Tector Natural Liso
Tector Natural Liso is a fine lime finishing render manufactured by Lafarge for use as the final coat within the Tector Natural render system. Formulated using Natural Hydraulic Lime (NHL 2), selected fine aggregates, marble powder, and mineral additives, it provides a smooth, breathable finish suitable for both traditional and contemporary masonry.
Designed as a finishing coat over Tector Natural Base, it delivers a refined appearance while maintaining the vapour permeability required for breathable wall construction. Suitable for both internal and external applications, it is widely used on heritage buildings, solid-wall construction, and breathable render systems.
Technical Data
| Property | Value |
|---|---|
| Product Type | Fine Lime Finish Render |
| Binder | Natural Hydraulic Lime (NHL 2) |
| Aggregate Size | < 0.6 mm |
| Colour Options | Heritage White / Warm White |
| Application | Internal & External |
| Application Method | Manual or Mechanical |
| Recommended Thickness | 2–3 mm |
| Water Vapour Diffusion Coefficient | μ < 8 |
| Density | Approx. 1700 kg/m³ |
| Packaging | 25kg Paper Bags |
Key Benefits
Fine Smooth Finish
The fine aggregate grading and marble powder content allow a smooth, uniform finish suitable for both traditional and contemporary render projects.
Breathable & Vapour Open
Maintains vapour permeability throughout the render system, allowing moisture to evaporate naturally from the wall structure.
Designed for Tector Render Systems
Specifically developed as the finishing coat over Tector Natural Base to create a complete breathable lime render system.
Suitable for Internal & External Use
Can be applied internally or externally on suitable mineral backgrounds and lime render systems.
Natural Mineral Finish
Produces a durable mineral finish without relying on acrylics, synthetic resins, or cement-rich coatings.
Typical Applications
- Finish coat over Tector Natural Base
- External lime render systems
- Internal lime render systems
- Heritage restoration
- Conservation projects
- Traditional stone buildings
- Breathable solid-wall construction
- New-build lime render systems
Why Use Tector Natural Liso?
Tector Natural Liso is designed for projects requiring a finer finish than can be achieved with standard base renders. Its fine aggregate grading and NHL 2 binder provide a smooth appearance while maintaining the breathability and compatibility required for traditional masonry.
When combined with Tector Natural Base, it forms a complete lime render system suitable for both restoration and new-build applications.
Typical Coverage
| Thickness | Coverage per 25kg Bag |
|---|---|
| 2 mm | Approx. 6–7 m² |
| 3 mm | Approx. 4–5 m² |
Installation Overview
1. Surface Preparation
Apply only onto suitably cured and prepared Tector Natural Base or compatible mineral backgrounds.
2. Application
Apply in a thin finishing coat at approximately 2–3mm thickness.
3. Finishing
Can be sponge finished, floated, or lightly polished depending on the desired appearance.
4. Protection & Curing
Protect fresh render from:
- Frost
- Heavy rain
- Rapid drying
- Strong sunlight
- Wind
during curing.
5. Storage
Store dry and protected from moisture prior to use.
