traditional masonry mortar

N3  kielnia N3 kielnia
P1  na ściany P1 na ściany
P3  do wewnątrz P3 do wewnątrz
P4  na zewnątrz P4 na zewnątrz
W1  mrozoodporność W1 mrozoodporność
W2  wodoodporność W2 wodoodporność
D62 grubość w murze 6-40mm D62 grubość w murze 6-40mm

Product description

Recommended for bricklaying with traditional, wide joints – allows to correct measurement imprecision of wall elements.
For building above ground floors, cellar walls and foundations – in reinforced and not reinforced elements subject to construction requirements.

Main properties

  • for ceramic, concrete and silicate elements
  • for joints 6 - 40 mm wide
  • high plasticity
  • compressive strength – M5 category
  • joins the elements into a stable, durable wall

Main parameters

  • consumption: from 34 kg/ m2 of wall 1/2 brick thick
  • joint thickness: 6 - 40 mm
  • compressive strength: ≥ 5.0 N/mm²


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Recommended for bricklaying with traditional, wide joints – allows to correct measurement imprecision of wall elements.

For building above ground floors, cellar walls and foundations – in reinforced and not reinforced elements subject to construction requirements.

Joins the elements into a stable and durable wall – is a soft and resilient framework in which rigid elements like bricks, stones and blocks are embedded.

Protects individual elements of the wall against damage – bricks, blocks, hollow bricks – is a buffer limiting the effect of strain connected with the load from consecutive wall layers and changes in ambient temperature and humidity.

Types of joined elements – bricks, hollow brick and other similar ceramic, limesand and concrete materials.


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Compressive strength – M5 category.

Factory made – guarantees uniform working parameters of the mortar and technological parameters of the joints after setting.

Easy and comfortable to use – characterized by very good workability, plasticity and high adhesion.

Extended pot life – ca. 4 hours.

The mortar can be supplemented with so-called anti-frost additives allowing to carry out works at lowered temperatures, i.e. below +5°C – the new temperature range of mortar application, the way of its preparation (especially the adjustment of the amount of water added), principles of carrying out works and the mortar setting conditions must be accepted according to the guidelines of the manufacturer of the additive. The amount of the anti-frost agent depends on the content of cement in the mortar – the proportion of cement to fillers in ATLAS MASONRY MORTAR is at 1:3. Note. The manufacturer of the mortar is in no way responsible for the effects and the quality of the anti-frost agents used.


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ATLAS MASONRY MORTAR is manufactured in the form of dry mix of cement binder, quartz fillers and improvers of the highest quality.

Bulk density (of dry mix)
ca. 1.5 kg/dm³
Wet density (after mixing)
ca. 2.0 kg/dm³
Dry density (after setting)
ca. 2.0 kg/dm³
Mixing proportions
(water/dry mix)
0.12 ÷ 0.14 l/1 kg
3.0 ÷ 3.50 l/25 kg
Min./max. layer thickness
6 mm / 40 mm
Mortar preparation temperature,
substrate and ambient temperature
during work
from +5°C to +30°C
Maturing time
ca. 5 minutes
Pot life
ca. 4 hours


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The product conforms to PN-EN 998-2 standard. EC Declaration of Performance No. 007/CPR.

CE 1488
PN-EN 998-2:2012
(EN 998-2:2010)
Factory-made masonry mortar,
according to design,
general purpose(G)

for indoor and outdoor use, in

elements subject to structural

requirements designed for reinforced

and un-reinforced walls, masonry walls,

posts and partition walls

Compressive strength
≥ 5.0 N/mm²
Initial shear strength
(tabular value)
≥ 0.15 N/mm²
Chloride content
0.07% Cl
Reaction to fire - class
Water absorption
0.05 kg/m² ∙min0,5
Water vapour permeability
coefficient (tabular value)
μ 15/35
(EN 1748:2002, table A.12)
Thermal conductivity coefficient
(average tabular value P=50%)
0.83 W/mK (λ10, dry)
(EN 1748:2002, table A.12)

Durability. Compressive strength decrease

after 25 freeze-thaw cycles
≤ 10%
Durability. Mass decrement
after 25 freeze-thaw cycles
≤ 3%
Release/content of hazardous
See: Material Safety Data Sheet

The product has been given the ITB Certificate of Conformity No. 1488 CPD-0013/Z and the Radiation Hygiene Certificate.


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Preparation of construction elements

Bricks, hollow bricks, or blocks must be clean, free from dust and dry. During storage, protect against rain and excessive heating.

Weather conditions

Prior to works commencement, account both for the weather conditions at which the works will be carried out and conditions at which the setting and drying process will take place.

Mortar preparation

Pour the mortar from the bag into a clean container with the suitable amount of water (see Technical Data for proportions) and mix using a drill with a mixer (or in cement mixer) until homogenous. The mortar is ready to use directly after mixing and should be used up within ca. 4 hours.

Mortar application

The method of application should be in accordance with the masonry work technology with the use of cement mortars. Apply the mortar with a trowel evenly on a horizontal plane of the previously executed layer. Horizontal and vertical joints should be completely filled in with the mortar (unless another method of joining the given type of elements is provided for, e.g. tongue and groove joint). Leave an empty joint (5÷10 mm deep) at external fronts of walls to be plastered. Joint thickness should be even for the whole layer and should be from 6 to 40 mm.


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Wall thickness
(full brick)
Consumption of
dry mortar at joint
thickness of ca. 1 cm
From a 25 kg bag
1/2 b
ca. 40 kg/m²
ca. 0.63 m²
1 b
ca. 100 kg/m²
ca. 0.25 m²


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• Adjust the ratio of added water experimentally, following the desired consistency of the mortar, type of substrate and weather conditions. Inappropriate amount of water for mix preparation results in deterioration of strength parameters of the mortar.

• Tools must be cleaned with clean water directly after use. Difficult to remove residues of the set mortar can be removed with the ATLAS SZOP agent.

• Irritant - contains cement. Irritating to respiratory system and skin. Risk of serious damage to eyes. May cause sensitisation by skin contact. Due to its form - powder, the product may cause mechanical irritation of eyes and respiratory system. Keep out of reach of children. Do not breathe dust. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing, gloves and eye/face protection. If swallowed, seek medical advice immediately and show the container or label. Follow the instructions in the Material Safety Data Sheet.

• Content of soluble chromium (VI) in ready-to-use mix - ≤ 0.0002%.


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The mortar must be transported and stored in tightly sealed bags, in dry conditions (most preferably on pallets). Protect against humidity. Shelf life in conditions as specified is 12 months from the production date shown on the packaging.


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Paper bags: 25 kg
Pallet: 1050 kg in 25 kg bags


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The above information constitutes basic guidelines for the application of the product and does not release the user from the obligation of carrying out works according to engineering principles and OHS regulations.

At the time of publication of this product data sheet all previous ones become void.
Date of update: 2014-03-31