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SNOW-WHITE GYPSUM FINISHING COAT

Product description

SNOW-WHITE GYPSUM FINISH is designed for application of top finishing coats on walls and ceilings as well as for filling local cavities.

Main properties

  • Beginning of the setting: > 60 min.
  • End of the setting: < 180 min.
  • Flexural strength: ≥ 1.0 N/mm²
  • Compressive strength: ≥ 2.0 N/mm²

Main parameters

  • Consumption: approx. 1.00 kg / 1 m²/ 1 mm
  • Maximum single coat thickness: 2 mm

USE

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SNOW-WHITE GYPSUM FINISH is designed for application of top finishing coats on walls and ceilings as well as for filling local cavities. For indoor use, on mineral substrates, particularly gypsum (gypsum plasters, plasterboards, gypsum blocks), concrete, cement and cement-lime plasters. Uneven mineral substrates, including rough walls made of airbrick and brick (ceramic, silicate, cellular concrete) should be evened with a plaster first. The mortar should not be used on metal, wooden and plastic substrates.

PROPERTIES

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SNOW-WHITE GYPSUM FINISH is a dry mix manufactured on the basis of anhydrite, mineral fillers and modifiers, which make the mortar flexible and easy in application. The finish hardness is optimally set for manual processing and polishing with the use of sandpaper, sanding block or abrasion mesh. After setting, the top finish is snow white, therefore forms perfect substrate for painting, even with one-coat paints. It is ecological, environmentally-friendly, ensures favourable room microclimate with beneficial influence on human health and well-being.

SUBSTRATE PREPARATION

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The substrate should be even, strong, stable, dry (moisture content max. 3%), unfrozen, free of bloom and cleaned of impurities which might reduce the gypsum adhesion. Gypsum plasters and gypsum prefabricates do not require priming. In case of plasterboards follow the boards manufacturer recommendations. Very absorbent substrates should be primed with one of the priming agents EURO-GRUNT. In case of smooth substrates, e.g. concrete, use the priming agent INTER-GRUNT. Priming should be executed in accordance to the guidelines listed on the packaging. Any steel elements, which might contact the plaster directly, should be protected against corrosion.

MORTAR PREPARATION

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Pour the dry mix into a container with clean water (ratio: approx. 0.5 l of water for 1 kg of gypsum), leave for 3-5 minutes, then mix manually or mechanically until homogenous and free of lumps. The mass prepared for filling the cavities should be denser than the one for top finish.  The mass can be used just after mixing and keeps the working parameters for approx. 60 minutes. Unused mortar, when its setting starts, must not be re-mixed with water and should be removed as it shortens the setting time of the next mix.

APPLICATION

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Apply the mass onto the substrate with a stainless steel float, firmly pressing towards the substrate. In case of ceilings, apply the mix in strips starting from the window towards the interior, moving the float towards yourself. For walls, it is recommended to apply the mix in strips, starting from the floor towards the ceiling, moving the float upwards. If the second coat needed, one should wait until the first coat sets and dries. The maximum single coat thickness should not exceed 2 mm and total coats thickness should not exceed 3 mm. Minor irregularities can be re-floated and polished after drying. The drying time depends on the coat thickness, temperature and humidity in a room. Avoid direct sunshine and draughts during the coat drying, provide proper room ventilation. Additional recommendations: surface preparation for paint coats and wallpapers – check if the surface is properly dry (max. Moisture up to 1%) and free of dust. Use a primer designed for a particular top coat. Follow the recommendations of the paint or wallpaper manufacturer.  

CONSUMPTION

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The average consumption for top finish is approx. 1.0 kg per 1 m² for coat thickness of 1 mm.

PACKAGES

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Paper bags 5 kg, 20 kg.
Pallet: 1,100 kg in 5 kg bags, 1080 kg in 20 kg bags.

STORAGE & TRANSPORT

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Shelf life is 9 months from the production date given on the bag. Transport and store the product in tightly closed bags, on pallets, in dry conditions. Protect against humidity. Incoherence with recommendations listed above may impact the product working parameters.

TECHNICAL DATA

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Mixing ratio:
ca. 0.6 l of water for 1 kg of dry mix
ca. 3.0 l of water for 5 kg of dry mix
ca. 12.0 l of water for 20 kg of dry mix
Beginning of setting:
> 60 minutes
End of the setting
< 180 minutes
Conditions during plastering:
substrate and ambient temperature:
+5 °C and +25 °C, room humidity: up to 70%
Bonding to the substrate:
≥ 0.1 N/mm²
Flexural strength:
≥ 1.0 N/mm²
Compressive strength:
≥ 2.0 N/mm²
Maximum single coat thickness:
2 mm

Standard marking
Gypsum finishing coat for plastering walls and ceilings
EN 13279-1- C7/20/2
Use
Indoors
Reaction to fire
Class A1
Airborne sound insulation
NPD
Thermal resistance
NPD

Conforms to the requirements of PN-EN 13279-1:2009 standard.

Declaration of Performance no. EC D170/CPR.

The product has been given the hygiene certificate no. HK/B/0787/01/2014 issued by the Polish National Institute of Hygiene and the radiation hygiene certificate no. HR/B/69/2014.
 
NOTE
Keep out of the reach of children.
 
The above information constitutes basic guidelines for the application of the product and does not release the user from the obligation of carrying out works according to building principles and OHS regulations. At the time of publication of this product data sheet all previous ones become void.