Compact mortar M100/600

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Product description

Fescon Compact mortar M100/600 is a cement-based mortar for burnt and sand-lime brick masonry for facades exposed to harsh weather conditions. Suitable for locations subject to heavy slanted rain. Suitable for repointing brickwork and natural and slate stones on vertical surfaces, and for repairing mortar joints. Contains additives to improve density, weather resistance and workability. 

  • For the masonry of facades exposed to harsh weather conditions
  • Low water absorption value
  • Reduces the water permeability of the cavity wall
  • Compressive strength M 5
  • Available in 20 standard colours. Colored products are custom-made products, see delivery terms and conditions
  • Special colours can be tinted to match the project requirements


  • For work jointing and jointing of natural and slate stones on vertical surfaces
  • For repairing existing mortar joints
  • For repointing of brickwork
  • Facade masonry in locations subjected to heavy slanted rain
The product is listed in the portal for building products that can be used in Nordic Swan Ecolabelled buildings.
GTIN code Product name Product number Package size
6416841331007 COMPACT MORTAR M 100/600 33100 1000 kg
6416841331335 COMPACT MORTAR 39 QUARTZ WHITE 33133 1000 kg
6416841331014 COMPACT MORTAR 59 BIRCH BARK WHITE 33101 1000 kg
6416841331045 COMPACT MORTAR 40 LIME GREY 33104 1000 kg
6416841331038 COMPACT MORTAR 41 GRAIN YELLOW 33103 1000 kg
6416841344250 COMPACT MORTAR 42 BRICK RED 34425 1000 kg
6416841331052 COMPACT MORTAR 45 EARTH BROWN 33105 1000 kg
6416841331069 COMPACT MORTAR 46 PEAT BROWN 33106 1000 kg
6416841331076 COMPACT MORTAR 48 BLACK GREY 33107 1000 kg
6416841344274 COMPACT MORTAR 52 LINEN LIGHT 1000 KG 34427 1000 kg
6416841344182 COMPACT MORTAR 44 SAND BROWN 34418 1000 kg
6416841344137 COMPACT MORTAR 71 SWAN 34413 1000 kg
6416841344168 COMPACT MORTAR 72 BELOW 1000 KG 34416 1000 kg
6416841344083 COMPACT MORTAR 73 CUCKOO 34408 1000 kg
6416841344144 COMPACT MORTAR 74 HAWK 1000 KG 34414 1000 kg
6416841344113 COMPACT MORTAR 75 LARK 34411 1000 kg
6416841344120 COMPACT MORTAR 77 JACKDAW 34412 1000 kg
6416841344106 COMPACT MORTAR 79 PTARMIGAN 34410 1000 kg
6416841344243 COMPACT MORTAR 80 SIBERIAN JAY 34424 1000 kg
6416841344298 COMPACT MORTAR 81 TEAL 34429 1000 kg
6416841344151 COMPACT MORTAR 82 CAPERCAILLIE 34415 1000 kg
6416841344229 COMPACT MORTAR 83 WILLOW GROUSE 34422 1000 kg
6416841344199 COMPACT MORTAR 85 RAVEN 34419 1000 kg
6416841344236 COMPACT MORTAR 86 HAZEL HEN 1000 KG 34423 1000 kg
  • The temperature of the masonry brick or structure is above > 0°C
  • Brick, natural stone, slate
  • Brick pallets are protected from rain. The bricks must not be wet or covered with snow or ice.
  • Masonry structures are not primed
Mixing and application of the product
  • Masonry work should not be carried out in direct sunlight, in the rain or during strong winds.
  • The working temperature should be between +5°C and +25°C.
  • A bag (25 kg) of dry powder is mixed with 2.9 to 3.8 litres of clean water. 
  • Do not add all the water at first. The mixture contains the correct amount of water when the mortar holds its shape and no water rises to the surface.
  • The amount of water must be as instructed in the product card. Deviating from the recommended amount of water lowers the mortar’s strength properties, increases the risk of separation, affects the strength development and reduces workability. 
  • Product is mixed with a mortar stirrer, in a concrete mixer, or with a pan-mixer or a continuous mixer to a smooth consistency. The maximum mixing time is approx. 10 minutes.
  • If the working conditions are very dry or warm, it is possible to improve the adhesion by dampening the masonry joints or bricks. There should not be water drops on the substrate.  
  • Keep the amount of water the same during jointing, because any variations in the amount of water will show as colour differences in the joint.
  • The jointing technique affects the density of the mortar joint. Finish the jointing by sealing them with a brick jointer and removing any excess mortar from the brickwork by brushing diagonally over the joints with a masonry brush.
  • The expansion joints are provided as defined in the structural plans.
  • The working time of the compact mortar is about 3 hours. 
  • When finished working, wash the tools immediately with water.
  • Remove any dried mortar mechanically.
  • After casting you should keep the mortar joints moist by fog spraying for about 3 days depending on the conditions or the target.
Repointing to a previously masonry joint
  • Available in 20 standard colours. Special colours are subject to order.
  • When repointing, the old mortar must first be removed to a depth of at least 20 mm, but no more than 15% of the masonry depth or according to the designer’s instructions. 
  • The joint is cleaned of dust and dampened.
  • When repointing, add the dry powder to the instructed amount of water and let it stand for about 10 minutes. After that, remix the paste and add masonry mortar to make the paste semi-dry. This mixing method ensures the sufficient air content of the mortar.
  • When repointing, start first with vertical joints and after that work with the horizontal ones. Repoints that are over 20 mm are done in two phases.
  • The working time of a semi-dry mortar for repointing is 1 to 2 hours.
  • After casting you should keep the mortar joints moist by fog spraying for about 3 days depending on the conditions or the target.
  • Bases or masonry units with low water absorption are repointed with Repairing plaster KL 1.2 or Facade coating JSP 1.5.
Other points to note
  • Construction planner instructions and official regulations are to be followed in all masonry work.
  • Not suitable for masonry of the inner shells of fireplaces or wood-burning stoves nor masonry of chimney flues indoors.
  • Masonry mortars may have slight differences in shade between small and big bags, as well as between the mortars intended for winter and summer time masonry, so it is not advisable to change the type of mortar in the middle of the wall.
  • Meets the requirements of Annex 4 of the national standard SFS 7001.

Storage and handling of waste
See the separate storage and disposal instructions

Water requirement 2.9 - 3.8 l/25 kg
Type powder
Binder cement
Colour available in 20 standard colours, special colours subject to order
Maximum grain size

2.0 mm

Package size 1000 kg

storage time in a dry location approx. 1 year


additives that improve density, weather resistance and workability

Usage temperature


Workability time 3 h
Compressive strength

M 5

Adhesion strength

≥0.16 N/mm2 (SFS-EN 998-2, 5.4.2 a)

Reaction to fire A1
Heat conductivity 0.82 [w/(m•K)], P=50%
Chloride content < 0.1 % (EN 998-2:2016)
Frost resistance yes
Water absorption by capillarity

0.05 kg/(m2 · min0,5) (EN1015-18)