Polymeric sand can be stored for a long time if stored correctly. It should be kept away from moisture and stored in a cool, dry area with low humidity. It should also be kept away from direct sunlight and temperatures above 120 degrees Fahrenheit.
Once opened and exposed to the elements, it should be used within one year. Even after that, the sand may still be usable, but it should be prudently monitored for any signs of spoilage, such as discoloration, caking, or a strong off odor.
If any of these symptoms are noticed, it should be discarded as it is no longer suitable for use.
Does polymeric sand get old?
Polymeric sand does not get old, but it does wear away over time due to weathering and traffic. High winds or heavy rains can cause the sand particles to break down, becoming finer and less effective.
Over time, the strength of the bond between the sand particles may also degrade, making it less effective at keeping weeds out and sand from washing away. Therefore, it’s important to check the joints of your hardscape and replace any eroded sand as necessary to ensure the stability and longevity of your hardscape feature.
How often does polymeric sand need to be replaced?
Polymeric sand is an aggregate mixture that is used mainly to fill the joints between pavers and reduce weeds, prevent erosion and enhance the stability of the surface. It usually does not need to be replaced, but it may need to be re-applied if the joint spacing begins to deteriorate.
In general, polymeric sand should be inspected every 5 years and re-applied if necessary.
Additionally, if you start to notice weeds, insects, or other signs of decay in the area, then it may be time to replace the polymeric sand. In order to keep your patio looking its best, it is important to sweep away debris and add fresh polymeric sand if needed.
If your polymeric sand is discolored or contains any visible debris, then it should be replaced. Eventually, polymeric sand does break down and will need to be replaced in order to keep your patio looking its best.
What can I use instead of polymeric sand?
Polymeric sand is a specialized mix of fine sand and additives like polymers. It has been designed to harden when exposed to moisture and lock the paver joints together, preventing the growth of weeds and insects.
If you are looking for an alternative to polymeric sand, you could use regular sand, but it will not harden or lock the paver joints in the same way as polymeric sand. You could also use a sand-gravel mix, which will also provide locking benefit to the paver joints, as well as fill the small spaces between stones.
However, you will need to exercise caution when using a sand-gravel mix, as larger pieces of gravel can settle into the joints between stones and detract from the look of the finished surface. Another option is using a crack sealer to fill the joints after completing the paving.
This will provide an adhesive cap over the joint while also filling it, though it will not be as strong as the locking of a polymeric sand.
Can you pressure wash pavers with polymeric sand?
Yes, you can pressure wash pavers with polymeric sand. It is important to note that high pressure washing should be avoided as this can damage the sand and lead to the need for costly repairs. Pressure washing should be set to a lower setting, allowing for the removal of any dirt, residue, and debris that has accumulated over time.
If a high pressure setting is used, it is important to cover any polymeric sand joints that can be damaged by the water pressure. Additionally, when washing with polymeric sand, it is important to rinse the surface thoroughly afterwards with clean water.
Doing so will remove any sand particles that may have been dislodged during pressure washing and prevent any future staining.
Why won’t my polymeric sand won’t Harden?
Polymeric sand is designed to harden when water is added. If it’s not hardening, it could be due to a few common issues.
First, make sure the sand was applied correctly. To properly use polymeric sand, the gap between pavers needs to be filled to the top, leaving no gaps or air pockets. This can also prevent proper settling as well.
Then, check to make sure that the sand is dampened before and after installation. It’s essential to use a misting method to wet the sand, however, it’s not recommended to submerge the pavers in water.
During the installation process, mist the sand from underneath so that the water can seep both up and down. Then, mist the pavers and allow them to dry before wetting again. After installation, mist the pavers and stagger wetting them for a second time for a minimum of three days.
Finally, check that it’s not too cold or damp. Otherwise, the pavers will take longer to dry and it’s likely the sand won’t harden as well. If the temperature is below 65°F, the sand won’t harden and you should wait until the weather is warm enough to properly install it.
If you’ve properly followed the steps above, and your polymeric sand is still not hardening, then consider replacing it with a new brand or batch.
What are the problems with polymeric sand?
Polymeric sand can cause some problems in certain landscaping applications. One issue is that the sand is prone to becoming washed out of pavers, causing sinkholes and shifting pavers. This is due to the sticky nature of the sand, which binds with moisture and can become washed away.
Another issue is sand erosion, which can cause the sand to disappear in areas with heavy wind or rain. If the sand has been improperly jointed and filled, it can erode away and wear away the paver surface.
Additionally, weeds and other vegetation can easily grow between pavers if the sand has not been spread uniformly. Polymeric sand can also become quite dirty and unsightly over time due to buildup of dust and debris, requiring frequent cleaning and maintenance to keep it looking nice.
Finally, polymeric sand is more expensive than regular sand, meaning it should be used sparingly to yield the most cost-effective results.
Can you apply polymeric sand twice?
Yes, it is possible to apply polymeric sand twice, however it is not necessary. Polymeric sand is designed to force its way into the paver joints and allow for a deep and lasting bond. Applying polymeric sand twice does not create a stronger bond, it just takes up more time and causes additional clean up.
It is important to properly apply polymeric sand to the paver joints the first time, removing any debris and filling any voids within the paver joints with the sand for a lasting bond. After the first application, clean any excess polymeric sand from the surface of the pavers to complete the application and prevent any staining.
Does water penetrate polymeric sand?
No, polymeric sand does not allow water to penetrate it. Polymeric sand is an advanced blend of sand, polymers and other additives that when applied as a joint-filling material for pavers, blocks, slabs and other masonry products, it helps to solidify the sand and lock pavers into position.
It forms a weed-resistant and durable bond between pavers and helps to prevent weeds, ants and other pests from invading your patio or walkway. The polymer particles in the mixture bind together when exposed to moisture and they create a waterproof seal that resists water penetration.
Thus, water is unable to penetrate polymeric sand, keeping your hardscape structure safe and secure.
How long should polymeric sand be rained on?
Polymeric sand should be rained on for at least 24 hours after it has been applied. This ensures that the sand will be fully cured and that all of the adhesive components have set properly. If the sand is applied in humid temperatures, the curing time may need to be extended.
It is important to note that any rainwater that comes in contact with the sand should be tossed away and not used in the filling process because it could cause the sand to become too wet and will not allow it to cure as effectively.
Additionally, after the curing time is completed, it is important to ensure that the surface is fully dry before walking or driving over the area.
Can I put polymeric sand over polymeric sand?
Yes, it is possible to put polymeric sand over polymeric sand in some certain circumstances. The most common use for this is to repair an area where polymeric sand has been washed away due to heavy rains or other environmental factors.
In this situation, you would use a layer of new polymeric sand to fill in the eroded areas, and then spread a second layer of polymeric sand over the top and tamp it down. This will re-stabilize the joint and prevent washing away.
However, if you are laying a new layer of polymeric sand over an existing layer, you must use a de-tacking agent between the two layers to ensure they bond together and form a single block. Otherwise, the two layers may not bind together properly.
Additionally, you must ensure that the grade of the existing polymeric sand matches the grade of the new polymeric sand, as different grades may not bind together as needed. Careful attention should also be paid to areas with heavy foot traffic, as the new layer of polymeric sand may need to be thicker in these areas.
Can you add another layer of polymeric sand?
Yes, you can add another layer of polymeric sand if desired. Polymeric sand helps to stabilize pavers and prevent weed growth, so if you are wanting to reinforce your existing project it can be helpful to add an extra layer.
Before adding an extra layer however, it’s important to make sure the area is properly prepared. Remove any irregular or loose pavers, sweep out any existing sand, and make sure all of the gaps are free from debris or weed growth.
Once the surface is clean and debris free, you can begin to add your extra layer of polymeric sand. It is important to thoroughly saturate the sand with water before and after you install the extra layer, since it helps it to fully set and prevents the surface from eroding away.
Once the sand is fully set you are ready to enjoy your new and improved paver project!.
Do you need to remove old polymeric sand?
Yes, it is important to remove old polymeric sand before applying new polymeric sand. Removing old polymeric sand will help to ensure the proper installation and performance of the new polymeric sand.
Removing the old polymeric sand is a simple process and involves wetting the sand and breaking it up with a broom or rake, leaving the surface clean and dry before applying the new polymeric sand. It is important to take your time and make sure all of the old polymeric sand is removed.
Any remaining particles of the old polymeric sand could impact the performance of the new polymeric sand. Additionally, when the old polymeric sand is removed, be sure to use a wet/dry vac to remove any debris from the surface and then pre-treat the area with Weedshield, if needed.
This will ensure that the bonding agent within the polymeric sand has the best chance of helping it to bond and harden properly.