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. To avoid weeds and displacements in the coating, 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 coating 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 blooms in the joints and on the edges of the paving stones. However, they are usually washed off at the next rain shower. The salt deposits can also be removed by regular cleaning of the stones.

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. 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 we are sorry to learn that you had a bad experience using DANSAND® NO GROW™. As we understand, you applied NO GROW in 2021. However, you do not specify which exact NO GROW product you were using. In the below answer, we will be assuming that you have used DANSAND® NO GROW™ Joint Filling Sand.Finish by lightly dampening the sand with water by misting with a garden sprayer to allow the sand to settle. Sure, you may need to re-sand the joints every two years as the vibrations from cars or heavy footfall may loosen them over time, but with such a simple brush in application, you’ll have this job done in no time at all! Value for money Sweep the filling material into the joints using a soft broom. Sweep lengthwise and diagonally on the joints until they are completely filled. 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? Estimated consumption: Approx. 2,0 kg/m 2 at 3 mm joints. Our coverage calculator can help you calculate the amount you need.

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.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 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.

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. 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. 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. 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. 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 peelingThe 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.