Natural Lime Mortar - Medium Strength 25Kg Off-White (020-Chalk)

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Availability: In stock


Quick Overview

Natural Lime Mortar Medium Strength is a convenient and cost effective premixed product made from natural hydraulic lime and sand. To be used for general solid masonry, dense masonry, parapets and lintels re-pointing and laying stone, brick, and block Available pre-packed in 25kg paper sacks for smaller jobs.

Can be delivered in sealed 1000kg bulk bags  please call for bulk pricing and delivery

Price is per 25Kg Bag

Natural Lime Mortar - Medium Strength 25Kg Off-White (020-Chalk)

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Natural Lime Mortar is blended with < 3mm sand asaggregate. Other aggregate sizes are available on request.


Repointing: 20kg/m² stonework; 7kg/m² brickwork. One tonne of mortar will lay approximately 900-1200 bricks.

Guidance on mortar choice

General solid masonry Dense masonry, parapets and lintels use "Medium strength mortar"

Above roofline, below DPC incl. copings and cappings, Earth retaining walls use "Strong strength mortar"

Mortar application

Natural Lime Mortar type

General solid masonry, dense masonry, parapets and lintels

Medium mortar

Made with NH3.5 lime

Above roofline, below DPC incl. copings and cappings

Earth retaining walls

Strong mortar

Made with NHL5 lime

The correct specification for any mortar should consider the structural requirements, nature and condition of the background, site exposure, time of the year and type of finish required. Less porous masonry units and harsh climates require greater mortar strength.


Add only 4 to 5 litres of clean water per bag Pour the water in slowly as the product mixes, using just enough to achieve the correct workability. Mix for 3 to 10 min. mortars may be reworked up to 8hrs. 


Before pointing or building clean and remove all dust and loose material from joints and masonry, and adequately dampen dry or high suction surfaces. Do not use in temperatures less than 5 ºC or over 30ºC



Test Category

Our standard stock colour is Chalk 20 as below - we always have this in stock.


Additional colours are shown in the chart below.Colours are indicative only, samples can be provided, please call to request.

Ecomerchant lime mortar colours

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