Mortar for tongue and groove blocks PHL Winter

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Product description

Fescon Mortar for tongue and grove blocks Winter is a dry mortar for the winter-time thin-jointing of lightweight aggregate blocks. The maximum grain size is 1.2 mm. Fescon Stone Adhesive is used for the thin-jointing of sand-lime bricks. Working temperature -15°C...+5°C. 

  • Easy to use
  • Good workability characteristics
  • Frost-resistant
  • Low water absorption capacity


  • For thin-joint masonry in the temperature range -15°C...+5°C.
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
6416841330246 MORTAR FOR TONGUE AND GROOVE BLOCKS PHL WINTER 1000 KG 33024 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. 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 one hour.

Work instructions

Designed for thin-joint 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 B5 and National Building Code of Finland B8, and RYL 2000 instructions.

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

0.5 kg/H-75

1.5 kg/UH-100…UH-150

2.5 kg/RUH-200…RUH-380

Water requirement 3.5-4.5 l/25 kg
Finished compound 13 - 14 l / 25 kg bag
Type powder
Colour gray
Maximum grain size

1.2 mm

Package size 25 kg, 1000 kg

storage time in a dry location approx. 1 year

Lowest usage temperature


Workability time 1 h
Strength class M 10
Nominal shear resistance

> 0.354 N/mm 2

Reaction to fire A1
Heat conductivity 0.83 W/mK
Frost resistance yes
Water vapour permeability

µ 15/35

Limitation of liability, product use notes and restrictions: Please familiarize yourself with Fescon Oy's general terms of delivery and the design and work instructions related to the product.