Powdered lime-based plaster with big grains for interiors and exteriors
Archi+ Big is a mineral plaster coat in powder for interiors and exteriors. It is made of well-seasoned hydrated lime putties, white cement, specific aggregates and rheological modifiers carefully selected to ensure an excellent workability.
The particular grain curve of the product and the application technique ensure to achieve pleasant aesthetic effect, even with the application of one single layer.
Application:
- The substrate must be perfectly dry, dust-free, with no humidity and salt stains.
- Remove any traces of disarming.
- Remove with mechanic drill or high-pressure washing detaching parts or traces of dirt. Level any irregularities in the surface and treat holes, cracks, cervices and gaps in indoor with specific products. Wait for the complete maturation of the substrate before to start the application.
- For the preparation of the substrate, Archi+ Fondo (mineral key coat) can be applied-on in one or two coats in order to build up the ideal mineral support for Archi+ Big.
- On dry and compact substrate, apply with brush a layer of Decofix (micronized clear sealer) properly diluted.
- For non-chalk, solid and compact surfaces, Novaprimer (acrylic pigmented sealer) can be applied in one layer, diluted, with brush.
- When the substrate is completely dry, apply one smooth coat of Archi+ Big with a stainless steel trowel.
- Work into the product still wet with the flat part of the trowel, depending on the aesthetic desired effect.
- Wait the product starts to set (partially dry) before smoothing it down with a stainless still trowel.
- It is possible to enhance an even more decorated look applying one or two layers of Fase Silossanica on the completely dry surface. It is advisable to apply the first layer of colourless Fase Silossanica to apply later one or more layers of tinted Fase Silossanica to complete the decoration and protection.
- Apply the first layer of Fase Silossanica, diluted, with a clean and dry sea sponge.
- Remove the exceeding products, working the surface with a clean and dry sponge.
- When the substrate has dried out totally, apply a second coat of Fase Silossanica following the same procedures.
- Drying time: 48 hours approx. depending on the type of substrate, its absorption rate and weather conditions.
May also be applied over:
- Lime and cement mortars
- Premixed renderings
- Pre-existing lime and gypsum plasters
- Moisture-permeable plasters
- Gypsum plasterboard
Approximate coverage yields 2.0-2.7 Kg/m2 (ref. to the paste) and 1.2-1.8 Kg/m2 (ref. to the powder), in one layer depending on the type of substrate. It is suggested to test the effective yield directly at site.
Fase Silossanica: 12-15 m2/l for 2 layers depending on the type of substrate. It is suggested to test the effective yield directly at site.
