COR-TEN® STEEL SURFACE FINISH

Form and Fiber manufacturers pre-weathered Cor-Ten® steel products utilizing ASTM A606 Type 4 Cor-Ten® Steel and ASTM A588 Cor-Ten® Steel. Product is solde as pre-weathered where mill scale removed, surface is flashed and rust patina is developed. Finish achieves an advanced level of oxidation.

A light metal sealant is applied for pre-weathered finishes, allowing products to be handled while continuing oxidation.  Rust leaching at base will continue until fully oxidized, but greatly decreased to due removal of mill scale and initial pre-weathering. For this reason, designers should still exercise caution in placement of Cor-Ten products in exterior environments. This sealant is a temporary protectant and is meant to allowing units to be handled.