Mineral coating with lime and clay for interiors and exteriors.
Calcecruda is a microporous decorative coating, of mineral nature, with a strong natural connotation that actively contributes to living comfort.
Calcecruda is formulated on the specific properties of lime hydrate, purified clay, selected marbles and natural sands, which when appropriately balanced, allow excellent workability and moldability.
The clay component creates a network structure of particles, adjusts processing times and improves the workability of the product. The presence of cellulose fibres strengthens and reinforces the structure, thus contributing to the realisation of greater thicknesses in synergy with the other components.
Calcecruda allows the attainment of top quality finishes with crinkled effect, with soft and warm colours, at the same time providing an elegant decoration for interior and exteriors surfaces.
CalceCruda permits to considerably reduce the formaldehyde concentration in the environment.
This property is tested according to the specific ISO 16000-23 regulation. Destruction process durability is not permanent, this property is strictly linked to the environmental conditions.
The product complies with the Indoor Air Comfort Gold specification of Eurofins.
Application:
- The surface must be dry and have no dust and mineral salt spots.
- If necessary, restore or consolidate the substrate using specific products.
- Treat the surface with appropriate products in the presence of mould.
- Remove any salt bloom and any flaking old paint by brushing or washing.
- Completely eliminate any raised layers of lime-based or tempera paint. Remove the dust deposits, smog and other by brushing.
- Prepare the substrate with one layer of Zer0 Primer (water-based mineral primer) diluted, applied with a brush.
- Using a stainless steel spatula, apply a smooth layer of Calcecruda onto a completely dry surface and before the latter dries totally, finish the surface using a damp sponge trowel.
- Eliminate any imperfections or accumulations of material.
- When the first layer has dried completely, use the stainless steel spatula to apply a second layer of Calcecruda and, before this dries totally, finish the surface using a damp sponge trowel to obtain a sealed but rustic surface.
- In order to obtain a polished effect, pass over the surface with a stainless steel gloss spatula for plasters, before it dries completely.
- To obtain a compact effect, before the surface dries completely it is necessary to pass over the surface with a stainless steel spatula, making sure to handle only small portions of material.
- Drying time: approx. 24 hours depending on the type of substrate, its absorption and the environmental conditions. CalceCruda can be applied outdoor only if topcoated with at least two layers of Fase Silossanica or Patina Minerale. It is recommended to apply one layer of color wash clear and following, to complete the process of decoration-protection of the surfaces, one or more layers of tinted color wash.
May also be applied over:
- New and old base hydraulic binder-based plaster.
- Old paints and organic or mineral coatings, dry, compact, absorbent and cohesive.
- Various absorbent mineral conglomerates.
- Gypsum and plasterboard surfaces
Approximate coverage yields 1.5–2.5 kg/m2 in the two layers, according to the finish of the substrate and its absorption.
It is good practice to check the effective coverage via a preliminary test on the specific substrate.
