Sandblast, Penetrating Stain, and Seal: A Better Way to Recolor Concrete

When concrete starts to look faded, uneven, or just plain worn out, there are a few ways to bring the color back. One of the best methods is a combination of sandblasting, penetrating stain, and sealer. This process gives the concrete a fresh look while keeping the finish durable and long-lasting.

At Concrete Sealers, we use this method when a customer wants to change the color of the concrete without covering up the surface with something that sits on top and can eventually wear out or peel.

Step 1: Sandblasting the surface

The first step is sandblasting. This removes the old sealer, buildup, and surface contamination so the concrete is ready for color. It also opens up the pores of the concrete, which helps the stain get deeper into the surface.

Sandblasting is especially useful when the old finish is failing or when the concrete needs a clean slate before recoloring.

Step 2: Applying a penetrating stain

After the surface is prepped, we apply a penetrating stain. This is different from an overlay-style stain because it soaks into the concrete instead of sitting on top of it.

That matters for a few reasons:

• It gives the concrete a more natural look.

• It is less likely to peel or flake like surface coatings can.

• It works well on concrete that already has texture or character.

• It lets the concrete breathe while still changing the color.

A penetrating stain is a good choice when you want the concrete itself to take on the new color instead of building a layer on top of it.

Why use penetrating stain instead of overlay-style stain?

Overlay-style stains or coatings can be useful in some situations, especially when the goal is to completely cover the surface or change the look more aggressively. But they also sit on top of the concrete, which means they can wear differently over time.

A penetrating stain gives you a different kind of result. Instead of creating a film on the surface, it colors the concrete from within. That usually means:

• Better long-term durability

• Less chance of peeling

• A more natural finish

• A look that works well on patios, walkways, and driveways

For a lot of concrete surfaces, especially outdoors, that makes penetrating stain the better option.

Step 3: Sealing the stain

Once the stain is set, we finish the job with a sealer. This protects the color, helps lock in the finish, and gives the concrete a cleaner look.

The sealer also helps protect against:

• Moisture

• UV damage

• Dirt and staining

• Everyday wear

Without sealer, the color won’t last as long and the surface won’t be protected the way it should be.

A better option for many concrete surfaces

If you want to restore concrete color without creating a surface coating that can peel later, sandblasting followed by a penetrating stain and sealer is a strong option. It gives the surface a fresh look while still keeping it durable and easy to maintain.

This is a great choice for patios, driveways, walkways, pool decks, and other decorative concrete surfaces.

If you are in Denver or the surrounding area and want to change the color of your concrete, this process may be the right fit.

Contact Concrete Sealers for a free estimate and we can take a look at your concrete and talk through the best option.