A-JOINT Polysand Pro Jointing Sand – Narrow Joint Filler for Paving
Price range: €85.00 through €90.00
A-JOINT Polysand Pro is a ready-mixed polymeric jointing sand built for narrow paving joints. It fills joints from just 1–5mm wide, so it suits tightly laid block paving on patios, paths, and driveways. Because the sand is virtually dust-free and leaves no binder film, it works well on coated or sensitive paving surfaces too. Once applied, it becomes rainproof and walkable within 3 hours. Supplied in 25kg bags, with coverage varying by joint size and paving type — smaller units like block paving use more sand per m² than larger slabs.
Description
A Narrow-Joint Sand Built for Precision Paving
A-JOINT Polysand Pro is a specialist jointing sand designed for very narrow joints. Unlike standard kiln-dried sand, it uses a polymeric binder that locks the joint in place while still allowing water to drain through. As a result, it holds firm against washout, weather, and general foot traffic.
Because the grain size is so fine, this sand suits tightly laid composite paving. It works equally well on private patios and on busier public paths, so it’s a strong choice whether you’re finishing a small garden project or a larger commercial job.
Simple to Apply, Fast to Set
Application is straightforward. First, spread the sand across the paving. Then, work it into the joints and clean off any excess from the stone surface. Finally, activate the binder with water to lock the joint in place. Since the sand produces very little dust during this process, it’s a cleaner job for both professionals and DIY users.
Once applied, the joint becomes rainproof and walkable after just 3 hours, so you won’t need to close off the area for long. In addition, the sand can be applied from a ground temperature of 5°C, which gives you a longer working window across the year.
Flexible, Weed-Inhibiting, and Surface-Safe
The finished joint stays flexible over time, which helps it cope with ground movement on both new and renovated surfaces. It also carries a weed-inhibiting effect, so it helps keep joints cleaner for longer with less maintenance.
Furthermore, because the sand leaves no binder film on the stone surface, it’s suitable for coated and sensitive paving finishes as well as standard block paving. This makes it a safe option where surface appearance matters.
Pack Size and Coverage
Each bag holds 25kg of jointing sand. However, coverage varies depending on joint width, joint depth, and the size of your paving units. Smaller units, such as bricks or setts, have more total joint length per m² and therefore use more sand. Larger units, such as patio slabs, need less sand per m² since there’s less joint length to fill. For an accurate estimate, measure your stone size and joint dimensions before ordering.
Specifications Table
| Spec | Detail |
|---|---|
| Product type | Ready-mixed polymeric jointing sand |
| Joint width | 1–5mm (very narrow joints) |
| Joint depth | From 30mm, or 2/3 of stone height |
| Minimum application temperature | 5°C ground temperature |
| Rainproof / walkable | After 3 hours |
| Dust level | Virtually dust-free |
| Surface suitability | Coated and sensitive paving surfaces |
| Colours | Neutral, Grey, Brown, Black (confirm stocked range) |
| Pack size | 25kg bag |
| Coverage rate | Varies by joint width, joint depth, and paving unit size |
5. FAQs
Q: What joint widths does A-JOINT Polysand Pro suit?
A: It’s designed for very narrow joints, from 1mm up to 5mm wide, making it ideal for tightly laid block paving.
Q: How long before the paving can be walked on?
A: The joint becomes rainproof and walkable after 3 hours, so downtime is minimal.
Q: Is it safe for coated or sealed paving?
A: Yes. Since the sand leaves no binder film on the stone surface, it’s suitable for coated and sensitive surfaces.
Q: Does it help stop weeds?
A: Yes, the polymeric binder has a weed-inhibiting effect, which reduces maintenance once the joint has set.
Q: What temperature is needed for application?
A: You can apply it from a ground temperature of 5°C upwards.
Q: How much coverage does one 25kg bag give?
A: Coverage depends on your joint width, joint depth, and paving unit size. Smaller units like bricks or setts have more joint length per m², so they use more sand than larger units like patio slabs. Measure your stone size and joint dimensions before ordering for an accurate estimate.
Additional information
Available in:
| Colour | Neutral, Stone Grey, Basalt |
|---|







