Winter-time masonry mortar TML

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Product description

Fescon Winter-time Masonry Mortar is a masonry cement based dry mortar for winter-time masonry in the temperature range -15°C...+5°C. The maximum grain size is 3.0 mm. 

  • Easy to use
  • Good workability characteristics


  • Winter-time masonry with lightweight aggregate and concrete blocks, and burnt bricks
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
6416841530509 WINTER-TIME MASONRY MORTAR TML 53050 25 kg

Refer to the bag for how much water the plaster requires. Add the dry material to cold 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. Let the plaster stand for around five 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 30 minutes to one hour.

Work instructions

Block Mortar Winter is designed for masonry in the temperature range -15°C...+5°C. 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.

Other points to note 

Winter products will be available in the winter season, from 15 September to 1 March. At other times, the products must be ordered separately.

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

Material usage

approx. 4 kg / H75 - UH150
approx. 7 kg / UH200 - RUH380

Water requirement 2.5 - 3.0 l / 25 kg
Finished compound 13 - 14 l / 25 kg bag
Type powder
Colour gray
Maximum grain size

3 mm

Package size 25 kg

storage time in a dry location approx. 1 year

Usage temperature


Workability time 0.5 - 1 h
Compressive strength

M 10

Adhesion strength

≥0,16 N/mm2 (SFS-EN 998-2, 5.4.2 a)

Reaction to fire A1
Heat conductivity 0,72 [w/(m•K)], P=50%
Chloride content < 0.01 %
Water vapour permeability

µ 15/35

Water absorption by capillarity

0,15 kg/(m2 · min0,5) (EN1015-18)