Cast Iron Sundials
Cast iron sundials were developed in the 19th century as a more affordable alternative to bronze and solid brass. The trade off with cast iron is that it is prone to rust. That is not necessarily a bad thing; the rust finish in garden art has become quite popular.
Cast resin sundials offer beauty at the lowest price point. Similar to casting concrete, these sundials are made by pouring a solution of finely crushed stone & resin into a mold and curing until solid. They then have a hand painted finish applied.