Enhanced aesthetic: The paver sealer enhances the curb appeal of your properties and provides perfect finish to the paved areas and at the same time stabilizes the joint sand by locking it in place. It protects the pavement against harmful UV rays and prevents fading.
The sealer will also solidify the joint sand so it will not wash away or erode as easily. The sealer helps to lock in the pavers and joint sand to create a weatherproof surface that will last for many years.
After tamping down joint sand and sweeping the sanded areas for new installations, be sure the sand is at least 1/8 inch below the surface of the pavers. Make sure all sand residue and fine powder is removed with broom & blower before application of any film forming sealers.
Your pavers won't disintegrate if you don't seal them, but they'll likely fade much sooner than if you applied sealant. You'll also need to clean them more often, and the stains won't be as easy to remove.
How often do I need to reseal my pavers? If your sealant has been applied correctly by a professional, it should last between two to three years. The care given to the area and other elements like traffic or weather will also play a part in its longevity.
Traditionally, concrete paver manufacturers have recommended waiting at least 90 days after polymeric sand installation to apply a protective sealant to a paver surface. Nowadays, a 30 day delay is sufficient to allow the evaporation of any remaining natural efflorescence contained in the pavers.
Polymeric Sand has many benefits, however, the biggest drawback is that it can be easy to mess up, especially if you don't follow the manufacturer's instructions.
Polymeric sand is appreciated by paver installers because joints you get from it are durable and even . This eliminates any risk of weed growth and ant infestation that could affect the overall aesthetics and durability of paver projects.
A minimum of 24 hours drying time is required prior to allowing foot traffic and 48 hours for vehicular traffic on the paver surface. Dampening: Apply a gentle fine mist to the filled joints, flooding the faces of the pavers and allowing the water to run into the joints. Do not flood the sand onto paver surfaces.
The solids content of these sealers is very high which fills the paver pores and creates a solid layer of sealer on the surface which will make things slippery when wet.
If your polymeric sand didn't harden up, it's pretty much guaranteed there's a moisture issue. If the joints remain wet after the installation, they will remain soft until they dry. So getting one initial complete drying "set" is very important to the long-term performance and lifespan of the product.
The first thing you need to do is remove ALL of the existing sand down to the bottom of the paver. Polymeric sand works best when used at full depth. A pressure washer works well or you can get down on your hands and knees and use some sort of tool that will dislodge the sand.
Epic Fail #1: Too much or too little watering.
A polymeric sand installation requires the use of a controlled and methodical watering technique. Using too much water can cause the sand to wash out of the joints. On the contrary, using too little can result in the product not setting up properly.
Regular sand for paving is prone to erosion, damage from weeds and can make your pavers hard to wash without risking the loss of any jointing sand between the stones. Using polymeric sand, however, prevents weeds from taking root and holds pavers firmly in place thanks to the durability of its seal.
You can protect the joint sand from washing out by sealing the paver surface. Sealing restores the beauty of your pavers. The paver sealer also serves as glue between the joint sand particles hence holding them together, and preventing the sand from being washed away when it rains or during pressure washing.
Why Your Paving Loses Sand. Over time, patio sand can wash away due to its continuous exposure to different types of weather, including rain, wind, snow, etc.
Water-based paver sealers can be dry to the touch in as little as 3-6 hours, but as with the other paving sealers covered in this guide, we recommend you allow for a more extended period of drying time to let the sealer fully harden. Wait at least 12 hours before walking on the surface and 24 before driving.
You pressure clean the pavers, re-sand the paver joints and then apply two coats of your favorite paver sealer and the job was complete.
Fall or spring is a great time of the year to seal pavers. Cooler weather allows the sealer to penetrate into the pavers unhindered. Pavers will have an adequate amount of protection for when it's time to seal again. Make sure to keep leaves and other debris off the pavers while they are drying to avoid blemishes.
However, “too much of a good thing” can come into play, and you should be wary of over-applying paver sealer by reapplying too often, which could create a haze.