Sanastof Bianco
Sanastof Bianco is a product based on natural hydraulic lime NHL 3.5, kaolin, marble dust, selected siliceous aggregates and light aggregates with a low modulus of elasticity, dimensionally stable. It is a natural product with high intrinsic breathability, without any trace of resins, solvents, diluents and radio-emissive aggregates. The product contains high tenacity microfibers which give great volumetric stability. The special rounded hollow aggregates, dimensionally stable, bring special qualities of thermal insulation, filtering of potentially harmful soluble salts and reduction of the elastic modulus to the shaving. The granulometric curve, the fineness of the binders and some rheological additives of natural origin, make the product particularly smooth during the drafting phase, even when laid on supports with rough or difficult surfaces. The calibrated physical-mechanical characteristics guarantee perfect compatibility on different types of substrates, especially on traditional plasters and mortars. The microsilic content with pozzolanic activity makes smoothing and smoothing performed with Sanastof Bianco highly durable, even in aggressive exposure environments.
Fields of application
Quick and easy application on various substrates, such as: transpiring smoothing of wall casings; smoothing on modular wood fiber or calcium silicate coats; regularization of plastered surfaces; leveling of concrete surfaces; regularization and smoothing of repairs carried out with cement mortars; application to mainly thin thicknesses (from 1 to 4 mm) with simultaneous leveling of recesses, imperfections etc. In particularly severe operating conditions it is advisable to interpose, between the first and second coat, the alkali-resistant glass fiber mesh Armaglass 160 (the mesh must be partially drowned on the first still fresh coat of Sanastof Bianco). The breathability, combined with the other physico-chemical characteristics of the product, make the smoothing made with Sanastof an ideal support to accommodate any kind of paint and in particular mineral paints based on potassium silicate or slaked lime. Sanastof is the transpiring smoothing, with a low modulus of elasticity, recommended in all our dehumidifying systems made with the products: Sanatigh, Caleosana, Sanawarme, Unisan, Intosana.
Allowed supports
Plasters
Cement-based or lime-based mortars
Preparation of supports
The application surfaces must be clean, free from dirt, crumbly and incoherent parts, dust, etc. Smooth substrates must be roughened (roughness> = 1mm). In the event that the support, after cleaning and roughening, is still dusty and crumbly, remove the totally incoherent parts dry with a spatula-brush, or assisting the removal operation with hydro-washing, then consolidate the support by impregnation with aqueous emulsion Protech Fix AC applied in two abundant coats, the second coat immediately before applying Sanastof Bianco with the "fresh on fresh" technique (the consumption of Protech Fix AC for this priming operation is between 120 and 250 gr / m2). Adequately wet the substrate with water before application, anticipating and repeating this operation several times in the case of very porous and absorbent substrates or in hot and arid climates.
Mode of use
Pour about 2/3 of the mixing water into the mixer. Gradually add Sanastof Bianco and the water still required, continuing to mix until a homogeneous mixture is obtained, free of lumps, with a plastic consistency, easily workable with a flat metal spatula or trowel both on vertical surfaces and on the ceiling. We recommend mixing with a whisk drill or high efficiency mixers. The indicatively necessary mixing water is equal to 25-28% by weight (6.25-7 liters per 25 kg bag). Apply with a trowel or blade and finish with a trowel, sponge float or spatula. Optimal finishing results are obtained by applying Sanastof Bianco in two coats (the second coat must be applied after the first one has adequately dried). The spatula finish allows to obtain the "antique spatula" effect. The trowel finish highlights the grain size of the product. On very uneven substrates (cracks, thickness changes, discontinuity) and in severe operating conditions, it is advisable to interpose, between the first and second coat, Armaglass 160 alkali-resistant glass fiber mesh (the mesh must be partially drowned on the first coat still fresh from Sanastof Bianco). Prolonged wet maturation and convenient protection of fresh surfaces from direct sunlight, rain and wind are essential for proper maturation.
Application methods
Finishing trowel
Plastering machine
Spatula
Sponge
Technical specifications
Compressive strength
UNI EN 1015-11
> 3 N/mm²
Flexural strength
UNI EN 1015-11
1.5 N/mm²
Bonding force
UNI EN 1015-12
0.35 N/mm²
Coefficient of permeability
UNI EN 1015-19
22-25 μ
Breathability
UNI EN 1015-19
13 μ
Thermal conductivity
EN 1745
0.67 W/mK
Capillary absorption
UNI EN 1015-18
0.75 kg•h^0.5/m²
Consumption
Approximately 1,3 kg/m² of Sanastof Bianco for each millimetre of thickness to be implemented (on average 3 - 3,5 kg per square metre).
Storage and conservation
Store the product in its original packing, in a fresh and dry environment, avoiding frost and direct sunlight.
Warnings
The general information, along with any instructions and recommendations for use of this product, including in this data sheet and eventually provided verbally or in writing, correspond to the present state of our scientific and practical knowledge.
Any technical and performance data reported is the result of laboratory tests conducted in a controlled environment and thus may be subject to modification in relation to the actual conditions of implementation.
Azichem Srl does not assume any liability arising from inadequate characteristics related to improper use of the product or connected to defects arising from factors or elements unrelated to the quality of the product, including improper storage.
Those wishing to utilise the product are required to determine prior to use whether or not the same is suitable for the intended use, assuming all consequent responsibility.
The technical and characteristic details contained in this data sheet shall be updated periodically. For consultation in real time, please visit the website: www.azichem.com. The date of revision is indicated in the space to the side. The current edition cancels out and replaces any previous version.
Please note that the user is required to read the latest Safety Data Sheet for this product, containing chemical-physical and toxicological data, risk phrases and other information regarding the safe transport, use and disposal of the product and its packaging. For consultation, please visit: www.azichem.com.
It is forbidden to dispose of the product and/or packaging in the environment.
