Concrete Driveway Sealing Q&A
Sealing a concrete driveway often makes the driveway look good and also helps in extending the life of the concrete driveway. Here are answers to the questions which arise while you decide to seal concrete driveway.
What are the Benefits of Concrete Driveway Sealing?
Driveways are subjected to wind, rainfall, snow and other weather conditions. They are also subjected to traffic. Extreme hot and cold climate can cause cracks in the concrete driveways. During rainfall, the water is absorbed by the concrete. The water expands when it freezes, thereby breaking and damaging the concrete. The concrete driveway sealers protect the driveways from snow, wind, rainfall and high temperature. Sealers also help in beautifying the driveways.
Is it Necessary to Seal a New Concrete Driveway?
Yes. Though concrete is a strong material, extreme weather conditions will crack and put holes in the concrete driveway; this leads the driveway vulnerable to further damage. The new concrete driveway needs to be sealed immediately after the concrete is poured and dried. This helps in providing immediate protection to the driveway thus reducing the chances of cracks and other damage.
How Often Should the Concrete Driveway be Sealed?
Concrete driveways may require sealing every 3 to 10 years depending on the weather conditions. Extreme hot or cold weather trigger the damages in driveways. Hence, places with extreme hot or cold weather require sealing more often.
What is the Material Used to Seal Concrete Driveways?
There are different types of sealers available for sealing concrete driveways. Some of them are acrylic resin sealers, polyurethane sealers, epoxies and penetrating resin sealers. Acrylic resin based sealers are the most commonly used ones for sealing concrete driveways and are cheaper when compared to others. Acrylic sealers are available in different forms like styrene acrylic, virgin acrylic etc. Virgin acrylic, also known as pure acrylic resin, is the best type of acrylic sealer which provides long lasting results. Polyurethane and epoxy sealers block the passage of moisture from the concrete and hence can lead to the formation of fog between the concrete and sealer. These are also slippery. Penetrating sealers are made of silicones, siloxanes and silanes. These sealers easily penetrate into the concrete thus blocking oil, water and other contaminants which can cause harm to the concrete driveway. Penetrating sealers do not produce gloss and hence are not slippery.
What is the Method of Applying Driveway Sealers?
There are 2 methods of applying sealers to driveways i.e. either by rollers or by sprayers. Solvent-based sealers are usually applied by sprayers while water based sealers are applied by rollers. One thing that has to be kept into consideration is coverage rate of the sealer which can be around 250 to 300 square feet per gallon. Apply 2 thin coats such that the sealer is evenly spread.
How Long will the Driveway Sealing Last?
The life of the sealing depends on the quality of the sealers used. Good quality sealers are costlier, but can last longer while cheap sealers last for a short time. On an average the sealers last for around 1 to 3 years. Hence proper maintenance of driveways require sealing every few years