5 Frequent Mistakes When Installing Polysand


In 2006, Techniseal initiated a technical training program exclusively developed for hardscape professionals. In over a decade, we helped hundreds of contractors in the pavers installation and maintenance business to increase their daily productivity and revenues.

The hardscape business has changed significantly in the past decade. First Introduced by Techniseal in 1999, polymeric sand is now the preferred jointing solution of thousands of contractors throughout North America.

Polysand such as HP Nextgel and RG+ are amongst the most reliable products on the market today. Nevertheless, mistakes made during sand installation can really jeopardize the quality and outcome of your work.

In this article, we will underline 5 of the most common ‘’polysand’’ installation mistakes.

1. Inadequate wetting of the surface 

In 2017, the wetting process of the polymeric sand is still too often neglected by contractors on the field. Nonetheless, it is at the very center of any successful paver installation.

Oftentimes, teams delegate this crucial step to inexperienced workers. Due to their limited knowledge of how the product works, they often fail at providing sufficient water for the optimal hydration of polymers contained in the jointing sand.

To ensure that your pavers benefit from the best possible wetting process, we recommend that you start by dividing the whole surface into several smaller segments that can be easily monitored individually. During the wetting process, the joints should be given as much water as possible, without generating any runoff. As soon as a thin whitish layer starts emanating from between the pavers, you should proceed to another section of the surface. 

2. Skip surface compaction

Regardless of the sand formula used, good compaction is the one and only way to be 100% certain that all of your joints are filled evenly. The use of a vibrating plate is the best way of obtaining maximal joint strength.

 Techniseal sands are entirely made of angular/sub angular aggregates. This is very important as it contributes to provide maximal interlocking potential, therefore considerably reducing the risk of small air pockets remaining between the paving stones. This greatly impacts the installation’s overall durability.

 During training workshops, our experts often advise participants to double up the compaction angles. For example, once the surface has been crossed in length, it should be passed a second time, this time in width. Completion of this method will ensure that the entire area has been compacted before proceeding with the installation.

3. Use the wrong jointing sand

Today, pavers can be installed in almost any type of environment. Nevertheless, particular conditions call for particular jointing materials. A regular polymeric sand may do the job on a walkway in front of the house or around the garden, but to guarantee durable results in harsher conditions, the wiser choice is to  go with a higher-grade product.

Techniseal’s RG + sand is an excellent choice for typical residential installations on even, low-traffic surfaces. However, on heavily slopped projects high-humidity surroundings or high-density traffic, you should get a high-performance jointing sand.

Since its launch in 2016, Techniseal HP Nextgel has almost instantly become the benchmark of the Hardscape industry in terms of high performance paver jointing sand. Easy and very quick to install, it offers remarkable results in all types of environment.

4. Ignore weather forecasts 

Despite having the best tools and products on the market available to you, if weather isn’t on your side, a successful sand installation is doubtful, to say the least.

Too often, contractors forget to verify the weather forecasts in the hours leading to and following a scheduled installation, thus putting the quality and durability of their hard work at high risks.

It is highly recommended to work on a completely dry surface. The rule of thumb, when installing polysand is to wait at least 24 hours following a rainfall before starting the work. Furthermore, you will also want to avoid any sustained wind and rain in the 24 hours following the installation. 

5. Tell customers that pavers are 100% maintenance free

 As the old saying goes: Nothing lasts forever!

Repeatedly mentioning to your customers that paver installations do not require any maintenance is leading your company down a dangerous path. You should refrain from making promises that may come back to haunt you.  

The accumulation of dirt and other atmospheric dust and contaminants may interfere with the moisture evaporation process of paver joints. Joints could therefore generate mildew and moss and even rot prematurely. We recommend that you hire a pro to perform spring maintenance of almost any hardscape structure.

Within its ProSeries line of products,  Techniseal offers a wide range of sealants and other maintenance products that are specifically designed to overcome most types of stains and simultaneously protect pavers against the damages of time. 

HP Nextgel: The best sand in the business!

When in doubt, always go for the higher grade polymeric sand!  In that department, thousands of paver experts agree, HP Nextgel is the best polysand in the industry!

Talk to your Techniseal representative today to learn more!