What is sandblasting used for?

Sandblasting can be used as a cleaning method to remove paint, rust, and residue from oxidation. We use this fabrication method to create sandblasted signs using a stencil mask. Read further to learn more about this creative technique.

Sandblasting: Custom Sandblasted Signs in Cedar, HDU & Stone

What Is Sandblasting?

Sandblasting, also called abrasive blasting, shoots a fast stream of abrasive material at a surface under high pressure. Compressed air usually drives the material, which is often called “media.” The blast can smooth a rough surface, roughen a smooth one, shape a surface, or strip off contaminants like paint, rust, and oxidation.

The technique has a long history. Benjamin Chew Tilghman patented the first abrasive blasting process on October 18, 1870. You can read more about the method on Wikipedia.

In our shop, we use it as a carving method. We pair it with a stencil mask to create sandblasted signs. The mask protects the parts we want to keep, and the blast removes everything else.

Sandblasted Signs in Cedar, HDU, and Granite

We make dimensional signs for businesses and communities. First, we help you choose the right material. Cedar and high-density urethane (HDU) are the most popular choices for wood-look signs. We can also blast lettering into stone, such as granite, marble, or concrete.

Next, we design your custom logo or layout and use it to make the sandblast mask. The mask is a thick, flexible rubber sheet with strong adhesive on the back. We cut it with a computer-controlled cutter and apply it to the face of your sign.

The rubber shields the sign while the blast carves away the background. The result is a textured, recessed background with raised, flat letters. We often finish the letters and trim with 23 karat gold leaf for a bright, lasting shine.

Sandblasting Letters into Stone or Concrete

For stone and concrete, we reverse the process. The mask covers the background and leaves the letters exposed. As a result, the blast carves the letters into the surface instead of the background. Most of the time, we finish these letters with black fill or 23 karat gold leaf.

Ready for Your Own Sandblasted Sign?

We are based in Edgewater, Maryland, and we work throughout the Washington, DC area. Tell us what you have in mind, and we will recommend the best material and finish. Visit Designs & Signs to get started.