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Saint-Astier® NHL 3.5 - Cement-Free Natural Hydraulic Lime

Verified by manufacturer 22 days ago

Saint-Astier® Third party certifications:
  • ISO 14025

    Certificate type

Cement-free, 100% pure natural hydraulic lime NHL 3.5 - LC****: versatile, workable, reliable, recommended when moderate strengths and better freeze-thaw resistance are required

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Application

Suitable for:

  • Masonry, consolidation, grouting.
  • Plastering, rending, pointing.
  • Decoration.

Description

Saint-Astier® NHL 3.5 - LC****, The Versatile Lime is suitable for a range of projects, including lathwork, lime concrete, injection, grouting, rendering, pointing, capping, bedding and ashlar. Harder set than NHL 2, appropriate for both external works in traditional buildings and sensitive heritage sites, as well as new builds.


Features and benefits:

  • Breathable, versatile, workable and reliable. Compatible with plaster. Designed to be resistant to sulphates and salts.
  • Preserves local sand colour.
  • Reworkable within 12 hours.
  • Available in 25 kg bags and 1 ton pallets (40 bags).


Application method.

  • Always test product on a small area before using.
  • Can be mixed with cement mixer. Application by spray gun possible.
  • Recommended working temperature between 8° C and 30° C.
  • Ensure high-suction substrates are thoroughly dampened before application. Avoid rapid drying due to high temperatures and strong winds by covering with hessian and curing with a light water mist as necessary. Re-seal open bags as soon as possible. 
  • Before repointing, ensure all dust and debris are removed by washing with a light water spray and the joints are dampened to the back of the joint.

For further mortar and render mix ratios and application guidelines, please contact SAINT-ASTIER®.

General information

Color

Other

Beige

Cream

White

Ivory

Finish

Natural

Material

Hydraulic lime

Shape

Formless

Length

Bespoke

Width

Bespoke

Height

Bespoke

Uniclass

Pr_20_31_12_39 Hydraulic limesPrimary

CAWS

F10/665 Pointing

Specification data - Hydraulic limes

Type of hydraulic lime

Natural hydraulic lime.

Standard

To BS EN 459-1.

Designation

NHL 3.5.

Constituents

Manufacturer's standard.

Guidance for specification option:

  • SO3: ≤2%.
  • Free lime: >28%.
  • Particle size: 90 µm: ≤15%; 200 µm: ≤2%.

Density

0.65 kg/L.

Compressive strength - 7 days

3 MPa.

Manufacturer guidance

Consult manufacturer's literature for further details.

Compressive strength - 28 days

7 MPa.

Manufacturer guidance

Consult manufacturer's literature for further details.

Technical characteristics, other

Manufacturer's standard.

Guidance for specification option:

  • Stability: ≤2 mm.
  • Initial setting time: 5–6 hours.
  • Whiteness index: 72.
  • Residue at 0.09 mm: 6.5%.
  • Quicklime residue after slaking: <1%.
  • Surface cover: 9000 cm² per gram.
  • Expansion: <1 mm.

Sustainability data

Contains Red List materials

No

Country of material origin

France

Material

Hydraulic lime

Embodied carbon

A1-A3 (production stage) as defined in BS EN 15804

458 kg CO₂ eq/unit

Self declared

Recyclability

yes

Third party certifications

ISO 14025

ISO 14025

LIFE CYCLE FOR LIME FOR RENDERS ON SITE WITH SAINT-ASTIER LIME NHL3,5

Literature

Saint-Astier® NHL 3.5 - LC**** Technical Data Sheet

Saint-Astier® NHL 3.5 - LC**** Technical Data Sheet

SAINT-ASTIER_lime_bedding_INSITU_MIX_Specs

SAINT-ASTIER_lime_bedding_INSITU_MIX_Specs

SAINT-ASTIER_lime_grouting_INSITU_MIX_Specs

SAINT-ASTIER_lime_grouting_INSITU_MIX_Specs

SAINT-ASTIER_lime_plastering_INSITU_MIX_Specs

SAINT-ASTIER_lime_plastering_INSITU_MIX_Specs

Saint-Astier Lime Pointing In Situ Mix Specs

Saint-Astier Lime Pointing In Situ Mix Specs

Saint-Astier Lime Rendering In Situ Mix Specs

Saint-Astier Lime Rendering In Situ Mix Specs