Block mortar M100/500

Product description

Fescon Block Mortar M 100/500 is a masonry cement based dry mortar. The maximum grain size is 3.0 mm.


  • Easy to use
  • Good workability characteristics
  • Frost-resistant


  • Lightweight aggregate and concrete block masonry
The product is suitable for use on sites with a Nordic Swan Ecolabel.

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EAN code Product name Product number Package size
6416841530493 BLOCK MORTAR M100/500 53049 25 kg
6416841330499 BLOCK MORTAR M100/500 33049 1000 kg



Refer to the bag for how much water the plaster requires. Add the dry material to the water and mix with a concrete mixer for around ten minutes. With a power mixer or a drill paddle, around two to three minutes of mixing is sufficient. Allow the plaster to stand for around ten minutes and mix it again for a short while. Find the correct consistency at this stage by gradually adding the rest of the water. We do not recommend adding all of the water right at the start. The finished plaster remains workable for around three hours.

Work instructions

The lowest working temperature is +5°C. The temperature of the stones must be above 0°C. When the temperature is below +5°C, use Fescon winter plaster for the masonry work. Follow the instructions of the designers and official regulations in masonry work. National Building Code of Finland B8, Brick Structures. Instructions 2007. SFS handbook 176.

Waste handling

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

Technical information

Material usage

approx. 4 kg / H75-UH150
approx. 7 kg/UH 200 - RUH 380

Water requirement 2.7-3.3 l/25 kg
Finished compound 13 - 14 l / 25 kg bag
Type powder
Colour grey
Maximum grain size

3 mm

Package size 25 kg, 500 kg and 1000 kg

storage time in a dry location approx. 1 year

Lowest usage temperature

+ 5°C

Workability time 3 h
Strength class M 10
Nominal shear resistance

> 0.16 N/mm2 (avg)

Fire class A1
Chloride content < 0,01 %
Frost resistance Yes

The information is based on tests and practical experience. We cannot affect conditions at the work site so we cannot assume responsibility for the end result affected by local conditions.


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