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Wintermix Mortar and Render - Natural Hydraulic Lime Mortar

Name: Wintermix Mortar and Render - Natural Hydraulic Lime Mortar
Brand: Cornerstone
SKU: GvucrrETYEvFqk3ik73b2

Verified by manufacturer 4 days ago

Cornerstone

A dry ready mixed natural hydraulic lime mortar for building, rendering and plastering.

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+44 (0)800 7839014 Website

Application

Suitable for building, pointing and coarse render coats.
Suitable for applications in construction where binder strength is appropriate for the host background or surface.

Description

Factory blended mortar using graded kiln dried sand and St. Astier natural hydraulic lime, combined with carefully selected additives to improve the mortars physical and mechanical properties, whilst maintaining all of the virtues of a pure natural hydraulic lime mortar.

Features and benefits:

Quality controlled production and product consistency.
Improved workability of mortar, extended working and finishing time and reduced risk of shrinkage.
Increased water retention for improved cure.
Less risk associated with winter working with binders not typically used in cold weather.

General information

Color	Yellow
Finish	Textured
Material	Hydraulic lime Sand
Shape	Formless
Length	Bespoke
Width	Bespoke
Height	Bespoke
Material	Hydraulic lime Sand

Uniclass	Pr_20_31_53_39 Hydraulic lime mortarsPrimary Pr_35_31_64_48 Lime renders
CAWS	M20/57 Lime:sand M20/310 Lime:sand M20/330 Proprietary lime:sand Z21/310 Lime:sand mortar mixes Z21/310 Lime:sand mortar mixes

Specification data - Hydraulic lime mortars

Mortar type	Batched dry naturally hydraulic:lime:sand.
Mix	NHL 3.5. Guidance for specification option: St Astier NHL 3.5 gauged with a small quantity of pozzolan. Due to the small gauging of pozzolan it is advised that this product should be treated more like an NHL5 strength mortar.
Colour	Natural buff.

Aggregate	5 mm down tan flint sharp sand. Other. Guidance for specification option: Other sands available on request. Consult manufacturer and insert requirements.
Density	To EN 1015-6, 1975 kg/m³. Manufacturer guidance Fresh mortar density.
Dry density	To EN 1015-10, 1770 kg/m³.
Water absorption	To EN 1015-18, 1.0 kg (m².min⁰⁵). Guidance for specification option: All samples ended test appearing saturated. Manufacturer guidance Water absorption of set and hardened mortar.
Typical compressive strength	To EN 1015-11, 6.00 MPa (at 28 days); 8.91 MPa (at 6 months). Manufacturer guidance Please note figures given are mean measurements and do not constitute a guarantee of minimum figures achieved.
Flexural strength	To EN 1015-11, 0.42 MPa (at 28 days). Manufacturer guidance Please note figures given are mean measurements and do not constitute a guarantee of minimum figures achieved.
Adhesive bond	To EN 1015-12, 0.2 N mm^². Guidance for specification option: Fracture pattern B. Manufacturer guidance Please note figures given are mean measurements and do not constitute a guarantee of minimum figures achieved.
Vapour Permeability	To EN 1015-19, 0.62 g/h.m².mmHg.
Reaction to fire classification	Class A1.