Corten Steel: Is It Safe For Gardens?
COR-TEN refers to a hot-rolled steel alloy that is used in the railroad and shipping industries. Redcor is a type of corten steel but is cold-rolled instead of hot-rolled. ... To speed rust your corten steel bed, combine 2 ounces of vinegar, ½ teaspoon of salt, and 16 ounces of hydrogen peroxide in a spray bottle. Shake the bottle vigorously ...