Water repellent, breathable putty coat, based on siloxane dispersions

Code: PRT.0110

Components: 1

Appearance: Paste

Water repellent, breathable, pigmented, ready-to-use putty coat, based on siloxane resins dispersed in water. Perfect for protective coating, water and weather-resistant, in renovation of façades of civil and industrial buildings, and in new construction.

Functional categories
Customs Code
3214 9000

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: +8 / +30 °C




To be applied in two coats




Density: 1.72 (± 0.02) kg/dm³

Technical specifications


7.6-8.9 _

Capillary absorption

0.23 kg•h^0.5/m²

Dry residue

83.8 %

Available colours

- White

Packaging and dimensions

- Pail 5 kg

- Pail 25 kg


PROTECH SIL I is available in 5 different sizes for the most varied applications:
- Very fine (grain ≤ 0.4 mm)
- Fine (grain ≤ 0.7 mm)
- Medium (grain ≤ 1.0 mm)
- Large (grain ≤ 1.5 mm)
- Very large (grain ≤ 2.0 mm)

Use fields

"Waterproofing", water repellent, breathable, protective and decorative finish, for masonry surfaces in vintage buildings, subject to protection as "cultural heritage" or otherwise, in restoration, for new buildings, in dehumidifying systems etc.

Preparation of supports

The surfaces of application will be adequately prepared: dry, free from fouling, powder, crumbling parts, incoherent, pre-existing synthetic paints etc. Any lime and/or cement-based plaster, lime painting, compact and anchored, they can be preserved. It is essential to pre-treat with the siloxane fixative PROTECH SIL FIX.

Use method

PROTECH SIL I is ready to use, in the form of thixotropic paste which, after thorough mixing, can be applied immediately. Two layers of application are recommended, each with a thickness not exceeding the size of the calcareous grain contained in the product. After applying the second coat, when the product starts the drying stage, proceed to floating with sponge tool.

Application methods

- Finishing trowel

- Sponge float

- Spatula

Tool cleaning

- Water

Permitted supports

- Plasters

- Concrete

- Cement-based or lime-based mortars

- Prefabricated concrete

- Fiber-cement


Products on display

  • Sanawarme
  • Protech Balcony
  • Syntech H.A.G.