Signboard, is an exterior-grade plywood with a high-quality paper face saturated with phenolic resin solids. The plywood below the paper face is smooth, clear and free of patches, providing a smooth surface with minimal grain showing through. Signboard plywood is water-proof and weather-resistant. It can be sawed, nailed, routed, shaped and drilled. This product is designed for exterior use. It resists inclement weather areas well. It is often used for exterior signs. We apply an exterior grade primer and paint to this product.