Megatech MTP-3344 Thermal Insulation Board Plaster

Cement-based surface plaster for thermal insulation boards. It is used for Stone Wool, EPS, XPS.

Application Area

In all structures, polystyrene boards are a plaster used on Stone Wool (XPS, EPS). 

It provides high performance thanks to polypropylene fibers against tensions that may occur on wall surfaces with crack risk.


Application Features

  • Usage time max. 90 minutes
  • Working time max. 20-30 minutes
  • Application thickness 4 mm
  • Applicable layer thickness max 2 mm
  • Waiting time between layers min. 3-4 hours
  • Time to wait for the top coat application: 7 days


Surface Preparation

  • The surfaces must be cleared of dust, dirt, oil, etc. that prevent adherence. It should be free from residues that would prevent adhension.
  • If there are defects on the application surface, they are corrected with repair/ repair mortar.
  • The surface should be cured and solid.
  • If the application surfaces are porous, it should be wetted.
  • Care must be taken to ensure that the application surface is in a solid carrier and also in its balance.


Application Conditions

  • Ambient temperature is between +5°C and +35°C.
  • Direct sun should not be applied under strong wind or on hot surfaces.


Warnings and Suggestions

  • Foreign materials must not be added.
  • All tools used should be washed with water before drying after the application.


Application Tools

Hand mixer, steel trowel, plastic trowel


Application

  • The container in which the mortar is to be prepared must be clean and free of any residual mix.
  • Care should be taken to clean the water and materials used.
  • The mortar should be prepared in 6-6.5 liters of water at the rate of 25 kg MEGATECH LF.
  • First water is poured into the container and then the powder is added slowly. It is mixed until a homogeneous mixture is obtained.
  • In order to make the mixture homogeneous, a low speed mixer should
  • be used.
  • After obtaining a homogeneous mixture, rest for 5-10 minutes for the mortar to mature.
  • It should be mixed again for 1-2 minutes before starting the application.
  • After the mixture becomes homogeneous, no powder, water or any other substance should be added.
  • The mortar is smeared on the thermal insulation boards with a steel trowel.
  • The plaster reinforcement mesh (fibermesh) is embedded with a steel trowel by gently pressing the mortar before it dries.
  • Approximately 10 cm one over the other in the joints of the plaster file.
  • After the 1.st layer of plaster is lightly watered, the second layer is applied before drying.
  • After applying the 2.nd layer of plaster, the surface is smoothened with a steel trowel.
  • The prepared mortar should be consumed within 3 hours.
  • Expired or crusted mortar in the container should be discarded.
  • Hands and application tools should be washed with plenty of water after the application.
  • Any coating can be applied after curing the surface.


Consumption

About 5-6 kg/m2


Performance Information

  • Hollow Unit Volume Mass of Fresh Mortar: ≥ 1150kg / m3
  • Hollow Unit Volume Mass of Hardened Cement-based Plaster: 1450 ± 250 kg / m3
  • Screen analysis: Amount remaining on the sieve with 1 mm gap 1,0 1.0%
  • Thermal Conductivity: Table 2 T1 ≤ 0.54 W /mK (P=90%)
  • Flexural Strength: ≥ 2 N / mm2 
  • Compressive Strength: ≥ 6 N / mm2 
  • Adhesion Strength to Thermal Insulation Board: ≥0.08N / mm2
  • Capillary Water Absorption: ≤ 0,5 kg/ m2.dk0,5
  • Water Vapor Permeability Coefficient: µ≤15
  •  Fire Class: A1 
  • Temperature resistance: +5°C to +30°C
  • Note: Application properties in the laboratory environment (23 ± 2 ° C and 50 ± 5% humidity and no air flow) were obtained as a result of experiments and may vary according to different environmental conditions. Performance information has been tested in the environments specified in accordance with the relevant standard of the product, and results may be observed in different environments.


Reference Standards

  • TSEK 113
  • G Mark 
  • Public Works Pos No: 04.481


Packaging

  • In 25 kg craft bag,
  • 64 in pallet, 1600 kg


Physical State

Gray, powder