A-Joint® Polysand Pro is the 1-component jointing sand for concrete and clay paver surfaces with very narrow joints from 1 mm. Permanently flexible, so no cracks form, and load-bearing up to 40 tons.
Tightly laid cobblestones, pavers or concrete tiles with joints from 1 mm require a fine screening curve that completely fills the joint. A-Joint® Polysand Pro powered by ECCO is designed for this: the jointing sand sweeps easily into narrow joints, without you having to resort to wider joints or another product system.
A-Joint® Polysand Pro powered by ECCO has unlimited working time: the binder is only activated by water, after sweeping in. For large surfaces, that means no time pressure, no mixing mistakes and no leftover waste. You work at your own pace, in sections, and only activate the binder once the surface is completely filled.
A-Joint® Polysand Pro powered by ECCO is low-dust and leaves no binder film on the stone surface. Result: the paving retains its original appearance, even with coated or porous stones.
A 1-component polymer jointing sand that fills narrow joints, remains permanently flexible, and leaves no film on sensitive paving.
Do you want to use A-Joint® Polysand Pro powered by ECCO in your project, but don’t want any leftovers or to have to reorder? Calculate exactly how much you need in advance with this handy product calculator.
Suitable for heavy-duty paving and narrow joints:
Also suitable for DIYers renovating a terrace or driveway at home.
Each product is tested for water permeability, hardness, and durability before it is brought to market. The values in the table below serve as a reference; actual performance may vary depending on the substrate and application.
| Property | Value |
|---|---|
| System | 1-component jointing sand (polymer) |
| Addendum width | 1–5 mm |
| Insertion depth | From 30 mm or 2/3 of the stone height |
| Tax | Up to 40 tons |
| Processing temperature | > 5°C on a dry surface |
| Processing time at 20°C | Unlimited |
| Load capacity at 20°C | Walkable after 3 hours, drivable after 3 days |
| Delivery method | 25 kg PCR bucket |
| Shelf life | 24 months in original packaging, store in a dry place and protect from direct sunlight |
| Hardness | Approx. 60 A (according to Shore, DIN 53505) |
| Flexural strength | Approx. 5 N/mm² |
| Static modulus of elasticity | Approx. 2000 N/mm² |
| Density of hardened mortar | Approx. 1.6–1.7 kg/dm³ |
| Water permeability | 10⁻⁵ to 10⁻⁶ m/s (at 10% void volume, approx. 5 l/m²/min, depending on compaction) |
For private terraces, pedestrian zones and public roads: the A-Joint® range offers a stable, water-permeable joint for every application.
