Anti-condensation, reflective siloxane plaster, with glass microspheres

Code: PRT.0335

Components: 1

Appearance: Paste

Spatulated nanotechnological wall coating for interiors and exteriors, anti-condensation, elastomeric, sanitizing, thermal insulator, formulated with hollow glass microspheres (3M Glass Bubble), heat-reflecting based on siloxane resins in aqueous emulsion with high permeability to water vapor, with a similar final appearance to the civil plaster. It allows the creation of thermal insulation with the obvious advantages of recovering the thermal mass from the walls and eliminating bridges and thermal changes in buildings.

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




Shelf-life: 12 months


Temperature of use: +5 / +35 °C


Highlighted product


To be applied in two coats

Technical specifications

Solar reflection index (SRI)

95.2 _

Degree of water vapor transmission

0.3992 FP:A

Reaction to fire

F _

Determination of adhesion for direct traction (Fh)

0.4 MPa

Adhesion to substrate

0.4 MPa

Complete hardening

24 - 48 h

Thermal conductivity

0.83 - 0.93 W/m*K

Liquid water transmission


Available colours

- White

Packaging and dimensions

- Pail 20 kg


PROTECH SIL I - THERM designed above all for buildings and monuments subject to the protection of the Ministry of Cultural Heritage. The binder based on an emulsion of silicones has allowed to develop a microporous filter impermeable to heavy rain, and at the same time permeable to the diffusion of water vapour. Thermal insulation coating that allows the realization of a thermal insulation with the obvious advantages of recovering the thermal mass from the walls and eliminating bridges and thermal changes of the buildings. Due to its high degree of insulation and transpiration, it is widely used to radically solve mould problems, through the synergistic action of fungicide and thermal insulation. It is composed of a water-dilutable silicone resin, acrylic dispersion, with controlled grain size marble grit, fillers, 3M Glass Bubbles, sanitizing additives and pigments, in a content that guarantees the fulfilment of physical parameters such as: permeability, water repellency, CO2 diffusion, etc.


Indicative consumption depending on the different particle sizes of PROTECH SIL 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

Suitable for any type of mineral support, ideal especially on walls where the growth of mould and algae represents a serious problem. Due to its low thermal conductivity, it is particularly suitable for solving problems of mould and algae on walls exposed to areas of shade and high humidity.

Preparation of supports

Remove any stains and proceed with painting with the siloxane coating (it is always recommended to apply a coat of siloxane impregnating agent).
Apply a coat of siloxane acrylic fixative diluted from 20 to 60% with water depending on the absorption of the support.
Clean the wall from mould and algae with a steam cleaner, disinfect with CONSILEX MUFFA CLEANER and CONSILEX MUFFA REMOVER (sanitizer) after a few hours, when the microorganisms have neutralized proceed with the application of a coat of PROTECH FIX AC - THERM diluted from 20 to 50 % with water. Once dry, proceed with the application of PROTECH SIL I - THERM.

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

- Prefabricated concrete

Warnings, precautions and Ecology

Never operate at temperatures below + 5°C. Rainy weather, excessive atmospheric humidity and temperatures below + 8°C, can considerably compromise drying with the possibility of rainwater washout even after several days. In these situations, it is advisable to protect the facades from unpredictable showers, in order not to jeopardize the success of the work. For storage store in tightly closed containers and protect from frost.

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