Dansand NO Grow Joint Filling Sand, Natural

Product Information

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. 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. 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. During joint filling and during the first days of hardening, the air and soil temperature must be at least 10 ° C.

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 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. The joint material must not be used in the joint directly against a plinth or other masonry. Use neutral joint filling sand here, as otherwise there is a risk of efflorescence or peeling 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. Sweep the paving surface with a soft broom until clear of all excess stone dust. The stone dust may leave a grayish residue which will wash off when it rains.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? We have added a mineral additive to DANSAND ® joint filling sand, DANSAND ® Stone dust and DANSAND Kerama ®. The mineral has a naturally high pH value, which creates a nutrient-poor environment in your joints. The weed seeds dry out and can neither take root nor germinate. 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.

Estimated consumption: Approx. 2,0 kg/m 2 at 3 mm joints. Our coverage calculator can help you calculate the amount you need. Sweep the filling material into the joints using a soft broom. Sweep lengthwise and diagonally on the joints until they are completely filled. Compact the joints using a vibrating plate - do this at least twice. Use a protective rubber mat to protect the paving. 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.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.