Class D rated grate has been designed for situations that require accessibility for heavy commercial vehicles as well as being able to cater for the needs of highway use. Each of the SABdrain 707 cast iron heel guard grates are equipped with an 8 point security fixing system, to keep it rattle free from vehicular movements and secured from unauthorized access.
Will Cast Iron Grates Rust? Like most metals, cast iron goes through a natural oxidation process, resulting in an outer protective coating known as rust. This process is called Patina. Patina is a naturally occurring process and shouldn’t be confused with corrosive rust. Read more here.