While the advantages outweigh the negatives, there are some disadvantages that you should keep in mind before sealing your concrete driveway. Sealant can make the surface slippery. Sealants tend to dry down with a glossy or semi-glossy sheen that can be quite slick, especially when wet.
The Drawbacks of Seal Coating
There are some drawbacks to sealcoating, however. One is that it can be messy and difficult to apply evenly. It's also important to note that sealants will not repair significant damage to your driveway; they will only protect it from further damage.
Sealing your concrete not only ensures your concrete surface is protected, but that it is long lasting. It should also be noted that compared to the cost of replacing a concrete surface, sealing is relatively inexpensive and easy to do–definitely worth a long lasting concrete floor, patio, slab, or driveway.
One of the biggest disadvantages of concrete driveway sealing is the cost. The materials and labor required to seal a concrete driveway properly can be expensive. In addition, concrete driveways that are improperly sealed can trap moisture underneath the surface, which can lead to problems such as mold and mildew.
Not sealing it will only make it more susceptible to damage from the elements and other things. Sealcoating can effectively protect your driveway from rain, hail, snow or oil. It will give you a water-resistant surface, protecting you from the elements. Your driveway is also protected from the sun's damaging UV rays.
If you want to clean your concrete, there are a few things to keep in mind. You should use a pressure washer or other high-pressure water source to remove stains such as oil and grease. When using a pressure washer, be careful not to damage the sealer on your driveway by putting too much pressure on it.
Acrylic Concrete Sealers: Acrylic sealers last 1-3 years before they need to be re-coated. Epoxy Coatings: Epoxy coatings last 5-10 years before they need to be re-coated. Urethane Coatings: Urethane coatings last 5-10 years before they need to be re-coated.
But if you want to drive on it, then you have to wait a minimum of 12 hours for it to dry and cure. If it's overcast or if rain is in the forecast, then the drying and curing process will definitely take much longer. For optimum results, we recommend that you use your driveway 48 to 72 hours after sealcoat was applied.
For it to be successful though, you need to apply the first coat of sealant within 12-18 months after asphalt installation, and then again every 2-3 years. Any more frequent than this and your driveway may begin chipping or flaking, but any longer than this and your driveway could deteriorate.
APPLYING TOO MUCH SEALER OR THE WRONG KIND OF SEALER
While slathering seal coat over asphalt in a thick layer can be tempting, a “more is better” approach is detrimental to the pavement beneath. Too much sealer can lead to premature cracking, which will shorten the lifespan of your driveway.
It also prevents water from turning hairline cracks into bigger ones. The aggregate in the mix enhances traction, acts as a wear layer, and fills small cracks. Also, sealcoating gives the driveway a uniform black color.”
When should a driveway be sealed? You should have sealer applied as soon as your concrete slab or decorative surface has set and cured. Always read the product information for specific application instructions.
Solvent base sealers tend to over darken concrete stain, looking as it does when saturated wet with water. Water base sealers such as Clear Shield, makes the concrete look as it does when damp with water, not saturated wet but not dry either.
Can Sealing Prevent Cracks on Concrete Surfaces? Concrete sealing can stop most types of concrete fractures. This fact is especially true if the crack is a result of poor-quality work in the concrete mix or site preparation. However, sealing can prevent future damage that may start from the top layer of the concrete.
Rain can wash away all of the hard work that you put into your driveway. The sealer will be washed away by the rain if you don't wait long enough for it to dry.
Concrete sealers are best applied in two thin coats. The first coat of sealer acts like a primer. Most of it will disappear into the concrete surface, and the concrete will probably look fairly unattractive after the first coat. The second thin coat will provide an even finish, color enhancement and gloss.
If you experience any dew, accidental sprinkling of water or rain as the sealant dries, the sealant can become stained, cloudy, blotchy, or discolored and it will no longer be aesthetically pleasing. Simply don't seal your paver if there is even a remote chance of rain, fog, or a drizzle.
After discussing the factors you need to look for and the regional location of the project, in broad terms, Spring is in fact the best time of year to seal concrete. With its moderate temperatures and humidity levels, it tends to provide ideal conditions for the application and curing of sealers.
In order to properly seal your concrete, then, you must clean the surface of the substrate before applying a concrete sealer of any variety. The easiest and most effective way to clean the concrete will vary depending on the condition of your concrete and whether it has been treated with chemical stains.
A: Yes! Old concrete can be sealed for the first time or resealed if it has been previously sealed with a concrete sealer. Before sealing old concrete you want to make sure you determine if the concrete has been previously sealed.
Oil leaks, blood, and sticky residues can absorb and result in stubborn stains. However, using a driveway sealant after pressure washing can help prevent these stains from becoming permanent features in your driveway.
How Long After Power Washing Before Sealing? For best results and to ensure the sealant lasts as long as possible, you should wait 24-48 hours to seal your driveway after cleaning it. This allows sufficient time for the surface to fully dry.