Polymeric Jointing Sand | FAQ
What is polymeric sand?
Polymeric sand is obtained by mixing fine sand and polymer additives. When mixed with water, the product becomes a powerful and flexible binding agent that's even stronger than traditional hardscape mortar.
When did polymeric sand first become available?
Techniseal was the first manufacturer to offer polymeric sand technology at the turn of the 2000s. More than 20 years after the launch of its first jointing sand, Techniseal still remains the best-known and most trusted manufacturer in the industry, thanks in part to the launch of its revolutionary Nextgel formula in 2015.
What are the main advantages of polymeric sand?
The use of polymeric sand for concrete paver installations has several advantages, including:
- Optimal joint stabilization
- Avoids weed growth and ant infestation
- Added resistance against natural erosion
- Quick & simple application
- A more aesthetic appearance of paver joints
How to choose the right polymeric sand for my paver installations?
Several types (and grades) of polymeric sand are available on the market. Techniseal is the only manufacturer to offer a "One-Sand-Fits-All" product suitable for all types of installations in any types of environments.
Our HP Nextgel Polymeric Jointing Sand offers unsurpassed joint stabilization, even in high humidity areas, sloping terrain, and high vehicular traffic regions.
For smaller installations, Techniseal offers paver experts a more cost-efficient but less performant formula. Our RG + Polysand is more than suitable for residential installations that are not subject to heavy vehicular traffic and that require joints that are less than 1 inch (2.54 cm) wide.
In the Spring of 2018, Techniseal also introduced a new NO HAZE sand formula that was designed for interlocking paver installations in residential areas. SmartSand serves as a new jointing alternative that's below HP Nextgel, and above RG+ when it comes to performances.
How many colors of polymeric sand does Techniseal currently offers?
Overall, Techniseal's polymeric sands are offered in more than twenty beautiful colors. This makes us the sand manufacturer with the greatest number of colors to offer to hardscape professionals.
Obviously, the availability of the different colors depends on the type of sand chosen and the geographical region in which you are located.
How long does it take after the last rain to install polymer sand?
In general, it is recommended to wait at least 24 hours after any significant rainfall to proceed with the installation of polymeric sand.
Understandably, it is not recommended to lay jointing sand in the rain, or when precipitation are expected in the hours following your work.
How long after installing polymeric sand can pavers be sealed?
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. Just remember that thorough cleaning and proper surface preparation should always precede the application of any protective sealant.
How do I know if my polymeric sand has been sufficiently wetted ?
Proper wetting of the polymeric sand is essential for optimal stabilization of paver joints.
To ensure that this important step is done right, we recommend that you generously water the sand until a thin whitish layer starts emanating from the paver joints.
You can then stop watering this section of the surface and move on to the next one.