Smooth Concrete

Man sealing an exposed aggregate concrete driveway

How to Seal An Exposed Aggregate Concrete Driveway

Man sealing an exposed aggregate concrete driveway

Sealing plays a significant role in the lifespan and visual appeal of an exposed aggregate concrete driveway. This often-overlooked process involves the application of a protective layer to the concrete substrate. It not only enhances the visual appeal of your driveway but also shields it from various elements such as weather conditions, oil stains, and everyday wear and tear.

We offer a variety of sealers and application methods, each with its unique advantages and potential challenges. To ensure the best results, we believe it’s paramount to comprehend the entire process, from the initial preparation of the surface to the final curing of the sealer, and the subsequent maintenance necessary.

So, where do you start with this seemingly intricate task, and how can you dodge the most common roadblocks? Stay tuned to our blog as we guide you through the process, helping you avoid common pitfalls and ensuring the longevity and aesthetics of your driveway.

Understanding Exposed Aggregate Concrete

Exposed aggregate concrete is a decorative type of concrete. Its top layer of aggregate – which includes materials like gravel, pebbles, and crushed stone – is intentionally made visible. This style is particularly favoured for its application in exposed aggregate driveways, not just for its aesthetic charm, but also for its slip-resistant properties.

The unique and textured look of exposed aggregate concrete is a result of the aggregate being visible on the surface, adding unmatched aesthetic value and providing an excellent grip for your feet. Don’t be fooled by its intricate visual appeal, the durability of this concrete style is surprisingly high, making it a favourite choice amongst many Melbourne homeowners.

A key element in ensuring the longevity of your exposed aggregate concrete is sealing. Applying a concrete sealer to protect the surface from stains and weathering will enhancing its appearance and extending its lifespan. The application of sealer to your driveway is a critical step that we execute with precision. We often recommend using penetrating sealers, as they offer superior protection without changing the surface’s appearance.

The process of resealing exposed aggregate is also crucial to maintain its integrity over time, ensuring your driveway continues to look its best and perform efficiently.

Importance of Sealing Your Driveway

As a protective shield, driveway sealer significantly reduces the risk of crumbling, cracks, and water damage, while enhancing the aesthetic appeal of your exposed aggregate concrete driveway. But the value of sealing your driveway stretches beyond just the visual appeal.

In our experience, concrete driveways, especially those with exposed aggregate, are highly susceptible to damage from weather conditions, vehicle traffic, and accidental spills. As a solution, our team applies a high-quality sealer that seeps into the concrete’s pores, creating an effective barrier against these damaging factors. This not only extends the life of your driveway but also minimises the need for frequent, costly repairs.

Penetrating sealer does more than just protect your driveway from physical damage. It also wards off unsightly stains from oil, grease, and other contaminants. As a result, the sealer maintains the vibrant colour and texture of the aggregate, enhancing your home’s curb appeal in the process.

Pre-Sealing Preparation Steps

Applying a sealer to your driveway is an essential step to ensure the long-lasting protection and beauty of your exposed aggregate concrete. In order to do this correctly, you need to follow specific pre-sealing preparation procedures to ensure the durability and effectiveness of the sealer on your driveway. These steps begin immediately after the installation of the exposed aggregate.

The first step to take is to thoroughly clean the surface. This involves using a high-pressure wash to eliminate any dirt and grime that may have settled on the decorative concrete. This crucial step ensures the removal of loose stones, providing a clean top layer on which to apply the sealer.

  • We pressure wash the driveway to eliminate any traces of dirt and grime
  • Loose stones on the surface are removed with a broom
  • We make sure the surface is fully dry before sealer application

You need to be sure to completely dry surface before the sealer application. Any residual moisture on the surface could prevent the sealer from properly adhering to the concrete. Once the driveway is sufficiently dry, you can proceed with the sealer application.

Step-by-Step Sealing Process

Once you’ve ensured a clean and dry surface, you can begin applying the sealer.

The process begins with the application of a topical sealer, typically using a ½-inch roller. The importance of the sealer can’t be overstated, as it offers varying levels of protection, aesthetics, and longevity. We prefer the topical sealer for its superior ability to enhance the colour and texture of the exposed aggregate. Not only does it provide a high-gloss finish, but it also offers robust protection against wear and tear.

Throughout the sealing process, you should apply the sealer evenly using a ½-inch roller and a pump-up sprayer. Divide your work into small sections to ensure every part of your driveway is well-coated. Once the sealer is applied, it’s crucial to let it dry according to the manufacturer’s instructions.

We recommend resealing every 12 to 36 months, depending on weather and traffic conditions. While it’s possible to undertake this task yourself, our skilled team at Smooth Concrete is always on hand to provide their expertise in using exposed aggregate.

Post-Sealing Care and Maintenance

To ensure the longevity and aesthetic appeal of your driveway, we strongly recommend regular upkeep and diligent attention.

We advise a thorough power wash every 40 days to keep your driveway spotless. Should you notice any rust stains, apply a rust remover promptly to prevent permanent damage.

To maintain the high-gloss finish of your driveway, we recommend reapplying a superior quality sealer like the Clear Concrete Sealer every 2 to 3 years. For optimal results, always apply thin coats, as it improves coverage and durability.

After the sealing process, we suggest limiting foot traffic for at least 1 to 4 hours, and vehicular traffic for a minimum of 24 to 48 hours. This allows the sealer to cure properly, guaranteeing a better finish.

Periodic care and maintenance are the cornerstones to preserving the beauty and functionality of your exposed aggregate concrete driveway. By following these steps, you can enjoy a durable and visually appealing driveway for many years.

Frequently Asked Questions

Should You Seal Exposed Aggregate Concrete Driveway?

Yes, you should seal an exposed aggregate concrete driveway. It can significantly enhance the lifespan of your driveway, taking into account factors such as the type of sealant used, application frequency, Melbourne’s climate, and associated costs. Whether you opt for DIY or hire our professional services, regular maintenance ensures your driveway continues to stay in top-notch condition.

What Is the Best Sealer for Exposed Aggregate Driveway?

The best sealer for exposed aggregate driveways strikes a balance between longevity, affordability, and maintenance requirements. In our experience, penetrating sealers are top performers, offering robust durability with minimal upkeep. Alternatively, if you prefer a glossier finish, topical acrylic sealers are an excellent choice. Both these options can be applied via DIY or professional methods, and we at Smooth Concrete are always ready to lend our expertise.

What Happens if You Don’t Seal Exposed Aggregate?

If you don’t seal exposed aggregate, the unsealed concrete is at risk of weather damage, surface erosion, staining, and reduced durability. Not sealing can lead to increased maintenance difficulties and may significantly affect the lifespan of your driveway. Therefore, we at Smooth Concrete believe that sealing is absolutely crucial for preserving your aggregate’s integrity and enhancing its visual appeal.


At Smooth Concrete, we can’t stress enough the significance of sealing your exposed aggregate concrete driveway. This task is not just crucial for boosting its visual charm, but it’s also a key factor in extending its durability.

If you need assistance with your concrete driveway, be sure to call us on 0403 292 005 or email