Post Point

Our copper finish post caps come with a thin, clear marine lacquer designed to protect them before and during installation. Once exposed to the elements, the sun's ultraviolet rays, moisture and pollution begin to break down this coating, exposing the metal underneath. In its natural state, copper breaks down in the elements and patinas. In general, copper progresses from a natural salmon color to a series of russet browns and grays, and finally to a blue-green or gray-green patina.

The lumber industry defines standard wood post sizes as 4x4 or 6x6. The outside dimensions of the standard 4x4 measures 3-1/2" x 3-1/2", and the outside dimensions of the standard 6x6 measures 5-1/2" x 5-1/2".

"Patina" refers to the natural weathering of copper due to airborne sulfur compounds, which gradually change copper’s surface color. The resulting color, called a patina, depends on location and climate. Salt, moisture, sunlight, ultraviolet rays and pollution can affect the final color. To maintain the shiny look, apply a car wax immediately after purchasing the post cap, and reapply every 3 to 6 months. To encourage a natural patina, remove the lacquer with mineral spirits and grade 0000 steel wool.