Sandblasted signs have been around, well, probably since sandblasting technology first appeared. They fall under the larger category of dimensional signage, and can be made from a variety of substrates. Sandblasted wood is probably what most people think of when it comes to sandblasted signs, and the most popular types are cedar and redwood. The look and feel of the real wood grain adds an element of “old-world” craftsmanship to the sign, and are in high demand for businesses and individuals who want a sign with a classy rustic appeal. Also popular these days is sandblasted HDU (high density urethane). The cost is typically cheaper than sandblasted wood, and often achieves a similar effect. The wood grain was the quality that was lost with HDU in the past, but sandblasters have recently refined some clever tricks to mimic wood grain in HDU signs.