Our [4mm Coroplast signs](/printing/yard-signs) are lightweight corrugated plastic signs used for yard signs, parking signs, real estate signs, and election signs. The inks are UV-cured for outdoor durability. When using H-stakes, orient the flutes vertically and push into soft ground like dirt, soil, or grass. Artwork needs 0.5 inches of bleed on all sides — no crop marks. The flute structure produces a subtle linear surface effect, which is a normal characteristic of the material.
