Restoring anti-condensation thermal putty coat based on potassium silicates

Code: PRT.0337

Components: 1


Smoothed mineral coating for interiors and exteriors with potassium silicates with chemical adhesion, anti-condensation, insulation, mould resistant, thanks to the addition of hollow glass spheres. SANAXIL I - THERM due to its mineral nature with chemical adhesion, revolutionizes the concept of adhesion to the support, penetrating deeply into the pores of the wall to then react with its components and form a unique and indissoluble "silicating" whole. With a final appearance similar to civil plaster.

Linee di appartenenza

Certification obtained and Standards

Specifications for organic binder based interior and exterior plasters

EN 15824

Specifications for organic binder based interior and exterior plasters

General characteristics


Use wearing protective glasses


Shelf-life: 12 months


Highlighted product


To be applied in two coats


Use wearing protective gloves

Technical specifications

Thermal conductivity

1.17 - 1.28 W/m*K

Liquid water transmission

0.154 kg•h^0.5/m²

Degree of water vapor transmission

0.3369 m

Determination of adhesion for direct traction (Fh)

0.4 MPa

Reaction to fire

F _

Available colours

- White

Packaging and dimensions

- Pail 22 kg


The product does not form a film thus avoiding detachment and peeling phenomena, it ensures a permeability to water vapour thanks to its microcrystalline structure of the same porosity as the wall while guaranteeing excellent water repellency. Elasticity and hardness are coupled in maximum degree with a wide choice of colours not alterable over time; characteristics that, combined with the ease and practicality of application, make the product extremely multi-functional, adaptable to any project requirement.


Indicative consumption depending on the different particle sizes of SANAXIL I - THERM available:
1 mm GRAIN: approximately 1.6 -1.8 kg/m²;
1.2 mm GRAIN: approximately 1.8 -2.0 kg/m²;
2 mm GRAIN: approximately 2.4 -2.8 kg/m²;
2.2 mm GRAIN: approximately 2.6 -3.0 kg/m².
The indicated yields refer to smooth supports and are for guidance only. Actual consumption must be identified with a suitable practical test.

Use fields

Restoring protective coatings based on stabilised potassium silicates, for vertical and horizontal surfaces. All products in the SANAXIL I – THERM series cannot be attacked by mould. Recommended as a finish in "cladding" insulation systems, as it helps to increase the thermo-acoustic and anti-condensation coefficient.

Preparation of supports

Stone, masonry, concrete and any type of plaster. The SANAXIL I - THERM system can be applied directly on surfaces treated with mineral paints or new surfaces. If there are residues of organic paint on the support (washable, solvent-based paints, etc.), before application it is necessary to remove them by stripping or sandblasting, and also never apply on plaster, under the beating sun, on warm or wet walls. During application, cover areas that are not to be painted such as jambs, doors, windows and floors because silicates attack glass, metals, ceramics, glazes, paint, marble and granite. Adverse climatic conditions can impose the realization of adequate protection during the application and drying phase of the coating. Never mix with other non-mineral based paints.
Apply a coat of PROTECH FIX AC - THERM fixative diluted from 20 to 50% with water depending on the absorption of the support.
On old supports, remove the old paint by brushing, fill in any holes or imperfections in the wall with a suitable filler, proceed with fixing with PROTECH FIX AC - THERM impregnating agent diluted 20 to 50% depending on the absorption of the support.

Use method

The product is ready to use if necessary add a little water and stir slowly. Apply a coating layer with a stainless steel trowel with a thickness equal to that of the granules it contains. Pass again with a cutting spatula to remove any excess material. After light drying, pass over with a plastic trowel with rotary movements to compact, even out and achieve the full plaster effect. On large surfaces, it is recommended to apply the product of the same lot and proceed always wet on wet to avoid signs of resumption.

Application methods

- Finishing trowel

- Spatula

- Sponge float

Tool cleaning

- Water

Permitted supports

- Cement-based or lime-based mortars

- Concrete

- Fiber-cement

- Plasters

Warnings, precautions and Ecology

Do not apply on surfaces in gypsum, on non-hardened surfaces, on wet or hot surfaces, with direct sunlight. During application, protect glass, enamelled metal, aluminium, polished tiles etc., which may be opacified from accidental contact with silicate solutions. Colours may vary slightly depending on the temperature conditions at the time of spreading and during the stages of drying.

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