Dansand NO Grow Joint Filling Sand, Natural

Product Information

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: 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.

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 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.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

Finish by lightly dampening the sand with water by misting with a garden sprayer to allow the sand to settle. 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 Sweep the filling material into the joints using a soft broom. Sweep lengthwise and diagonally on the joints until they are completely filled. 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 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.

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. 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? 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.