featuring fiberglass reinforcement with epoxy matrices create durable thermal barriers that maintain structural integrity. These materials are strategically placed between the cast iron handle and its mounting points to interrupt thermal conduction paths. The thermal break must demonstrate compatibility with cast iron's expansion coefficients while providing sufficient compressive strength to handle mechanical loads. Proper material selection ensures the handle remains safe to touch even when the container interior reaches high temperatures, making it essential for public spaces and high-temperature climates.