Permeable, wear-resistant decorative paving system. The binder locks natural colored gravel into a stable, rain-permeable surface for landscape and municipal projects.
Model NC-BG300 · Two-component PU-modified binder for bound aggregate · A: PU resin binder, B: curing agent — mixed with washed natural gravel
Technical data
| Binder Solid Content | ≥ 99% (solvent-free) |
| Mix Ratio (A:B) | 10 : 2 by weight |
| Binder : Aggregate | 1 : 12–15 by weight * |
| Coverage (system) | 25–35 kg/m² at 25 mm thickness * |
| Pot Life (25 °C) | 30–40 min |
| Foot Traffic | 24 h |
| Full Cure | 7 days |
| Compressive Strength (system) | ≥ 30 MPa |
| Permeability | ≥ 10⁻² cm/s (water-permeable) |
| Colors | Natural & dyed gravel: yellow / red / grey / black / white |
Indicative values for reference only — the formal TDS issued with your quotation governs. Values marked * have not yet been confirmed by the factory and must be verified before you specify or order.
Applications
- Garden paths & plazas
- Park walkways
- Tree pits
- Pool surroundings
- Courtyard paving
Suitable substrates
- Compact stable base (concrete / asphalt / compacted sub-base)
Packaging
- Binder: set A 20 kg + set B 4 kg
- Gravel: 25 kg woven bags
- Full container mixed loading supported
Application method
- Base: compact and level the sub-base; prime porous base with diluted binder.
- Mixing: combine A + B for 1 min, then add graded dry gravel; mix until every stone is coated.
- Laying: trowel to 15–30 mm thickness, seal edges and joints while wet.
- Curing: protect from rain and foot traffic for 24 h; full cure 7 days.
- Output: one crew lays 150–250 m² per day with our mixing kits.
Frequently asked
Is it really permeable?
Yes — the bound system leaves connected voids, rain drains through instead of ponding. Ideal for Sponge-City style landscape projects.
Can you supply the gravel too?
Yes. We ship binder and dyed/natural gravel together in mixed containers, so the system and colors arrive matched.
What tools do we need on site?
Forced-action mixer, trowels and a screed bar. We can quote a starter tool kit with your first order.
How does it handle freeze-thaw?
The PU binder stays flexible at low temperature; the permeable structure avoids trapped water, which is the main freeze-thaw failure cause.
Ask about this product
Send the quantity, application area and destination port — we reply within one working day with pricing, TDS and sample options. Request a quotation or write to [email protected].