Dansand NO Grow Joint Filling Sand, Natural

Product Information

Finish by lightly dampening the sand with water by misting with a garden sprayer to allow the sand to settle. Sweep the filling materials into the joints using a soft broom. Sweep in a diagonal pattern until the joints are filled to the top. For new and existing paved surfaces of concrete and natural stone. Only to be used for outdoor use on a dry surface. Only suitable for an unbound base layer. Suitable for private use. Estimated consumption: 20 kg for approximately 5-10 m 2. For 14x21x5 cm paving stones with a joint width of 2–3 mm = 2.0 kg / m 2. Our coverage calculator helps you calculate the consumption of joint filling material. The filling depth must be at least 40 mm. The joint width must vary between 1-5 mm. We recommend a joint height of min. 4 cm when filling your joints to ensure that the roots of the seed do not have enough time to find nourishment, as it will dry out before then.

The content of the bag should be mixed before sweeping the material into the joints otherwise the binders will not be mixed with the silica sand. Maybe some of your joints have hardened and some of them have not? If so, the binders have probably not been mixed with the silica sand. Although Dansand No Grow is more expensive up front than your average dry jointing sand, the long-lasting benefit of its hardened seal offers good value for money. Dansand No Grow is widely available from many popular DIY and hardware retailers, commonly found in 20kg bags that should cover around 5-10 square metres each. If the paving is new, vibrate twice using a protective rubber mat on the vibrating plate to avoid damage to the paving surface.Try to save any left over sand for future use in areas of paving you may have missed or is lost due to wind and rain. Estimated consumption: Approx. 2,0 kg/m 2 at 3 mm joints. Our coverage calculator can help you calculate the amount you need. DANSAND® filling sand is not a remedy for weeds. To prevent existing weeds from growing, all weeds – including weed roots – must be removed before refilling the joints. Clean the joint to a depth corresponding to the entire height of the stone. This is done using a joint cleaner. You can also use a high-pressure cleaner, but be careful not to damage the paving stones or the sublayer. Top up the joint.

The ultimate goal is to AID water flow towards the house which has ACO drains around the edge to run the water away rather than have it spill into the gaps and into the ground around the house, missing the drains. I just jet washed my huge drive, next step is to kill the weeds and then I am looking to fill the huge gaps between the slabs. I am after advice on what to fill it with, keeping in mind the following: The NO GROW mixture consists of washed and dried silica sand as well as nutrient-poor minerals with a high pH value. The high pH value causes weed seeds to dry out so that they cannot take root and germinate – in a completely natural way. The minerals dissolve slowly and can only be washed out after 10 years of rain. With the correct use of DANSAND ® joint filling sand, you get a great result that lasts for many years.

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Also, the weather and substarate should be dry for the joints to harden completely. The joints do not withstand rain whitin the first 24 hours after pointing. Maybe this is the case? Although the paving sand with weed killer is a little more expensive to buy initially than normal kiln dried sand. Buying the weed killing jointing sand should in the long-term help save you both time and money on maintaining you paving. It saves you money and time by not having to buy expensive weed killers. It is therefore important that you filled your joints in a height of 4 cm when you first applied DANSAND® NO GROW™ in 2021. Likewise, it is important that you have are maintaining your joints on a regular basis, making sure that they are always completely filled. Sweep the filling material into the joints using a soft broom. Sweep lengthwise and diagonally on the joints until they are completely filled.