Consumption:
750-800 kg/m³
Technical Properties
- Due to its low content of water-soluble salts and exceptional porosity, NHL3.5 is particularly suitable for products intended for the restoration of historical and architectural buildings, as well as for ecological construction preparation.
- This binder is ideal for the production of masonry mortars, plasters, and natural or pigmented finishing layers.
| IDENTIFICATION DATA | |
|---|---|
| Physical state | solid powder |
| Bulk density | about 750–800 kg/m³ |
| Free lime | 27% |
| SO₃ content | < 0.2% |
| Packaging | 25 kg bag |
| USAGE DATA | |
|---|---|
| Setting time | initial 5–6 hours, final 10–12 hours |
| FINAL CHARACTERISTICS | |
|---|---|
| Mechanical strength after 7 days | ≥ 1.0 N/mm² |
| Mechanical strength after 28 days | ≥ 3.5 N/mm² |
| Mechanical strength after 56 days | ≥ 5.0 N/mm² |
| Fineness (residue on 0.2 mm sieve) | < 0.2% |
| Fineness (residue on 0.09 mm sieve) | < 1% |
| Stability | < 1 mm |
| CHEMICAL ANALYSIS: X-ray fluorescence analysis (XRF) | |
|---|---|
| CaO | 75.87% |
| SiO₂ | 15.04% |
| Al₂O₃ | 3.37% |
| Fe₂O₃ | 2.98% |
| MgO | 1.17% |
| K₂O | 0.89% |
| SO₃ | 0.13% |
NHL3.5 must be mixed with washed sand (e.g., Rhine or Moselle river sand), selecting the appropriate particle size distribution depending on the intended use. Mix only with clean water, in the ratio: 1 part lime to 3 parts sand by weight (about 400–450 kg of lime per m³ of aggregates). Before application, it is recommended to let the mixture stand for a few minutes.
Mixtures should be prepared on-site and trial applications should be performed, as the variety of aggregates available on the market does not allow for standardized dosages. To maintain the purity of the product, no other hydraulic binders or cement should be added to NHL3.5.
Plasters made using NHL3.5 natural limes are very porous, so materials with similar permeability, such as MONTE 06 and/or MONTE 12, should be used for their finishing.
Designed for preparing masonry mortars, plasters, leveling layers, and decorative finishes on construction sites.
Usage temperature: from +5 °C to +30 °C (of the substrate and environment).
VARIOUS INFORMATION
- Product resistance to cold, heat, and moisture. Always store the product in a dry, frost-protected place, away from the ground, in its original, closed packaging. Never leave products in direct sunlight.
- This product is intended for professional use only. Properly protect areas that should not be covered with this product. The operator must have equipment that complies with current safety regulations. We accept no responsibility for damage caused by improper use of the product.
- Strictly follow usage protocols according to the intended purpose of the product.
- Never use other products than those specified in this technical data sheet to avoid any risk of incompatibility or failure.
- For the same project and product type, always use materials from the same batch (with the same batch number).
- Ensure that you only use original, unopened bags.
- Always conduct preliminary tests. In case of doubts, contact us.
- Environment: Dispose of waste at a specialized collection center.
- Safety: Contains lime, silicates, and additives. Do not inhale dust while mixing. Protect your skin and eyes; wear gloves. If the product comes into contact with your skin or eyes, rinse immediately with plenty of clean water and consult a medical specialist.