Work in Norway

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Interior walls gypsum mixes

MP-75 MP-75L MP-75 DIAMANT MP-75 DIAMANT MP-75 DIAMANT
MP-75 MP-75L MP-75 Diamant Multi-Finish M MP-75 F
"Plastering using the MP-75L mix"

Light dry plaster mix with special perlite additives which make the plaster lighter. Plastering is carried out using the German PFT-G5 equipment.

Note: Knauf MP-75L has all the advantages of the MP-75 mix as well as the following additional ones:

  1. Better water vapor diffusion;
  2. More elastic;
  3. More cost-effective
  4. Guarantees quicker work;
  5. Lighter (due to the larger number of perlite additives);
  6. Lesser output, therefore, less expenditure. 

 

 

Comparison of technical specifications

 

Material
MP-75 (plaster)
MP-75L (plaster)
MP-75 Diamant (plaster)
KZ Maschinenputz (lime mortar)
Common Lithuanian lime plaster mortar
Flexural strength in tension
>1,0N/mm2
>1,0N/mm2
>2,5N/mm2
>1,7N/mm2
>1,5N/mm2
Compressive strength
>2,5N/mm2
>2,0N/mm2
>6N/mm2
>3,0N/mm2
>3,0N/mm2
Water vapor diffusion resistance factor
8
5
8
16
20
Thermal conductivity capacity
0,35W/mk
0,26W/mk
0,47W/mk
0,45W/mk
0,9W/mk
Consumption of material for 1 m2 when the thickness of the plaster layer is 1 cm
10,5 kg
8 kg.
12 kg.
15 kg.
16 kg.

Useful tips

In winter, the amount of water vapor in the air indoors is greater than outdoors. Due to the difference in pressure, the warmer water vapor tries to move from the inside to the outside. This is called water vapor diffusion, or, in spoken language, “plaster breathing”. Depending on the plaster mix used, the diffusing water vapor meets certain resistance (μ). The greater the water vapor diffusion resistance factor, the slower the water vapor diffusion through the material.

Thermal conductivity is the capacity of the material to transfer heat, i.e. the thermal insulation of the material. This feature is described by the thermal conductivity coefficient λ (expressed in W/mK). The lower the λ value, the better the insulating properties of the material. It must be noted that MP-75L gypsum plaster has excellent thermal conductivity properties (0.26 W/mK). Thus, the smaller the coefficient λ, the smaller the heat loss.


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