SMET NHL 3.5
SMET NHL 3.5 is a high-quality, pure Natural Hydraulic Lime binder, produced under ISO 9001 and ISO 140014 management systems to EN 459-1. The moderate hydraulic strength development of SMET NHL 3.5 makes it suitable for producing lime mortars for cement-free masonry work, rendering, plastering base coats and limecrete.
As a moderately hydraulic lime binder for the production of lime mortars, lime rendering and lime plaster, it is particularly suited for ecological new builds, restoration, and preservation work. The product’s special composition allows the mortar product to breathe and also permits constant hygrometric exchange between the substrate and the environment.
Related Downloads
EPD_SMET NHL 3.5_SOCLI_valid until 08.07.31
SMET and Haldane Fisher NHL Brochure
Benefits of SMET NHL 3.5 Binder
• Historical, gypsum, and cement-free SMET NHL
• Produces highly breathable mortars
• Highly sulphate-resistant
• Low-stress hardening process
• Excellent subsequent hardening
• High water retention and elasticity in produced mortars
• Excellent bond properties to masonry
• EN 459-1
Enjoy our Think Lime, Think SMET video:
Production Of Mortars For Masonry
Production Of Mortars For Rendering
SMET NHL 3.5 delivery direct to site | SMET lime mortar | lime plaster | lime binder | cement-free lime mortar
Technical Details for SMET NHL 3.5 Binder
| Unit | Average values | Conformity to Standard | ||
| Physical Properties | Mini | Maxi | ||
| Fineness at 90 µ | % | 4.6 | – | 15 |
| Fineness at 200 µ | % | 1.0 | – | 2 |
| Expansion Expansion (soundness) | mm | 0.2 | – | 2 |
| Bulk density | kg/dm | 0.769 | – | – |
| Real density | g/cm3 | 2.75 | – | – |
| Blaine value | cm²/g | 8280 | – | – |
| Water content | % | 0.42 | – | 2 |
| Mechanical Properties | ||||
| Beginning of set | min | 259 | 60 | – |
| End of set | min | 398 | – | 1800 |
| Mechanical strength at 28 days | MPa | 5.33 | 3.5 | 10 |
| Chemical Properties | ||||
| SO3 | % | 1.38 | – | 2 |
| Free lime content | % | 2702 | 25 | – |
Attention
SMET NHL 3.5 must be mixed with clean, well-graded sands and clean water without additives. Do not mix or apply if the temperature is below +5ºC or over 30ºC. This product must not be mixed with gypsum or be applied to gypsum-based backgrounds. Avoid over-mixing, as this can adversely affect performance and strength. Material that has set must not be re-mixed. For interior applications, care must be taken when using heating systems. High or rapidly changing temperatures may affect the hydraulic setting reaction of the mortar/render and cause cracking and/or adhesion problems. Delay the implementation of heating systems for as long as possible and heat up interiors gradually. Other unfavourable conditions, such as overly wet backgrounds, low background temperatures, and low air temperatures, can delay setting. During and after application, protect the mortar/render from adverse weather conditions, such as direct sunlight, strong winds, rain, and frost.
Related Projects
Packaging: Available in 25 kg bags.
Also available in designations: SMET NHL 2 and SMET NHL 5
Check out SMET’s full range of lime-based products now available directly from Smet Building Products Ltd. Call SMET to purchase directly: Tel UK: +44 (0) 28 3026 6833 or ROI: +353 (0) 1697 8586
OR BUY SMET NHL 3.5 directly from Haldane Fisher Nationwide: SMET NHL binders that make cement-free lime mortar are available online or in-store via our distribution partner Haldane Fisher.
TO PURCHASE VIA OUR NATIONWIDE PARTNER HALDANE FISHER – SCAN THIS QR CODE:
SMET NHL binders are available online or in-store via our distribution partner Haldane Fisher | scan QR