What is Polymeric Sand?
Polymeric sand is a mix of fine sand and polymer additives. It is mostly used to pave patios, walkways, and driveways. When the polymers activate, they bind the sand matrix inside paver joints. This makes the sand very durable and stable. It is then able to keep out weeds, grass, and ant hills which might otherwise form. It also prevents washout, which happens when rain and other water seeps into the pavement and washes between layers, destabilizing the pavement.
Polymeric sand is very stable and stays put even under heavy rain, so this washout will not occur. Despite this strength and stability, it’s also flexible enough to prevent cracks that might appear from freezing and thawing. This makes the application of polymeric sand perfect for patio restoration and patio repair projects.
Polymeric Sanding Installation
Polymeric sand is stable and versatile, but it requires a specific method of installation. This should always be done by a professional. First, the surface is inspected for moisture, which could compromise installation once the sand is applied. Weather conditions are checked before scheduling installation, as the sand cannot be installed on rainy days or below a temperature of 32 degrees Fahrenheit. Only then is the sand poured on the area to be paved.
It is poured evenly to promote consistency and swept into the corners of joints. Then the sand is vibrated deeper into joints with a plate compactor, before being swept and vibrated one more time. Residue is blown away before applying water to the surface of the sand. This activates the polymers. The sand is watered every three to four minutes, and once this process is complete, a blower is used to dry it.
Polymeric Sanding Maintenance
Once applied, polymeric sand used for paving patios, walkways, and driveways is generally permanent. It will not easily wash away and can often last for years. Certain conditions are necessary for proper installation and maintenance. Prior to installation, we will make sure the surface is totally dry and the weather is dry and warm. The warmer the air temperature, the faster the pavement will dry.
Immediately after installation, the area should not be used. Avoid foot traffic if possible, but especially high heels. Vehicles should not use driveways for one to two days. In case of future problems, such as erosion, it’s a good idea to have an extra bag of polymeric sand on hand. Store it in its original bag in a dry place away from UV rays. If kept outside, it should be covered with a waterproof tarp.
Contact Carlton Cleans
Do you have a patio that needs repaired? Contact us today for a free quote on polymeric sanding for your patio/surface.