Dansand NO Grow Joint Filling Sand, Natural

Product Information

For the material to work properly, the joint must be made correctly. A properly executed joint is at least 3 mm wide , well-compressed and completely filled to the edge or bevel of the stone. To avoid weeds and displacements in the paving, the joint must always be filled to the full height of the joint edge and be completely free of soil and other organic material. The paving is cleaned with a stiff broom and the joints are refilled as needed. Moss and algae can be removed by suitable means. Extreme weather conditions can cause white deposits (efflorescence) in the joints and on the edges of the paving stones. However, they are usually washed off at the next rain shower. The deposits can also be removed by regular cleaning of the stones. 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. 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. Paving stones are laid on a sustainable gravel and sand layer in accordance with current standards for paving work. The joint material is water-permeable like ordinary joint sand. Therefore, the base layer must also be water-permeable.

Sweep the filling materials into the joints using a soft broom. Sweep in a diagonal pattern until the joints are filled to the top. The first option is to replace any lost sand as & when needed with Dansand. Simply put, instead of using ordinary kiln dried joint sand next time you just re-sand the joints of your pavers with Dansand. This allows for targeted protection only from unwanted plant life, with the surrounding flowers and bushes in your garden and around your paving installation completely free from environmentally unsafe chemicals or growth-inhibiting compounds. Problems DANSAND® NO GROW™ Joint Filling Sand has been developed to prevent weeds, but it is not a weed killer. The product consists of washed and oven-dried silica sand, to which we have added a natural mineral. The mineral increases the pH-value and the ZAR value of the silica sand, creating an “unfriendly” environment that does not provide nourishment for weed plants. Hence, a weed seed that finds its way to your joint and tries to set roots here, will dry out after a short time.There’s also the benefit of Dansand No Grow’s natural weed-preventing abilities to account for, meaning you won’t need to fork out on a coat of patio sealer to fully protect your paving from unwanted organic pests and moss growth. Environmentally friendly If the paving is new, vibrate twice using a protective rubber mat on the vibrating plate to avoid damage to the paving surface.

Estimated consumption: Approx. 2,0 kg/m 2 at 3 mm joints. Our coverage calculator can help you calculate the amount you need. 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. If you use the filling material for coloured, porous pavings, it may settle in small depressions in the stones, leading to discolouring. This can often be removed with a brush and some soap – see how in our cleaning guidelines.

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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. 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. Compact the joints using a vibrating plate - do this at least twice. Use a protective rubber mat to protect the paving.