Product Overview Description. Add sturdy wood or metal edging to. Sweep the jointing material over the surface following the manufacturer’s guidelines and filling the joints of the pavers. Proper installation of polymeric sand involves compacting the sand for a tightly compacted joint that will last longer. 4895 upvotes. Specifications. With a push broom sweep it into all seams of your paver surface. Note that this product's coverage power can vary depending on the type of paver used. . Depending on the type of concrete sealant you use and the conditions in which you. Pass a vibrating plate (or use the rubber mallet) over the entire surface a second time. There should also be enough depth, around 1-1/2 inches, for this jointing sand to be effective. The best polymeric sand for your pavers to increase durability and give a finished look. In terms of the day-to-day appearance of your pavers, polymeric sand may offer a cleaner look than regular sand. 40 lbs. Make sure there isn’t any dampness prior to diving right in and dumping those. No doubt many patios and walkways were done with sand before polymerics came along. Easy step by step application of polymeric sand for your pavers so you end up with a beautiful professional looking finish on your pavers! (Product used spe. Brush in multiple directions for more even coverage. For beautiful, long-lasting DIY paver installations, rely on Techniseal's EZSAND polymeric sand, a fast and easy-to-apply solution for the jointing of interlocking pavers. Coated with a water-activated polymer, the grains of polymeric sand stick together when dampened, producing a seal that looks like grout and makes a stronger. Polymetric sand will help about 80%. Generously cut one of the corners of the bags open. Ideal for stabilizing horizontal or sloping works such as driveways, patios, pool decks, pedestrian ways, roadways and traffic areas, Magic Sand/Paver Locking Sand is applied dry and. Available in 25 KG bags. GATOR MAXX G2 is recommended for a variety of uses including pool decks, patios, footpaths, driveways. Polymeric sand is made of pretty fine sand. 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. When it is combined with water it creates a strong bond that is ideal for filling in joints in pavers. Finish the Patio. Polymeric sand also doesn’t work well when mixed with other types of sand. If you recall, we used some leftover paver sand to fill the cracks between the stones instead of spending the $95 that the stoneyard would’ve charged for a delivery of the polymeric stuff (which has some cement-like qualities to help keep it in place and block weeds a little better). If you plan to use polymeric sand for the joints, read the label. Polymeric sand such as Alliance's Super Sand G2 or Techniseal's HP NextGel , is essentially glue and sand mixed to form a strong bond that is also flexible enough to float. Silica sand is slightly better. If it is stuck on the surface of the paver you can heat up some water in a pot and pour it on the surface of the stone and scrub the sand that has hardened. Play it smart and don’t take risks if there’s significant rain in the forecast. In this do it yourself video you'll learn how to apply polymeric sand to pavers and interlocking stone joints. Paver joints need a mixture of coarse and medium sand to allow complete filling of the joint. Then continue with these steps: If the surface has a rectangular shape, then all you have to do is multiply these dimensions to get the surface area: A = 19 ft x 8. Polymeric sand improves the overall durability of the hardscape you install. Follow directions on the product, but in general: Pour it on dry brick and brush it into joints with a push broom until they are about ⅛ inch from. Polymeric sands have really come along way since their inception in 1999 by Techni Seal. This material has a fairly simple installation. 4. We use 1/2 inch galv. These are just a few tips to keep in mind when sealing pavers with. So do not be alarmed when small cracks form. Choosing a good quality polymeric sand will make it easier to apply and you’ll end up with a much cleaner finished look. The advantage of polymeric sand is its binding properties, which is part of the whole 'interlocking' thing of pavers, and it's resistance to being washed away. How to Install Polymeric Sand on New Interlock Walkways and Patios. The main difference between the two is that polymeric. Surebond Polysweep Polymeric Joint Sand. What is the proprietary polymer? Essentially this is a man-made chemical binder or organic biner that binds the sand together and to create a single surface between the joints of the interlocking pavers. If you recall, we used some leftover paver sand to fill the cracks between the stones instead of spending the $95 that the stoneyard would’ve charged for a delivery of the polymeric stuff (which has some. PowerLoc paving sand is a polymer-based product that prevents it from washing out or cracking. The best bet is as the other poster suggested, find the other ant hills in the area and destroy them too. If you install pavers and interlock them with polymeric sand but skip the compacting process, the joints will loosen and break soon enough. Pretty every single manufacturer of polymeric sand in the marketplace has three main ingredients: Quartz silica. Sika FastFix-110 provides a durable joint that resists erosion, weed growth and insects. Applying Polymeric Sand for Paver Joints. Maple. It's a product that's created when you mix a fine sand with a silica additive and water. Clean your interlocking bricks (a pressure washer can accomplish this and the previous step at once). Move the brush in a sideways pattern brushing areas most affected by sand buildup. Remove excess residue with a leaf blower. Screed the 1", tamp one more time, then use the same pipe for screeding the sand. yard fill + View All. More joint sand can be reapplied until full. This glue holds the sand in place so that when it rains or running water, the water will not wash away the sand. Next, try a pressure washer. Rather than use paver sand I used this. Applying polymeric sand involves pouring it into paver joints, watering it, and allowing it to set for a few days. Keep in mind that sand is only a temporary solution for repairing driveway cracks. Tap stones with a rubber mallet to compact sand. Simply sweep the sand into the joints and saturate with a water mist. It is important to properly activate the sand by applying sufficient water to fully activate the joint. Proper wetting of the polymeric sand is essential for optimal stabilization of paver joints. For a more solidified joint, polymeric sand is used which contains the same sand but with binders included into the mix which will react with moisture to form a solid erosion proof joint As the. Fill the crack with the sand, tamping it down firmly as you go. Professional Installation How to Apply Polymeric Sand? – The Importance of Sanding a Paver Installation Sanding a paver patio is a pivotal part of its installation process. Sweep sand into joints with a broom. If you are a homeowner that wants to take on a paver project, check out this video to learn how to install polymeric sand in the joints of the concrete paver. pipe for screed guides. of coverage. Spread about 30mm of mortar where you will lay the first pavers, then place the first paver. ft. Once your pavers or flagstone is in place, sweep polymeric sand into the joints. spray the solution on the mildewed portion of the patio and let it sit for 5-10 minutes. This will create some vibration and compact the sand. Spray water on the pavers to make sure that the sand hardens and let it dry for some time. Compact Everything Together. I tested 2 bricks but don't like the look of it. The temperature should be above 0 degrees celsius (32 degrees fahrenheit) during the 48-hour drying period. and Instructions. Make sure to work when the pavers are completely dry before spreading the sand. A high quality polymeric paver fini. Continue laying the pavers, using a string or straight edge as a guide to maintain straight lines. Polymeric Sand Price vs. On Thursday (2 days from today) I want to apply the polymeric sand. Bulk Pricing. Spread over dry pavers and thoroughly sweep the Powerloc diagonally into the cracks with a broom. However, you should think carefully about the long-term benefits; polymeric sand may cost more initially but add up to. 'How to' Correctly Apply Block Paving Sealer by Roller (Pt. some places develop divots that need more sand. The material will settle when you hose it down, so repeat. Filling joints between interlocking pavers and slabs has never been easier than with Sika FastFix-110, a high performance polymeric sand! Its superior quality provides for a durable joint that resists erosion, weed growth and insects. A smart choice for residential installations such as Driveway, pathways and Patio. Its job is to help with the interlocking process, to resist weeds and give colour options for a cleaner appearance. Keep the sand in the joints. Suited for residential installations (driveways, walkways, patios, etc. To solve this problem, Quikrete developed PowerLoc Jointing Sand. As you can see the list of benefits is quite impressive. Re-sand your pavers once dry. Put simply, this kind of sand is a gritty material that’s put in the joints of pavers. There are many different qualities of polymeric sand. Historically, a sealer contractor could approach a seal job with a 90% chance that the pavers would require two coats of a film-forming sealer to be properly sealed. The video I'm watching suggested to use polymeric sand between the bricks. Tips. This is the process of moving that jointing compound to the bottom of the paving stone. A cost-effective alternative to HP Nextgel for smaller-duty jobs. 1. Choose a high quality polymeric sand that uses high quality (clear) polymers and avoid polymeric sand that contains portland cement. You can mix borax into your polymeric sand before sweeping it between the pavers. You can then stop watering this section of the surface and move on to the next one. Spread over dry pavers and thoroughly sweep the Powerloc Paving Sand diagonally into the cracks with a broom. In terms of the day-to-day appearance of your pavers, polymeric sand may offer a cleaner look than regular sand. Polymeric dust is simply polymeric sand that has. Sealant: $40–$200. Polymeric sand is water activated and hardens after curing. When the poly sand hardens it doesn’t expand to fill the joint, it just gets hard and over time, with expansion and contraction of the pavers, the hardened sand will just crack and crumble or even just pop. interlocking pavers. Next, you’ll vibrate the sand even further down into the joints using a plate compactor. Benefits from the Nextgel technology for cleaner application and faster wetting. 2. . Depending on how big your tamper is, 2-3" lifts are better than thicker ones. Afterwards, you can sweep the excess joint sand between pavers and store it again for future use. W x 4 in. These binders help to hold the pavers in place and prevent them from shifting or moving. Sand is often used. Homeowners often forget to sweep or blow off residual. Be sure to clear all unwanted fragments between the joints. Polymeric dust is simply polymeric sand that has. Composed of a mix of graded sand and binder that flows smoothly down joints, it allows for a fast and effective installation of pavers. that you might need for other. In this do it yourself video learn how to use polymeric sand for. Polymeric Sand; What It Is and How To Use It. I'm hoping a shop vac can remove the dry. bucket can cover up to 55 sq. Wash the surface with a pressure washer (medium pressure of 1600-2000 PSI ) to effectively get rid of haze without removing joint sand. In this Instructional video, you'll learn how to apply polymeric sand to pavers and interlocking stone joints!Finishing projects Using Mastercraft High-Perfo. . With the sand exactly where I wanted it, I grabbed the hose and set it to the “shower” mode. Polymeric sand is specifically designed for use in paving stone or flagstone joints, and it provides some flexibility for the joint and helps restrict the growth of weeds and grass. Suited for residential installations (driveways, walkways, patios, etc. It is recommended to apply the polymeric sand every 2 years in order to maintain the interlocking paving stone. Remove existing weeds & moss. Ensure no sand is sitting on the pavers themselves, even if you have to sweep individual pieces; polymeric sand is hard to remove once wet. Using. Not only will polymeric sand improve the strength and durability of a surface, but it will also help resist damage. Installing Polymeric Sand The introduction of Polymeric Sand to the interlocking paver industry has had a positive impact when the application works as intended. Allow the bricks to dry. Learn how to install paver locking sand in a concrete block patio or walkway. Make sure you give your patio a good clean wash to remove all signs of the sand. The second layer should be applied in the same manner as the first layer. The following demo illustrates the steps to successfully install JOINT-LOCK SAND® on your next paving stone installation. Interior vs. Apply white vinegar to dirty and stained pavers with a spray bottle, so that it distributes evenly. Polymeric Sand. Joint sand is an angular washed sand used to fill the joints of the pavers from the top. Applying polymetric sand is a simple process. If you used a 3/4" angular crushed stone for the base and concrete sand for the bedding, then the ideal jointing compound to use would be regular jointing sand or polymeric sand. Step 2. Polymeric sand is fortified with polymer to prevent washout between pavers. Does this need to be watered in and does it harden somewhat like the polymeric sand ? Asked by: Weedman. Sweep the sand all over on the paved surface with a dry, stiff bristled broom. it forms a binding agent that will help lock the pavers together. It is sometimes called jointing sand, paver sand or hardscape sand. Create a mixture of the water and soap and pour it onto the pavers. Spray water mist over the entire paved or hardscaped area, from high point to low point. Perfect for the jointing of Interlocking Paver. 9 Expert Tips On Using Polymeric Sand from If you chose polymeric sand to seal the joints it can last up to 10 years! You can trust jhc landscaping with your interlock sealing and sand application because we know all the trade secrets. Before pouring the sand, you must dry clean the surface to remove any debris or dust. A cost-effective alternative to HP Nextgel for smaller-duty jobs. In order to achieve optimum performance, Surebond sealers and PolySweep polymeric sand have specific installation instructions that include weather considerations listed on the product packaging and technical data sheets. Go with SAKRETE, The Pro's Choice since 1936. Polymeric sand comes as a dry, premixed powder. If you only have a crust, you don't have a proper bond in the joints. Use our app. This is especially helpful if you are wondering how to remove polymeric sand from pavers. Techniseal Polymeric Sand for Paver Joints Installation Procedure. If applied properly, the binding agent in the sand will harden in the joints and completely prevent weeds and ants from causing cracks in the surface. . This sand "locks" the pavers in place. The main function of this product is to improve interlock while creating a highly durable, cohesive joint material. Buy 12 or more $ 3. Pour. Empty spray bottles are available at your local hardware store. Thoroughly soak the affected areas with the vinegar. A smart choice for residential installations such as Driveway, pathways and Patio. Cut the polymeric sand all around the paver using a utility knife, using the blade of the knife. I am looking for a low maintenance, longer lasting solution. Polymeric sand usually lasts three to five years but can last up to 10 years if appropriately applied. . paver leveling. Next, sweep it into and across the joints using a stiff push broom. Fill joints between interlocking pavers and slabs! Use SAKRETE Polymeric Sand, a unique mixture of polymer binders and calibrated sand, available in Beige or Grey. f. When used for something like sealing paver joints, polymeric sand should last for 10 or 15 years, whereas grout will only last for three to five years. Our repairs last. 7 kg) bags - 64 per pallet. Here is a. Applying the sand is the last step in making a paver patio, path or driveway. Polymeric sand is a type of material used to stabilize and fill the spaces between pavers. Remove excess sand with a leaf blower. Sweep a broom across the pavers at a 45 degree angle to fill joints. • Temperature should remain above 0°C during the 48-hour drying period. If they did not use polymeric sand, the best recommendation would be to remove the joint sand and rejoint with Techniseal HP NextGel Polymeric Sand. It is made from a mix of fine sand and various additives that become a powerful bonding agent when it comes into contact with water. Sand sealing is generally done to seal the pores after premix carpet work is completed. well like a polymeric sand joint. Settle the sand by compacting with a hand and/or plate tamper (with rubber pad to protect pavers). QUIKRETE® PowerLoc™ Jointing Sand is a polymer-modified graded sand for filling between interlocking pavers, brick, patio blocks and concrete slabs. . The. Then scrape away as much of the stuff as you can. Pros of Stamped Concrete. Fill joints between interlocking pavers and slabs! Use SAKRETE Polymeric Sand, a unique mixture of polymer binders and calibrated sand, available in Beige or Grey. Helps prevent weed sprouting and damage caused by insects. Apply polymeric sand to cracks between bricks – this method allows you to fill in cracks between bricks with a mixture, preventing weeds from growing. Known as paver. Once all the pavers are set on their designed location, add a polymer sand on the gaps between the pavers. Simply sweep the sand into the joints and saturate with a water mist. Superior to regular sand for paver and slab joint applications, Stone Mason ® Magic Sand/Paver Locking Sand is an advanced polymer-modified binding joint sand. If, by chance, you do get hit with some unexpected weather after your installation, don't panic. Interlock companies will pour polymeric sand between the natural joints of the pavers to secure them in place. mix a solution of 20-30% bleach in water and add about a tbsp of laundry detergent per gallon of this solution. Most sands require enough water to saturate the sand just until the water stops soaking into the joint. Settle the sand by compacting with a hand and/or plate tamper (with rubber pad to protect pavers). Polymeric Sand. 20-30 mesh). Apply another round of polymeric sand as close to the paver tops as possible. You want sand used for concrete mix because it has a rough, sharp, interlocking surface as opposed to desert or landscape sand which is basically round and smooth. Savings Center. I've found that the foam insecticide that expands has been the best for killing an ant hill. Weeds and ants can overtake paving stone if regular jointing sand was used. . Polymeric sand also doesn’t work well when mixed with other types of sand. It is often called polymeric sand because of the chemical binder that is put into the mixture. Then, sweep the sand into the joints with a large medium-bristle broom. With a polymer binder, ROMEX ® NP Jointing Sand is a self-hardening jointing sand that overcomes the shortcomings of cement grouting. Fill all joints with commercial-grade polymeric sand to stabilize joints and block weeds; water sand to activate the polymers and begin the hardening process. Proprietary polymer/organic. Use a large push broom for a large area, or a small push broom for a small area. Filling joints between interlocking pavers and slabs has never been easier than with Sika FastFix-110, a high performance polymeric sand! Its superior quality provides for a durable joint that resists erosion, weed growth and insects. Then think about the desired thickness of the paver sand. Model: #11-7556. Spread polymeric sand in sections. Exterior Use. The advantages of using polymeric sand for paving mostly revolve around its strength and durability as a joint filler. 40 lbs. Step 5: Mist. Only apply it on a dry, sunny, day. Polymeric sand typically takes anywhere from 6 hours to 2 weeks to dry, depending on moisture and weather conditions. Step 1: Use a dry brush to scrape off light polymeric sand buildup. Its high-strength properties ensure. So it’s important to properly install high-quality polymeric sand to ensure you get the most out of your installation. Choosing the right polymeric sand. Grout is generally an interior joint sealer, whereas polymeric sand is usually an outdoor joint sealer. If there is any moisture present, it will cause the. Step 2: Sweep the surface. Polymeric sand would keep the water from flowing through. For regular interlocking paver joints ( ⅛" to ½" wide) One 40 lbs. Place a level on top of the paver and tap it gently with a rubber mallet until it is perfectly level. . BUT it is a significant step up in price ($25 -. Use a hard bristle broom to initially sweep the sand into the joints. Book Your Appointment Today:Typically the installation of a jointing compound follows a few steps: In this process, the material is swept or moved around the surface of the project to ensure that the sand is filling the joints of the paving stones. A couple of hours work once or twice a year is usually all that is needed to keep your interlocking concrete pavers in good condition. I show you how to apply polymeric sand to interlocking stones in this video. Seal your pavers. Perfect for the jointing of Interlocking Paver. First, the polymeric sand must be firmly activated into the joints between the stones. Installing Polymeric Sand The introduction of Polymeric Sand to the interlocking paver industry has had a positive impact when the application works as intended. com As jointing material As you may know, polymeric sand is primarily used to fill the joints between interlocking pavers. Polymeric sand is just graded sand, but with additives like silica. Silica sand. Durable—concrete withstands heavy loads and extreme weather;Specifications. Perfect for the jointing of Interlocking Paver. Joint-It Fine is a weed resistant paving jointing sand, which has been developed specifically for use with block/brick paving, most commonly used on driveways or more heavily trafficked areas. Set aside ample time for the project, haste makes waste. Apply Polymeric Sand to Stop the Growth of Weeds between Paving Stones. What happens is that when you activate the poly sand with water during installation, there is an active ingredient that comes out of the sand product. Now, most pavers are interlocking pavers, which means they have small ridges on the sidewall of the pavers, and when installed correctly, these ridges combined with the sand create the interlock, which keeps the bricks from shifting and keeps them in place. How To Apply Polymeric Sand To Interlocking And Pavers by civil engineering hacks - YouTube Sand sealing is generally done to seal the pores after premix carpet work is. In the long run, using polymeric sand will save you money from not having to relay the interlocking pavers as often. You can find it anywhere, costing $5 to $20 per 50-pound bag. Filling joints between interlocking pavers and slabs has never been easier than with Sika FastFix-110, a high performance polymeric sand! Its superior quality provides for a durable joint that resists erosion, weed growth and insects. This type of sand is applied dry and hardens after moistening. Pour the polymeric sand over the surface and spread it carefully along the pavers using a push broom. In this study, an. Step 1. Repeat this step as many times as you wish until the polymeric sand residue is removed or deposited into the joints of the paver. For long-lasting joints, follow all the procedural guidelines in the manufacturer’s manual. Durability and Longevity. Apply sealer of choice, depending on desired finish. Generally speaking, you’ll want to perform three rounds of watering. Step 1. . It is one of a few different jointing compounds available on the market to fill the joints of pavers for the purpose of achieving horizontal interlock in the interlocking concrete pavement. 13 hours ago · An interlocking concrete paver is a type of paver. Then, using your broom, sweep the sand into any joints until the appropriate level is reached. For more information please click Landscaping Design Services. 2 – First Sweep. Make sure to press the additional sand down so that it is compacted. Filling joints between interlocking pavers and slabs has never been easier than with Sika FastFix-110, a high performance polymeric sand! Its superior quality provides for a durable joint that resists erosion, weed growth and insects. Polymeric Sand Polymeric Sand; What It Is and How To Use It Polymeric sand is a granular material placed between the joints or seams in brick pavers or stone in patios, walkways…How To Apply Polymeric Sand To Interlocking And Pavers Which Sand is Best for Paver Joints Braen Supply. Once all the sand has been packed into the gaps and the surface of the pavers are free of sand, lightly water the patio. QUIKRETE® HardScapes Polymeric Jointing Sand (No. 7. 2. The polymer modified sand hardens as it dries and resists erosion, weed. Powered with ceramic flex technology, a technology found only in the most advanced polymeric sands, it’s a blend of polymers of fine sand. It is specifically designed to fill the joints between pavers, and features a mix of smaller and coarser particles that lock together. Let it sit for 10-15 minutes, then scrub with. 7. As an accent, I installed a compass rose made to order with slate and stone that is flush with the pavers. Once the pavers are clean, it’s time to seal them. • Check the weather forecast: no precipitation for the next 90 minutes. Reviews. Carefully read and follow the directions of the product prior to beginning the project. Applying polymeric sand involves pouring it into paver joints, watering it, and allowing it to set for a few days. The first coat would soak into the paver, and. 7 kg. Sika FastFix®-110 is a high performance polymeric sand designed specifically for filling joints between interlocking pavers, stone, bricks and slabs. After applying the jointing sand, compacting is advised and then adding more sand. Note that this product's coverage power can vary depending on the type of paver used. These heavy-duty materials can be used in between both pavers and slabs. With assembled dimensions of 15 in. Following weather guidelines when applying sealer and installing polymeric sand will help lead to a successful outcome of the project which leads to a happy customer. Use a level to make sure each brick is lying flat. Powered with ceramic flex technology, a technology found only in the most advanced polymeric sands, it’s a blend of polymers of fine sand. Vi. Fill the paver joints up to 1/8″ (3 mm) from the top of the paver edge or 1/8″ (3 mm) below the chamfer with Gator Maxx G2 polymeric sand. Durability. This covers the basic paver repairs that you are likely to need from time to time. From the sweeping to the watering, these are the reasons why polymeric sand may fail. Take care not to step in the sand or compress it. In this video, I show you some brick paver maintenance with polymeric sand. . Spread more product to fill joints again. It allows for some movement of the pavers without lossof the jointing sand. 2. Talk directly with our team. 5. Step 4: Clear the Surface of the Pavers. This alone can prevent ants from nesting on your pavers for years and years on end. PRE-BAGGED PRODUCTS POLYMERIC (HARDENING) SAND CEMENT MIXES ASPHALT REPAIR SILICA SAND GATOR SUPER SAND BOND High Performance Polymeric Sand For Concrete Paver, Wetcast & Natural Stone Joints up to 1″. Pressure washing - High Pressure 4000 psi, used to remove old debris and weeds. Jun 3, 2014 — If you have an existing interlocking paver patio with regular sand that causes maintenance problems, it's not too hard to replace the existingPoly sand is one of the most preferred ways to seal your interlock in Barrie and many parts of the world. The ICPI refers to joint sand in their tech spec sheet #2. Sweep OPTIMATRIX Polymeric Jointing Sand evenly into the pavement joints using a push broom until the joints are completely filled. 1 SPREAD THE SAND BEFORE YOU BEGIN: • Test product on a small zone. This is usually done after the polymeric sand has been properly installed between paving stones. 7. The best type of sand to use between pavers is a coarse, sharp sand known as “jointing” or “interlocking” sand. Polymeric sand is a sand formula that is swept into the joints of pavers and natural stone to lock in the product, prevent weed growth and insects, and to provide the final touches of any hardscaping job. Products. VIEW PROJECT The Scope: 3 year old textured interlock driveway The Process: Power Wash - New Polymeric Sand - Sealant Spray & Roll Application The Product: High Gloss Penetrating Sealant The Solution: Highly textured porous interlock cleaned, new polymeric sand applied, and sealed with a penetrating sealant. One of the most concerning hazards is it’s potential to cause serious damage and irritation to the eyes. The sand helps prevent future weed growth. Backed by a 15-year limited warranty. Once polymeric sand or paver sand are applied and set (in the case of polymeric sand), it’s hard to tell the difference without a closer look. Step 1. However, if you used an ICPI-recommended hybrid or open-graded base with 3/4" angular stone as a base and 3/16" angular chips as the bedding material then. Continue to fill the gaps until the sand is flush with the faces of the bricks and won’t settle any farther. Available in 15. Regular sand can also last long but will require adjustments every 2 years so that the pavement doesn't shift.