NBS Source
SMET NHL 2

Application

Suitable for interior and exterior use on weak structures.

Particularly suited for ecological new build, restoration and preservation works.

Description

SMET NHL 2 is a high quality, pure white, natural hydraulic lime binder, produced under an ISO 9001 and ISO 14001 quality system to BS EN 459-1. The feeble hydraulic strength development of SMET NHL 2 makes it suitable for producing lime mortars for masonry work, rendering, plastering base coats and finish coats. The product’s special composition allows the mortar product to breathe and also permits constant hygrometric exchange between the substrate and the environment.


Features and benefits:

  • Historical, gypsum and cement-free NHL.
  • Produces highly breathable mortars.
  • Highly sulfate resistant.
  • Low-stress hardening process.
  • Excellent subsequent hardening.
  • High water retention and elasticity in produced mortars.
  • Excellent bond properties to masonry.
  • Whiteness: 70 Y.
  • Fineness at 90 μ: 2.3%.
  • Fineness at 200 μ: 0.4%.
  • Blaine value: 12 900 cm²/g.
  • Free lime content: Approx. 42.11%.
  • SO3: Approx. 1.38%.
  • EN 459-1.
  • CE marked.

General information

Color

White

Uniclass 2015

Pr_20_31_12_39 Hydraulic limesPrimary

CAWS

M20/310 Lime:sand

M20/320 Lime:sand roughcast (harling)

Product range

Natural Hydraulic Lime

Specification data - Hydraulic limes Enhanced data

Type of hydraulic lime

Natural hydraulic lime.

Standard

To BS EN 459-1.

Designation

NHL 2.

Mechanical strength

28 days

4.99 MPa (approximately).

Expansion

0 mm.

Density

Bulk: 0.595 g/cm³; Real: 2.64 g/cm³.

Water

Water content: 1.01%; Free water content: 1.01%.

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